[INFO] fetching crate rusticsearch 0.0.2...
[INFO] testing rusticsearch-0.0.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate rusticsearch 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rusticsearch 0.0.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusticsearch 0.0.2
[INFO] finished tweaking crates.io crate rusticsearch 0.0.2
[INFO] tweaked toml for crates.io crate rusticsearch 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.9.0
[INFO] [stderr]   Downloaded uuid v0.3.1
[INFO] [stderr]   Downloaded rayon v0.8.2
[INFO] [stderr]   Downloaded ansi_term v0.7.5
[INFO] [stderr]   Downloaded persistent v0.2.1
[INFO] [stderr]   Downloaded unicode-segmentation v0.1.3
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded maplit v0.1.6
[INFO] [stderr]   Downloaded router v0.2.0
[INFO] [stderr]   Downloaded error-chain v0.2.2
[INFO] [stderr]   Downloaded slog-term v0.6.0
[INFO] [stderr]   Downloaded roaring v0.4.2
[INFO] [stderr]   Downloaded kite v0.1.0
[INFO] [stderr]   Downloaded slog v0.6.0
[INFO] [stderr]   Downloaded atomicwrites v0.1.5
[INFO] [stderr]   Downloaded librocksdb-sys v0.4.1
[INFO] [stderr]   Downloaded kite_rocksdb v0.1.0
[INFO] [stderr]   Downloaded rocksdb v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d501e070927e097ff3b88a73fdc2d258d6685859acc9fc84bf62c9168f63bdd
[INFO] running `Command { std: "docker" "start" "-a" "4d501e070927e097ff3b88a73fdc2d258d6685859acc9fc84bf62c9168f63bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d501e070927e097ff3b88a73fdc2d258d6685859acc9fc84bf62c9168f63bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d501e070927e097ff3b88a73fdc2d258d6685859acc9fc84bf62c9168f63bdd", kill_on_drop: false }`
[INFO] [stdout] 4d501e070927e097ff3b88a73fdc2d258d6685859acc9fc84bf62c9168f63bdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c508285d8fb06b17ca859df7f585b86223a01c76e75f98506732a18f267aee9
[INFO] running `Command { std: "docker" "start" "-a" "7c508285d8fb06b17ca859df7f585b86223a01c76e75f98506732a18f267aee9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
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[INFO] [stderr]    Compiling matches v0.1.10
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[INFO] [stderr]    Compiling rustc-demangle v0.1.23
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[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
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[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling error-chain v0.2.2
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[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling slog v0.6.0
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling route-recognizer v0.1.13
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling iron v0.4.0
[INFO] [stderr]    Compiling slog-term v0.6.0
[INFO] [stderr]    Compiling router v0.2.0
[INFO] [stderr]    Compiling persistent v0.2.1
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling maplit v0.1.6
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling atomicwrites v0.1.5
[INFO] [stderr]    Compiling kite v0.1.0
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/iostats_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/posix_logger.h:27,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/port/util_logger.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/filename.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/filename.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/posix_logger.h:26,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/port/util_logger.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/iostats_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/posix_logger.h:27,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/port/util_logger.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/iostats_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/posix_logger.h:27,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/port/util_logger.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/auto_roll_logger.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_updater.h:42,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:34:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    22 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:34:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    50 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   197 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.cc:34:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    87 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   128 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/compression.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/c.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/c.cc:17:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/c.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/c.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/c.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/c.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/c.cc:22:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/c.cc:24:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::FullMerge(const rocksdb::Slice&, const rocksdb::Slice*, const std::deque<std::__cxx11::basic_string<char> >&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:69:39: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    69 |   virtual bool FullMerge(const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:70:39: warning: unused parameter 'existing_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    70 |                          const Slice* existing_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:71:57: warning: unused parameter 'operand_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |                          const std::deque<std::string>& operand_list,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:72:39: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    72 |                          std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:73:34: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    73 |                          Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::PartialMerge(const rocksdb::Slice&, const rocksdb::Slice&, const rocksdb::Slice&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:42: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:60: warning: unused parameter 'left_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:42: warning: unused parameter 'right_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:70: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                         ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:150:37: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   150 |                             Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/c.cc:28:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/c.cc:31:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc: In member function 'virtual void rocksdb_comparator_t::FindShortSuccessor(std::string*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:199:48: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   199 |   virtual void FindShortSuccessor(std::string* key) const override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc: In member function 'virtual bool rocksdb_mergeoperator_t::PartialMergeMulti(const rocksdb::Slice&, const std::deque<rocksdb::Slice>&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:314:42: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   314 |                                  Logger* logger) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc: In function 'void rocksdb_options_set_max_mem_compaction_level(rocksdb_options_t*, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1555:70: warning: unused parameter 'opt' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1555 | void rocksdb_options_set_max_mem_compaction_level(rocksdb_options_t* opt,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1556:55: warning: unused parameter 'n' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1556 |                                                   int n) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~^
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc: In function 'void rocksdb_options_set_purge_redundant_kvs_while_flush(rocksdb_options_t*, unsigned char)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1625:77: warning: unused parameter 'opt' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1625 | void rocksdb_options_set_purge_redundant_kvs_while_flush(rocksdb_options_t* opt,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1626:72: warning: unused parameter 'v' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1626 |                                                          unsigned char v) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~~^
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc: In function 'void rocksdb_options_set_table_cache_remove_scan_count_limit(rocksdb_options_t*, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1763:24: warning: unused parameter 'opt' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1763 |     rocksdb_options_t* opt, int v) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/c.cc:1763:33: warning: unused parameter 'v' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1763 |     rocksdb_options_t* opt, int v) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~^
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_updater.h:42,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:33:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    22 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:33:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    50 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   197 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/column_family.cc:33:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    87 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   128 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:22:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/column_family.cc:22:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:23:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/unordered_map:43,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/unordered_map:43,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::Put(const rocksdb::WriteOptions&, rocksdb::ColumnFamilyHandle*, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:35:42: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    35 |   virtual Status Put(const WriteOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                      ~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:36:42: warning: unused parameter 'column_family' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    36 |                      ColumnFamilyHandle* column_family, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                      ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:36:70: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    36 |                      ColumnFamilyHandle* column_family, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                         ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:37:35: warning: unused parameter 'value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    37 |                      const Slice& value) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                      ~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::Merge(const rocksdb::WriteOptions&, rocksdb::ColumnFamilyHandle*, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:41:44: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    41 |   virtual Status Merge(const WriteOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:42:44: warning: unused parameter 'column_family' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    42 |                        ColumnFamilyHandle* column_family, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:42:72: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    42 |                        ColumnFamilyHandle* column_family, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:43:37: warning: unused parameter 'value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    43 |                        const Slice& value) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::Delete(const rocksdb::WriteOptions&, rocksdb::ColumnFamilyHandle*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:47:45: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   virtual Status Delete(const WriteOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                         ~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:48:45: warning: unused parameter 'column_family' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    48 |                         ColumnFamilyHandle* column_family,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                         ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:49:38: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    49 |                         const Slice& key) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                         ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::Write(const rocksdb::WriteOptions&, rocksdb::WriteBatch*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:52:44: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    52 |   virtual Status Write(const WriteOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:53:36: warning: unused parameter 'updates' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    53 |                        WriteBatch* updates) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::CompactRange(const rocksdb::CompactRangeOptions&, rocksdb::ColumnFamilyHandle*, const rocksdb::Slice*, const rocksdb::Slice*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:57:58: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    57 |   virtual Status CompactRange(const CompactRangeOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:58:51: warning: unused parameter 'column_family' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    58 |                               ColumnFamilyHandle* column_family,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:59:44: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    59 |                               const Slice* begin, const Slice* end) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:59:64: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    59 |                               const Slice* begin, const Slice* end) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::EnableFileDeletions(bool)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:66:43: warning: unused parameter 'force' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   virtual Status EnableFileDeletions(bool force) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                      ~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::GetLiveFiles(std::vector<std::__cxx11::basic_string<char> >&, uint64_t*, bool)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:70:41: warning: unused parameter 'manifest_file_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    70 |                               uint64_t* manifest_file_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:71:36: warning: unused parameter 'flush_memtable' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |                               bool flush_memtable = true) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h: In member function 'virtual rocksdb::Status rocksdb::CompactedDBImpl::Flush(const rocksdb::FlushOptions&, rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:75:44: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual Status Flush(const FlushOptions& options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compacted_db_impl.h:76:44: warning: unused parameter 'column_family' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |                        ColumnFamilyHandle* column_family) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compacted_db_impl.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.cc:20:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/utility:70,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/algorithm:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/utility:70,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/algorithm:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_updater.h:42,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:61:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    22 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_operation.h:22:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/thread_status_util.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:61:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    50 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:50:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:66:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   197 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_updater.h:197:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction_job.cc:61:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    87 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:87:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   128 | #if ROCKSDB_USING_THREAD_STATUS
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_status_util.h:128:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/block.h:27,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:46:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h: In function 'uint32_t rocksdb::GetCompressFormatForVersion(rocksdb::CompressionType, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h:74:61: warning: unused parameter 'compression_type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    74 | inline uint32_t GetCompressFormatForVersion(CompressionType compression_type,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction_job.cc:46:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h: In constructor 'rocksdb::BlockReadAmpBitmap::BlockReadAmpBitmap(size_t, size_t, rocksdb::Statistics*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h:64:11: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct std::atomic<unsigned int>' with no trivial copy-assignment; use value-initialization instead [-Wclass-memaccess]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 |     memset(bitmap_, 0, bitmap_size * kBytesPersEntry);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction_job.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/atomic:845:12: note: 'struct std::atomic<unsigned int>' declared here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   845 |     struct atomic<unsigned int> : __atomic_base<unsigned int>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |            ^~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = rocksdb::CompactionJob::SubcompactionState::Output; _Args = {const rocksdb::CompactionJob::SubcompactionState::Output&}; _Tp = rocksdb::CompactionJob::SubcompactionState::Output]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = rocksdb::CompactionJob::SubcompactionState::Output; _Args = {const rocksdb::CompactionJob::SubcompactionState::Output&}; _Tp = rocksdb::CompactionJob::SubcompactionState::Output; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<rocksdb::CompactionJob::SubcompactionState::Output>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_vector.h:1192:30:   required from 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = rocksdb::CompactionJob::SubcompactionState::Output; _Alloc = std::allocator<rocksdb::CompactionJob::SubcompactionState::Output>; std::vector<_Tp, _Alloc>::value_type = rocksdb::CompactionJob::SubcompactionState::Output]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_job.cc:1152:33:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_job.cc:79:10: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    79 |   struct Output {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |          ^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/c++allocator.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/allocator.h:46,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:11: note: synthesized method 'rocksdb::CompactionJob::SubcompactionState::Output::Output(const rocksdb::CompactionJob::SubcompactionState::Output&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   162 |         { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/deque:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc: In member function 'rocksdb::Status rocksdb::CompactionPicker::GetCompactionInputsFromFileNumbers(std::vector<rocksdb::CompactionInputFiles>*, std::unordered_set<long unsigned int>*, const rocksdb::VersionStorageInfo*, const rocksdb::CompactionOptions&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:358:30: warning: unused parameter 'compact_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |     const CompactionOptions& compact_options) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc: In member function 'virtual rocksdb::Compaction* rocksdb::LevelCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1017:46: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1017 |     VersionStorageInfo* vstorage, LogBuffer* log_buffer) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc: In member function 'virtual rocksdb::Compaction* rocksdb::FIFOCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1958:39: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1958 |     VersionStorageInfo* vstorage, int input_level, int output_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1958:56: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1958 |     VersionStorageInfo* vstorage, int input_level, int output_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1959:14: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1959 |     uint32_t output_path_id, const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1959:49: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1959 |     uint32_t output_path_id, const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1959:75: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1959 |     uint32_t output_path_id, const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.cc:1960:41: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:  1960 |     InternalKey** compaction_end, bool* manual_conflict) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/memory:63,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/version_set.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/memory:63,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_picker.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/table_cache.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/table_cache.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/version_set.h:33,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::PickCompaction(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, rocksdb::LogBuffer*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:346:49: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   346 |   Compaction* PickCompaction(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:347:54: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   347 |                              const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:348:50: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   348 |                              VersionStorageInfo* vstorage,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:349:41: warning: unused parameter 'log_buffer' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   349 |                              LogBuffer* log_buffer) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual rocksdb::Compaction* rocksdb::NullCompactionPicker::CompactRange(const string&, const rocksdb::MutableCFOptions&, rocksdb::VersionStorageInfo*, int, int, uint32_t, const rocksdb::InternalKey*, const rocksdb::InternalKey*, rocksdb::InternalKey**, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:354:47: warning: unused parameter 'cf_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   354 |   Compaction* CompactRange(const std::string& cf_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:355:52: warning: unused parameter 'mutable_cf_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   355 |                            const MutableCFOptions& mutable_cf_options,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:48: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:356:62: warning: unused parameter 'input_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   356 |                            VersionStorageInfo* vstorage, int input_level,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:32: warning: unused parameter 'output_level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:357:55: warning: unused parameter 'output_path_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   357 |                            int output_level, uint32_t output_path_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:47: warning: unused parameter 'begin' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:358:73: warning: unused parameter 'end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   358 |                            const InternalKey* begin, const InternalKey* end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:359:42: warning: unused parameter 'compaction_end' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   359 |                            InternalKey** compaction_end,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:360:34: warning: unused parameter 'manual_conflict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   360 |                            bool* manual_conflict) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h: In member function 'virtual bool rocksdb::NullCompactionPicker::NeedsCompaction(const rocksdb::VersionStorageInfo*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/compaction_picker.h:366:33: warning: unused parameter 'vstorage' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   366 |       const VersionStorageInfo* vstorage) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/compaction.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h: In member function 'virtual void rocksdb::VersionSet::LogReporter::Corruption(size_t, const rocksdb::Status&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_set.h:748:36: warning: unused parameter 'bytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   748 |     virtual void Corruption(size_t bytes, const Status& s) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_iterator.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/compaction_job.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/memtable.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/memtable_list.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/column_family.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/db_impl.h:22,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:14:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/convenience.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/convenience.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/table_builder.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/stl_tree.h:63,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/map:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_Tp1> >::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_Tp1> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/stl_tree.h:63,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/map:60,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/flush_block_policy.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/flush_block_policy.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/flush_block_policy.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/flush_block_policy.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/flush_block_policy.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/flush_block_policy.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/flush_block_policy.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_reader.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/compression.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h: In function 'uint32_t rocksdb::GetCompressFormatForVersion(rocksdb::CompressionType, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h:74:61: warning: unused parameter 'compression_type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    74 | inline uint32_t GetCompressFormatForVersion(CompressionType compression_type,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/format.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h: In constructor 'rocksdb::BlockReadAmpBitmap::BlockReadAmpBitmap(size_t, size_t, rocksdb::Statistics*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h:64:11: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct std::atomic<unsigned int>' with no trivial copy-assignment; use value-initialization instead [-Wclass-memaccess]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 |     memset(bitmap_, 0, bitmap_size * kBytesPersEntry);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/write_buffer_manager.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/options.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/atomic:845:12: note: 'struct std::atomic<unsigned int>' declared here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   845 |     struct atomic<unsigned int> : __atomic_base<unsigned int>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |            ^~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/full_filter_block.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_reader.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/filter_block.h:31,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h: In function 'uint32_t rocksdb::GetCompressFormatForVersion(rocksdb::CompressionType, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h:74:61: warning: unused parameter 'compression_type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    74 | inline uint32_t GetCompressFormatForVersion(CompressionType compression_type,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/full_filter_block.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.h: In member function 'virtual void rocksdb::FullFilterBlockBuilder::StartBlock(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.h:46:36: warning: unused parameter 'block_offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |   virtual void StartBlock(uint64_t block_offset) override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.cc: In member function 'virtual bool rocksdb::FullFilterBlockReader::KeyMayMatch(const rocksdb::Slice&, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.cc:76:14: warning: unused parameter 'block_offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |     uint64_t block_offset) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.cc: In member function 'virtual bool rocksdb::FullFilterBlockReader::PrefixMayMatch(const rocksdb::Slice&, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/full_filter_block.cc:85:53: warning: unused parameter 'block_offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    85 |                                            uint64_t block_offset) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/utilities/option_change_migration.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/utilities/option_change_migration/option_change_migration.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/utilities/option_change_migration/option_change_migration.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/utilities/option_change_migration/option_change_migration.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/utilities/option_change_migration/option_change_migration.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/concurrent_arena.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.h:97:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:18:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:18:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:18:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:42:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    42 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:42:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/concurrent_arena.cc:42:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/concurrent_arena.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/concurrent_arena.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/crc32c.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/db_options.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/db_options.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/db_options.cc:15:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/db_options.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/db_options.cc:18:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual void rocksdb::WalFilter::ColumnFamilyLogNumberMap(const std::map<unsigned int, long unsigned int>&, const std::map<std::__cxx11::basic_string<char>, unsigned int>&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:47:41: warning: unused parameter 'cf_lognumber_map' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |     const std::map<uint32_t, uint64_t>& cf_lognumber_map,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:48:44: warning: unused parameter 'cf_name_id_map' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    48 |     const std::map<std::string, uint32_t>& cf_name_id_map) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual rocksdb::WalFilter::WalProcessingOption rocksdb::WalFilter::LogRecordFound(long long unsigned int, const string&, const rocksdb::WriteBatch&, rocksdb::WriteBatch*, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:78:65: warning: unused parameter 'log_number' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    78 |   virtual WalProcessingOption LogRecordFound(unsigned long long log_number,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:79:60: warning: unused parameter 'log_file_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    79 |                                         const std::string& log_file_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual rocksdb::WalFilter::WalProcessingOption rocksdb::WalFilter::LogRecord(const rocksdb::WriteBatch&, rocksdb::WriteBatch*, bool*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:90:59: warning: unused parameter 'batch' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    90 |   virtual WalProcessingOption LogRecord(const WriteBatch& batch,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:91:53: warning: unused parameter 'new_batch' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    91 |                                         WriteBatch* new_batch,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:92:47: warning: unused parameter 'batch_changed' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    92 |                                         bool* batch_changed) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/delete_scheduler.cc:12:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc: In function 'uint64_t MurmurHash64A(const void*, int, unsigned int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:49:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    49 |     case 7: h ^= ((uint64_t)data2[6]) << 48;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:50:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    50 |     case 6: h ^= ((uint64_t)data2[5]) << 40;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:50:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    50 |     case 6: h ^= ((uint64_t)data2[5]) << 40;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:51:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    51 |     case 5: h ^= ((uint64_t)data2[4]) << 32;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:51:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    51 |     case 5: h ^= ((uint64_t)data2[4]) << 32;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:52:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    52 |     case 4: h ^= ((uint64_t)data2[3]) << 24;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:52:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    52 |     case 4: h ^= ((uint64_t)data2[3]) << 24;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:53:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    53 |     case 3: h ^= ((uint64_t)data2[2]) << 16;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:53:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    53 |     case 3: h ^= ((uint64_t)data2[2]) << 16;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:54:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    54 |     case 2: h ^= ((uint64_t)data2[1]) << 8;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:54:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    54 |     case 2: h ^= ((uint64_t)data2[1]) << 8;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/murmurhash.cc:55:5: note: here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    55 |     case 1: h ^= ((uint64_t)data2[0]);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:33:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:19:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:20:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:22:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:24:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:25:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::FullMerge(const rocksdb::Slice&, const rocksdb::Slice*, const std::deque<std::__cxx11::basic_string<char> >&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:69:39: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    69 |   virtual bool FullMerge(const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:70:39: warning: unused parameter 'existing_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    70 |                          const Slice* existing_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:71:57: warning: unused parameter 'operand_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |                          const std::deque<std::string>& operand_list,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:72:39: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    72 |                          std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:73:34: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    73 |                          Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::PartialMerge(const rocksdb::Slice&, const rocksdb::Slice&, const rocksdb::Slice&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:42: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:60: warning: unused parameter 'left_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:42: warning: unused parameter 'right_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:70: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                         ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:150:37: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   150 |                             Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:27:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:28:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:30:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual void rocksdb::WalFilter::ColumnFamilyLogNumberMap(const std::map<unsigned int, long unsigned int>&, const std::map<std::__cxx11::basic_string<char>, unsigned int>&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:47:41: warning: unused parameter 'cf_lognumber_map' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |     const std::map<uint32_t, uint64_t>& cf_lognumber_map,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:48:44: warning: unused parameter 'cf_name_id_map' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    48 |     const std::map<std::string, uint32_t>& cf_name_id_map) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual rocksdb::WalFilter::WalProcessingOption rocksdb::WalFilter::LogRecordFound(long long unsigned int, const string&, const rocksdb::WriteBatch&, rocksdb::WriteBatch*, bool*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:78:65: warning: unused parameter 'log_number' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    78 |   virtual WalProcessingOption LogRecordFound(unsigned long long log_number,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:79:60: warning: unused parameter 'log_file_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    79 |                                         const std::string& log_file_name,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h: In member function 'virtual rocksdb::WalFilter::WalProcessingOption rocksdb::WalFilter::LogRecord(const rocksdb::WriteBatch&, rocksdb::WriteBatch*, bool*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:90:59: warning: unused parameter 'batch' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    90 |   virtual WalProcessingOption LogRecord(const WriteBatch& batch,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:91:53: warning: unused parameter 'new_batch' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    91 |                                         WriteBatch* new_batch,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/wal_filter.h:92:47: warning: unused parameter 'batch_changed' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    92 |                                         bool* batch_changed) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_factory.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:31:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_factory.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:31:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options.cc:32:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options.cc:33:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/compression.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:15:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual void rocksdb::MemTableRep::InsertConcurrently(rocksdb::KeyHandle)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:88:45: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    88 |   virtual void InsertConcurrently(KeyHandle handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h: In member function 'virtual uint64_t rocksdb::MemTableRep::ApproximateNumEntries(const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:120:55: warning: unused parameter 'start_ikey' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   120 |   virtual uint64_t ApproximateNumEntries(const Slice& start_ikey,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/memtablerep.h:121:55: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   121 |                                          const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:17:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::FullMerge(const rocksdb::Slice&, const rocksdb::Slice*, const std::deque<std::__cxx11::basic_string<char> >&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:69:39: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    69 |   virtual bool FullMerge(const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:70:39: warning: unused parameter 'existing_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    70 |                          const Slice* existing_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:71:57: warning: unused parameter 'operand_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |                          const std::deque<std::string>& operand_list,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:72:39: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    72 |                          std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:73:34: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    73 |                          Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::PartialMerge(const rocksdb::Slice&, const rocksdb::Slice&, const rocksdb::Slice&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:42: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:60: warning: unused parameter 'left_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:42: warning: unused parameter 'right_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:70: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                         ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:150:37: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   150 |                             Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:20:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_helper.cc:23:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/plain_table_factory.h: In member function 'virtual rocksdb::Status rocksdb::PlainTableFactory::SanitizeOptions(const rocksdb::DBOptions&, const rocksdb::ColumnFamilyOptions&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/plain_table_factory.h:166:43: warning: unused parameter 'db_opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   166 |   Status SanitizeOptions(const DBOptions& db_opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/plain_table_factory.h:167:53: warning: unused parameter 'cf_opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   167 |                          const ColumnFamilyOptions& cf_opts) const override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/options_parser.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/compression.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_factory.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_factory.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/options_parser.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/options_parser.cc: In member function 'rocksdb::Status rocksdb::RocksDBOptionsParser::EndSection(rocksdb::OptionSection, const string&, const string&, const std::unordered_map<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/options_parser.cc:431:21: warning: loop variable 'pair' creates a copy from type 'const std::pair<const std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >' [-Wrange-loop-construct]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   431 |     for (const auto pair : opt_map) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/options_parser.cc:431:21: note: use reference type to prevent copying
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   431 |     for (const auto pair : opt_map) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     &
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/options_parser.cc: In static member function 'static rocksdb::Status rocksdb::RocksDBOptionsParser::VerifyDBOptions(const rocksdb::DBOptions&, const rocksdb::DBOptions&, const std::unordered_map<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> >*, rocksdb::OptionsSanityCheckLevel)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/options_parser.cc:677:57: warning: unused parameter 'opt_map' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   677 |     const std::unordered_map<std::string, std::string>* opt_map,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/perf_step_timer.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context.cc:8:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:18:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #include "util/autovector.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/random.cc:15:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/random.cc:17:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    17 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/random.cc:17:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/random.cc:17:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/random.cc:15:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:19:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    18 | #include "port/port.h"
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    19 | 
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_context.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:13,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In constructor 'rocksdb::FdWithKeyRange::FdWithKeyRange(rocksdb::FileDescriptor, rocksdb::Slice, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:134:9: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   134 |       : fd(_fd), smallest_key(_smallest_key), largest_key(_largest_key) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |         ^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/table_builder.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/range_del_aggregator.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/merge_helper.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h: In member function 'virtual bool rocksdb::CompactionFilter::FilterMergeOperand(int, const rocksdb::Slice&, const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:39: warning: unused parameter 'level' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:102:59: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   102 |   virtual bool FilterMergeOperand(int level, const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/compaction_filter.h:103:48: warning: unused parameter 'operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   103 |                                   const Slice& operand) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:1:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:     1 | //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/get_context.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::FullMerge(const rocksdb::Slice&, const rocksdb::Slice*, const std::deque<std::__cxx11::basic_string<char> >&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:69:39: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    69 |   virtual bool FullMerge(const Slice& key,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:70:39: warning: unused parameter 'existing_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    70 |                          const Slice* existing_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:71:57: warning: unused parameter 'operand_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |                          const std::deque<std::string>& operand_list,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:72:39: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    72 |                          std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:73:34: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    73 |                          Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h: In member function 'virtual bool rocksdb::MergeOperator::PartialMerge(const rocksdb::Slice&, const rocksdb::Slice&, const rocksdb::Slice&, std::string*, rocksdb::Logger*) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:42: warning: unused parameter 'key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:148:60: warning: unused parameter 'left_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   148 |   virtual bool PartialMerge(const Slice& key, const Slice& left_operand,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:42: warning: unused parameter 'right_operand' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:149:70: warning: unused parameter 'new_value' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   149 |                             const Slice& right_operand, std::string* new_value,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                         ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/merge_operator.h:150:37: warning: unused parameter 'logger' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   150 |                             Logger* logger) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/get_context.cc: In member function 'void rocksdb::GetContext::SaveValue(const rocksdb::Slice&, rocksdb::SequenceNumber)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/get_context.cc:72:63: warning: unused parameter 'seq' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    72 | void GetContext::SaveValue(const Slice& value, SequenceNumber seq) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int&; _U2 = rocksdb::FileMetaData; typename std::enable_if<(std::_PCC<true, _T1, _T2>::_MoveConstructiblePair<_U1, _U2>() && std::_PCC<true, _T1, _T2>::_ImplicitlyMoveConvertiblePair<_U1, _U2>()), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, rocksdb::FileMetaData}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:196:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:353:42: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(rocksdb::FileMetaData&&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   353 |         : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/range_del_aggregator.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/merge_helper.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:7:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h: In instantiation of 'constexpr std::pair<_T1, _T2>::pair(_U1&&, const _T2&) [with _U1 = int&; typename std::enable_if<std::_PCC<true, _T1, _T2>::_MoveCopyPair<true, _U1, _T2>(), bool>::type <anonymous> = true; _T1 = int; _T2 = rocksdb::FileMetaData]':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/ext/new_allocator.h:162:4:   required from 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/alloc_traits.h:516:17:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = std::pair<int, rocksdb::FileMetaData>; _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/vector.tcc:115:30:   required from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, const rocksdb::FileMetaData&}; _Tp = std::pair<int, rocksdb::FileMetaData>; _Alloc = std::allocator<std::pair<int, rocksdb::FileMetaData> >]'
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:201:28:   required from here
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:64:8: warning: implicitly-declared 'constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)' is deprecated [-Wdeprecated-copy]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 | struct FileMetaData {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |        ^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/version_edit.h:47:19: note: because 'rocksdb::FileDescriptor' has user-provided 'rocksdb::FileDescriptor& rocksdb::FileDescriptor::operator=(const rocksdb::FileDescriptor&)'
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    47 |   FileDescriptor& operator=(const FileDescriptor& fd) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                   ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/bits/char_traits.h:39,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from /usr/include/c++/11/string:40,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/get_context.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/bits/stl_pair.h:323:41: note: synthesized method 'rocksdb::FileMetaData::FileMetaData(const rocksdb::FileMetaData&)' first required here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   323 |        : first(std::forward<_U1>(__x)), second(__y) { }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/iterator.cc:10:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/iterator.cc:11:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc: In member function 'virtual void rocksdb::{anonymous}::EmptyIterator::Seek(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc:65:34: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Seek(const Slice& target) override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc: In member function 'virtual void rocksdb::{anonymous}::EmptyIterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc:66:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   virtual void SeekForPrev(const Slice& target) override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc: In member function 'virtual void rocksdb::{anonymous}::EmptyInternalIterator::Seek(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc:89:34: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    89 |   virtual void Seek(const Slice& target) override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc: In member function 'virtual void rocksdb::{anonymous}::EmptyInternalIterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/iterator.cc:90:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    90 |   virtual void SeekForPrev(const Slice& target) override {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:23:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/internal_iterator.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/pinned_iterators_manager.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:16:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/perf_step_timer.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:23:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:7,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/stop_watch.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_step_timer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/perf_context_imp.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/merger.cc:23:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   205 | #if ROCKSDB_SUPPORT_THREAD_LOCAL
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:205:5: warning: this use of "defined" may not be portable [-Wexpansion-to-defined]
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:14,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/builder.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/coding.h:21,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/compression.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                               ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::XPRESS_Uncompress(const char*, size_t, int*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:44: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:709:63: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   709 | inline char* XPRESS_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                        ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:710:8: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   710 |   int* decompress_size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |   ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::ZSTD_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:720:71: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   720 | inline bool ZSTD_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                           ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:721:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   721 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:722:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   722 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::ZSTD_Uncompress(const char*, size_t, int*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:756:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   756 | inline char* ZSTD_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:757:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   757 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:758:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   758 |                              const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/table.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_reader.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual void rocksdb::InternalIterator::SetPinnedItersMgr(rocksdb::PinnedIteratorsManager*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:77:58: warning: unused parameter 'pinned_iters_mgr' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    77 |   virtual void SetPinnedItersMgr(PinnedIteratorsManager* pinned_iters_mgr) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h: In member function 'virtual rocksdb::Status rocksdb::InternalIterator::GetProperty(std::string, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:42: warning: unused parameter 'prop_name' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/internal_iterator.h:94:66: warning: unused parameter 'prop' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    94 |   virtual Status GetProperty(std::string prop_name, std::string* prop) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/block_based_table_reader.h:24,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::InternalIterator* rocksdb::TableReader::NewRangeTombstoneIterator(const rocksdb::ReadOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:46:26: warning: unused parameter 'read_options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    46 |       const ReadOptions& read_options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual void rocksdb::TableReader::Prepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:65:37: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    65 |   virtual void Prepare(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                        ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h: In member function 'virtual rocksdb::Status rocksdb::TableReader::DumpTable(rocksdb::WritableFile*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/table_reader.h:97:42: warning: unused parameter 'out_file' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    97 |   virtual Status DumpTable(WritableFile* out_file) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/statistics.h:17,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/persistent_cache_helper.h:10,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/format.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h: At global scope:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:66:16: error: 'function' in namespace 'std' does not name a template type
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    66 |   typedef std::function<void(void*, void*)> FoldFunc;
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:1:1: note: 'std::function' is defined in header '<functional>'; did you forget to '#include <functional>'?
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   +++ |+#include <functional>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:     1 | //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:71:13: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    71 |   void Fold(FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |             ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/thread_local.h:142:28: error: 'FoldFunc' has not been declared
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   142 |     void Fold(uint32_t id, FoldFunc func, void* res);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/meta_blocks.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h: In function 'uint32_t rocksdb::GetCompressFormatForVersion(rocksdb::CompressionType, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/format.h:74:61: warning: unused parameter 'compression_type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    74 | inline uint32_t GetCompressFormatForVersion(CompressionType compression_type,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/meta_blocks.cc:13:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h: In constructor 'rocksdb::BlockReadAmpBitmap::BlockReadAmpBitmap(size_t, size_t, rocksdb::Statistics*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/table/block.h:64:11: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct std::atomic<unsigned int>' with no trivial copy-assignment; use value-initialization instead [-Wclass-memaccess]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    64 |     memset(bitmap_, 0, bitmap_size * kBytesPersEntry);
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/write_buffer_manager.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/options.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/meta_blocks.cc:5:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: /usr/include/c++/11/atomic:845:12: note: 'struct std::atomic<unsigned int>' declared here
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   845 |     struct atomic<unsigned int> : __atomic_base<unsigned int>
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |            ^~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/sst_file_writer.h:8,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::NewRandomRWFile(const string&, std::unique_ptr<rocksdb::RandomRWFile>*, const rocksdb::EnvOptions&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:177:53: warning: unused parameter 'fname' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   177 |   virtual Status NewRandomRWFile(const std::string& fname,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:178:60: warning: unused parameter 'result' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   178 |                                  unique_ptr<RandomRWFile>* result,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:179:52: warning: unused parameter 'options' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   179 |                                  const EnvOptions& options) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::LinkFile(const string&, const string&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:46: warning: unused parameter 'src' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:239:70: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |   virtual Status LinkFile(const std::string& src, const std::string& target) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                   ~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual int rocksdb::Env::UnSchedule(void*, rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:32: warning: unused parameter 'arg' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:290:46: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |   virtual int UnSchedule(void* arg, Priority pri) { return 0; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                     ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual unsigned int rocksdb::Env::GetThreadPoolQueueLen(rocksdb::Env::Priority) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:300:55: warning: unused parameter 'pri' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   300 |   virtual unsigned int GetThreadPoolQueueLen(Priority pri = LOW) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                              ~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::Env::LowerThreadPoolIOPriority(rocksdb::Env::Priority)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:351:51: warning: unused parameter 'pool' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   351 |   virtual void LowerThreadPoolIOPriority(Priority pool = LOW) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::Env::GetThreadList(std::vector<rocksdb::ThreadStatus>*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:371:59: warning: unused parameter 'thread_list' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   371 |   virtual Status GetThreadList(std::vector<ThreadStatus>* thread_list) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::SequentialFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:429:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   429 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::RandomAccessFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:477:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   477 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual void rocksdb::RandomAccessFile::Hint(rocksdb::RandomAccessFile::AccessPattern)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:484:35: warning: unused parameter 'pattern' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   484 |   virtual void Hint(AccessPattern pattern) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                     ~~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::RandomAccessFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:489:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   489 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Truncate(uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:533:36: warning: unused parameter 'size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   533 |   virtual Status Truncate(uint64_t size) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual size_t rocksdb::WritableFile::GetUniqueId(char*, size_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:36: warning: unused parameter 'id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~^~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:594:47: warning: unused parameter 'max_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   594 |   virtual size_t GetUniqueId(char* id, size_t max_size) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                        ~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::InvalidateCache(size_t, size_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:41: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:602:56: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   602 |   virtual Status InvalidateCache(size_t offset, size_t length) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::RangeSync(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:37: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:612:54: warning: unused parameter 'nbytes' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   612 |   virtual Status RangeSync(uint64_t offset, uint64_t nbytes) { return Status::OK(); }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                             ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h: In member function 'virtual rocksdb::Status rocksdb::WritableFile::Allocate(uint64_t, uint64_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:36: warning: unused parameter 'offset' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/env.h:642:53: warning: unused parameter 'len' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   642 |   virtual Status Allocate(uint64_t offset, uint64_t len) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                            ~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/options.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/sst_file_writer.h:9,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:6:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h: In member function 'virtual void rocksdb::EventListener::OnColumnFamilyHandleDeletionStarted(rocksdb::ColumnFamilyHandle*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/listener.h:291:72: warning: unused parameter 'handle' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   291 |   virtual void OnColumnFamilyHandleDeletionStarted(ColumnFamilyHandle* handle) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                    ~~~~~~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/db.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h: In member function 'virtual void rocksdb::Iterator::SeekForPrev(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/iterator.h:75:41: warning: unused parameter 'target' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    75 |   virtual void SeekForPrev(const Slice& target) {}
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/transaction_log.h:11,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/db.h:25,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:15,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::DeleteRangeCF(uint32_t, const rocksdb::Slice&, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:212:43: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 |     virtual Status DeleteRangeCF(uint32_t column_family_id,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:47: warning: unused parameter 'begin_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                  ~~~~~~~~~~~~~^~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:213:71: warning: unused parameter 'end_key' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                                  const Slice& begin_key, const Slice& end_key) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                          ~~~~~~~~~~~~~^~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkEndPrepare(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:235:48: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   235 |     virtual Status MarkEndPrepare(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                   ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkRollback(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:239:46: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   239 |     virtual Status MarkRollback(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                 ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h: In member function 'virtual rocksdb::Status rocksdb::WriteBatch::Handler::MarkCommit(const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/write_batch.h:244:44: warning: unused parameter 'xid' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   244 |     virtual Status MarkCommit(const Slice& xid) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~~^~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h: In member function 'virtual rocksdb::FilterBitsReader* rocksdb::FilterPolicy::GetFilterBitsReader(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/filter_policy.h:105:62: warning: unused parameter 'contents' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   105 |   virtual FilterBitsReader* GetFilterBitsReader(const Slice& contents) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                 ~~~~~~~~~~~~~^~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/db/dbformat.h:18,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h: In member function 'virtual bool rocksdb::SliceTransform::SameResultWhenAppended(const rocksdb::Slice&) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/slice_transform.h:86:52: warning: unused parameter 'prefix' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    86 |   virtual bool SameResultWhenAppended(const Slice& prefix) const {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                       ~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/include/rocksdb/cache.h:28,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/include/rocksdb/table.h:23,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/db/dbformat.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:9:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h: In member function 'virtual std::string rocksdb::Statistics::getHistogramString(uint32_t) const':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/include/rocksdb/statistics.h:428:51: warning: unused parameter 'type' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   428 |   virtual std::string getHistogramString(uint32_t type) const { return ""; }
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/table/table_builder.h:16,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:11:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h: In member function 'virtual rocksdb::IntTblPropCollector* rocksdb::InternalKeyPropertiesCollectorFactory::CreateIntTblPropCollector(uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/db/table_properties_collector.h:76:16: warning: unused parameter 'column_family_id' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:    76 |       uint32_t column_family_id) override {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |       ~~~~~~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: In file included from rocksdb/util/cf_options.h:12,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/table_builder.h:19,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/block_based_table_builder.h:20,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:                  from rocksdb/table/sst_file_writer.cc:11:
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Snappy_Compress(const rocksdb::CompressionOptions&, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:154:55: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   154 | inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::Zlib_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:212:53: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   212 | inline bool Zlib_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:36: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:213:73: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   213 |                           uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:34: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:214:57: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   214 |                           size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                          ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:215:40: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   215 |                           const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                           ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::Zlib_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&, int)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:42: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:286:61: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   286 | inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                      ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:287:35: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   287 |                              int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:288:39: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   288 |                              uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:289:43: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   289 |                              const Slice& compression_dict = Slice(),
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:290:34: warning: unused parameter 'windowBits' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   290 |                              int windowBits = -14) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                              ~~~~^~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::BZip2_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:384:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   384 | inline bool BZip2_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:385:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   385 |                            uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:40: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:386:54: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   386 |                            const char* input, size_t length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                               ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:387:43: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   387 |                            ::std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::BZip2_Uncompress(const char*, size_t, int*, uint32_t)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:43: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:442:62: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   442 | inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                       ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:443:36: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   443 |                               int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:444:40: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   444 |                               uint32_t compress_format_version) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                               ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, rocksdb::Slice)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:523:52: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   523 | inline bool LZ4_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:35: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:524:72: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   524 |                          uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                            ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:33: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:525:56: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   525 |                          size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                         ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:526:38: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   526 |                          const Slice compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'char* rocksdb::LZ4_Uncompress(const char*, size_t, int*, uint32_t, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:41: warning: unused parameter 'input_data' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:580:60: warning: unused parameter 'input_length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   580 | inline char* LZ4_Uncompress(const char* input_data, size_t input_length,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                     ~~~~~~~^~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:581:34: warning: unused parameter 'decompress_size' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   581 |                             int* decompress_size,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~^~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:582:38: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   582 |                             uint32_t compress_format_version,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:583:42: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   583 |                             const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::LZ4HC_Compress(const rocksdb::CompressionOptions&, uint32_t, const char*, size_t, std::string*, const rocksdb::Slice&)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:636:54: warning: unused parameter 'opts' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   636 | inline bool LZ4HC_Compress(const CompressionOptions& opts,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:37: warning: unused parameter 'compress_format_version' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:637:74: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   637 |                            uint32_t compress_format_version, const char* input,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                              ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:35: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:638:58: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   638 |                            size_t length, ::std::string* output,
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                           ~~~~~~~~~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:639:41: warning: unused parameter 'compression_dict' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   639 |                            const Slice& compression_dict = Slice()) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h: In function 'bool rocksdb::XPRESS_Compress(const char*, size_t, std::string*)':
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:41: warning: unused parameter 'input' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                             ~~~~~~~~~~~~^~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:55: warning: unused parameter 'length' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[INFO] [stderr] warning: librocksdb-sys@0.4.1:       |                                                ~~~~~~~^~~~~~
[INFO] [stderr] warning: librocksdb-sys@0.4.1: rocksdb/util/compression.h:702:76: warning: unused parameter 'output' [-Wunused-parameter]
[INFO] [stderr] warning: librocksdb-sys@0.4.1:   702 | inline bool XPRESS_Compress(const char* input, size_t length, std::string* output) {
[WARN] too many lines in the log, truncating it
