[INFO] fetching crate bitcoinleveldb-memtable 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-memtable-0.1.16-alpha.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate bitcoinleveldb-memtable 0.1.16-alpha.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-memtable 0.1.16-alpha.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-memtable 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-memtable 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-memtable 0.1.16-alpha.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20d29b217e0ba87cdcd0e7ca12f20cfc8c0bc140a83ece4653065f8131d331f4
[INFO] running `Command { std: "docker" "start" "-a" "20d29b217e0ba87cdcd0e7ca12f20cfc8c0bc140a83ece4653065f8131d331f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20d29b217e0ba87cdcd0e7ca12f20cfc8c0bc140a83ece4653065f8131d331f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d29b217e0ba87cdcd0e7ca12f20cfc8c0bc140a83ece4653065f8131d331f4", kill_on_drop: false }`
[INFO] [stdout] 20d29b217e0ba87cdcd0e7ca12f20cfc8c0bc140a83ece4653065f8131d331f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd304ed2414fdfd3875ff4875b29ef0020639628accfbed2fcd55fa79e5e30e1
[INFO] running `Command { std: "docker" "start" "-a" "cd304ed2414fdfd3875ff4875b29ef0020639628accfbed2fcd55fa79e5e30e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling cpp_macros v0.5.9
[INFO] [stderr]    Compiling qttypes v0.2.11
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling qmetaobject v0.2.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling quanta v0.9.3
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling atomic-take v1.1.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling comparator v0.3.0
[INFO] [stderr]    Compiling bitset v0.1.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling integer-encoding v3.0.4
[INFO] [stderr]     Checking libc v0.2.151
[INFO] [stderr]     Checking crossbeam-utils v0.8.17
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking sqlite3-src v0.2.12
[INFO] [stderr]     Checking memoffset v0.9.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking siphasher v0.3.11
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking lock_api v0.4.11
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking memoffset v0.6.5
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking poison v0.1.0
[INFO] [stderr]     Checking time-point v0.1.1
[INFO] [stderr]     Checking shared-mutex v0.3.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.16
[INFO] [stderr]     Checking crossbeam-channel v0.5.9
[INFO] [stderr]     Checking crossbeam-queue v0.3.9
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking multiset v0.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling cpp v0.5.9
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking cpp_core v0.6.0
[INFO] [stderr]     Checking sqlite3-sys v0.12.0
[INFO] [stderr]     Checking openssl-sys v0.9.98
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ahash v0.7.7
[INFO] [stderr]     Checking sqlite v0.25.3
[INFO] [stderr]     Checking sqlite3 v0.24.0
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking pnet_sys v0.31.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking libc-stdhandle v0.1.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking priority-queue v1.3.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling libevent-sys v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling qt_macros v0.1.1
[INFO] [stderr]    Compiling qmetaobject_impl v0.2.10
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]    Compiling delegate v0.7.0
[INFO] [stderr]    Compiling try-catch v0.2.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking deranged v0.3.10
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling serde-big-array v0.4.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]    Compiling ritual_common v0.4.0
[INFO] [stderr]    Compiling modular-bitfield v0.11.2
[INFO] [stderr]    Compiling qt_ritual_common v0.4.0
[INFO] [stderr]    Compiling ritual_build v0.4.0
[INFO] [stderr]    Compiling qt_ritual_build v0.5.0
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling qt_gui v0.5.0
[INFO] [stderr]    Compiling libevent v0.1.0
[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-slice v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-status v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-util v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-comparator v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-filter v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-key v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-rand v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-file v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-log v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-cache v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-env v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-snapshot v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-arena v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-options v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-skiplist v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-table v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-memtable v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/memtable.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(c: &InternalKeyComparator) -> Self {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aptr`
[INFO] [stdout]   --> src/memtable.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         aptr: *const u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_aptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bptr`
[INFO] [stdout]   --> src/memtable.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         bptr: *const u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_bptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comparator`
[INFO] [stdout]   --> src/memtable.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn new(comparator: &InternalKeyComparator) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comparator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/memtable.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         s:     SequenceNumber,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/memtable.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         ty:    ValueType,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/memtable.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         key_:   &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/memtable.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         value: &Slice)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/memtable.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         key_:   &LookupKey,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/memtable.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         value: *mut String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/memtable.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         s:     *mut Status) -> bool {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table`
[INFO] [stdout]    --> src/memtable.rs:244:16
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn new(table: *mut MemTableTable) -> Self {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_table`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/memtable.rs:260:28
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn seek(&mut self, k: &Slice)  {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/memtable.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(c: &InternalKeyComparator) -> Self {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memtable.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 |         scratch: *mut String,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/memtable.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |         target:  &Slice) -> *const u8 {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memtable.rs:347:34
[INFO] [stdout]     |
[INFO] [stdout] 347 | pub fn get_length_prefixed_slice(data: *const u8) -> Slice {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aptr`
[INFO] [stdout]   --> src/memtable.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         aptr: *const u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_aptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmp`
[INFO] [stdout]    --> src/memtable.rs:375:16
[INFO] [stdout]     |
[INFO] [stdout] 375 |     pub fn new(cmp: Box<dyn SliceComparator>) -> Self {
[INFO] [stdout]     |                ^^^ help: if this is intentional, prefix it with an underscore: `_cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bptr`
[INFO] [stdout]   --> src/memtable.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         bptr: *const u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_bptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comparator`
[INFO] [stdout]   --> src/memtable.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn new(comparator: &InternalKeyComparator) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comparator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/memtable.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |         options: &Options,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memtable.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         data:    &KVMap) -> Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/memtable.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         s:     SequenceNumber,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/memtable.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         ty:    ValueType,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/memtable.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         key_:   &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/memtable.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         value: &Slice)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_`
[INFO] [stdout]    --> src/memtable.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         key_:   &LookupKey,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/memtable.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         value: *mut String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/memtable.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         s:     *mut Status) -> bool {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table`
[INFO] [stdout]    --> src/memtable.rs:244:16
[INFO] [stdout]     |
[INFO] [stdout] 244 |     pub fn new(table: *mut MemTableTable) -> Self {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_table`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/memtable.rs:260:28
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn seek(&mut self, k: &Slice)  {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/memtable.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         val:  u64,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]    --> src/memtable.rs:447:9
[INFO] [stdout]     |
[INFO] [stdout] 447 |         low:  u64,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `high`
[INFO] [stdout]    --> src/memtable.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |         high: u64) -> bool {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memtable.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 |         scratch: *mut String,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/memtable.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |         target:  &Slice) -> *const u8 {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memtable.rs:347:34
[INFO] [stdout]     |
[INFO] [stdout] 347 | pub fn get_length_prefixed_slice(data: *const u8) -> Slice {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmp`
[INFO] [stdout]    --> src/memtable.rs:375:16
[INFO] [stdout]     |
[INFO] [stdout] 375 |     pub fn new(cmp: Box<dyn SliceComparator>) -> Self {
[INFO] [stdout]     |                ^^^ help: if this is intentional, prefix it with an underscore: `_cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `comparator`, `refs`, `arena`, and `table` are never read
[INFO] [stdout]   --> src/memtable.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct MemTable {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 7  |     comparator: MemTableKeyComparator,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 8  |     refs:       i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     arena:      Arena,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     table:      MemTableTable,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comparator` is never read
[INFO] [stdout]   --> src/memtable.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MemTableKeyComparator {
[INFO] [stdout]    |            --------------------- field in this struct
[INFO] [stdout] 14 |     comparator: InternalKeyComparator,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `iter`, and `tmp` are never read
[INFO] [stdout]    --> src/memtable.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct MemTableIterator {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 233 |     base: LevelDBIterator,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 234 |     iter: LevelDBIterator,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     tmp:  String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/memtable.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |         options: &Options,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `internal_comparator`, and `memtable` are never read
[INFO] [stdout]    --> src/memtable.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct MemTableConstructor {
[INFO] [stdout]     |        ------------------- fields in this struct
[INFO] [stdout] 359 |     base:                Constructor,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 360 |     internal_comparator: InternalKeyComparator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 361 |     memtable:            *mut MemTable,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memtable.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         data:    &KVMap) -> Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `finish_impl`, and `new_iterator` are never used
[INFO] [stdout]    --> src/memtable.rs:375:12
[INFO] [stdout]     |
[INFO] [stdout] 373 | impl MemTableConstructor {
[INFO] [stdout]     | ------------------------ associated items in this implementation
[INFO] [stdout] 374 |
[INFO] [stdout] 375 |     pub fn new(cmp: Box<dyn SliceComparator>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 387 |     pub fn finish_impl(&mut self, 
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |     pub fn new_iterator(&self) -> *mut LevelDBIterator {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MemTableTest` is never constructed
[INFO] [stdout]    --> src/memtable.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 414 | struct MemTableTest {}
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/memtable.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         val:  u64,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `between` is never used
[INFO] [stdout]    --> src/memtable.rs:445:4
[INFO] [stdout]     |
[INFO] [stdout] 445 | fn between(
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `low`
[INFO] [stdout]    --> src/memtable.rs:447:9
[INFO] [stdout]     |
[INFO] [stdout] 447 |         low:  u64,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_low`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `high`
[INFO] [stdout]    --> src/memtable.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |         high: u64) -> bool {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_high`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `comparator`, `refs`, `arena`, and `table` are never read
[INFO] [stdout]   --> src/memtable.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct MemTable {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 7  |     comparator: MemTableKeyComparator,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 8  |     refs:       i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     arena:      Arena,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     table:      MemTableTable,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comparator` is never read
[INFO] [stdout]   --> src/memtable.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MemTableKeyComparator {
[INFO] [stdout]    |            --------------------- field in this struct
[INFO] [stdout] 14 |     comparator: InternalKeyComparator,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `iter`, and `tmp` are never read
[INFO] [stdout]    --> src/memtable.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct MemTableIterator {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 233 |     base: LevelDBIterator,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 234 |     iter: LevelDBIterator,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     tmp:  String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base`, `internal_comparator`, and `memtable` are never read
[INFO] [stdout]    --> src/memtable.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct MemTableConstructor {
[INFO] [stdout]     |        ------------------- fields in this struct
[INFO] [stdout] 359 |     base:                Constructor,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 360 |     internal_comparator: InternalKeyComparator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 361 |     memtable:            *mut MemTable,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `finish_impl`, and `new_iterator` are never used
[INFO] [stdout]    --> src/memtable.rs:375:12
[INFO] [stdout]     |
[INFO] [stdout] 373 | impl MemTableConstructor {
[INFO] [stdout]     | ------------------------ associated items in this implementation
[INFO] [stdout] 374 |
[INFO] [stdout] 375 |     pub fn new(cmp: Box<dyn SliceComparator>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 387 |     pub fn finish_impl(&mut self, 
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |     pub fn new_iterator(&self) -> *mut LevelDBIterator {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MemTableTest` is never constructed
[INFO] [stdout]    --> src/memtable.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 414 | struct MemTableTest {}
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `between` is never used
[INFO] [stdout]    --> src/memtable.rs:445:4
[INFO] [stdout]     |
[INFO] [stdout] 445 | fn between(
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "cd304ed2414fdfd3875ff4875b29ef0020639628accfbed2fcd55fa79e5e30e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd304ed2414fdfd3875ff4875b29ef0020639628accfbed2fcd55fa79e5e30e1", kill_on_drop: false }`
[INFO] [stdout] cd304ed2414fdfd3875ff4875b29ef0020639628accfbed2fcd55fa79e5e30e1
