[INFO] fetching crate bitcoinleveldb-version 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-version-0.1.16-alpha.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate bitcoinleveldb-version 0.1.16-alpha.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-version 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-version 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-version 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-version 0.1.16-alpha.0 written to /workspace/builds/worker-5-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]     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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c3be1ae0ffc8e53af220a8dadd6f5cf01e681223a7a3785a92d0b2570a3d5b7e
[INFO] running `Command { std: "docker" "start" "-a" "c3be1ae0ffc8e53af220a8dadd6f5cf01e681223a7a3785a92d0b2570a3d5b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3be1ae0ffc8e53af220a8dadd6f5cf01e681223a7a3785a92d0b2570a3d5b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3be1ae0ffc8e53af220a8dadd6f5cf01e681223a7a3785a92d0b2570a3d5b7e", kill_on_drop: false }`
[INFO] [stdout] c3be1ae0ffc8e53af220a8dadd6f5cf01e681223a7a3785a92d0b2570a3d5b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f5c3be62f0e6b1ab186b577644254091240d9ce185700a461fc1abb38441456b
[INFO] running `Command { std: "docker" "start" "-a" "f5c3be62f0e6b1ab186b577644254091240d9ce185700a461fc1abb38441456b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling termcolor v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling dunce v1.0.4
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling sqlite3-src v0.2.12
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling libc-stdhandle v0.1.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.16
[INFO] [stderr]    Compiling cpp_core v0.6.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling sqlite3-sys v0.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.9
[INFO] [stderr]    Compiling crossbeam-queue v0.3.9
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling poison v0.1.0
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling shared-mutex v0.3.1
[INFO] [stderr]    Compiling sqlite v0.25.3
[INFO] [stderr]    Compiling sqlite3 v0.24.0
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling pnet_sys v0.31.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling time-point v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling atomic v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitset v0.1.2
[INFO] [stderr]    Compiling integer-encoding v3.0.4
[INFO] [stderr]    Compiling multiset v0.0.5
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling comparator v0.3.0
[INFO] [stderr]    Compiling atomic-take v1.1.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=ae6aa2c2f8052eb0 -C extra-filename=-ae6aa2c2f8052eb0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-95abaf13eaff7f64.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5f6dfde12cae4cc3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f8d62a079c79a15a.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f5c3be62f0e6b1ab186b577644254091240d9ce185700a461fc1abb38441456b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c3be62f0e6b1ab186b577644254091240d9ce185700a461fc1abb38441456b", kill_on_drop: false }`
[INFO] [stdout] f5c3be62f0e6b1ab186b577644254091240d9ce185700a461fc1abb38441456b
[INFO] checking bitcoinleveldb-version-0.1.16-alpha.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate bitcoinleveldb-version 0.1.16-alpha.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-version 0.1.16-alpha.0 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-version 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-version 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-version 0.1.16-alpha.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb973581be74368c7eb88da1c4c2565e2d88f99f2fdc1078b6ec89ba810283d1
[INFO] running `Command { std: "docker" "start" "-a" "fb973581be74368c7eb88da1c4c2565e2d88f99f2fdc1078b6ec89ba810283d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb973581be74368c7eb88da1c4c2565e2d88f99f2fdc1078b6ec89ba810283d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb973581be74368c7eb88da1c4c2565e2d88f99f2fdc1078b6ec89ba810283d1", kill_on_drop: false }`
[INFO] [stdout] fb973581be74368c7eb88da1c4c2565e2d88f99f2fdc1078b6ec89ba810283d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c105f8c2d6acedf32bff9e89ef764d932bdad0ac029b32424d5548da08e31538
[INFO] running `Command { std: "docker" "start" "-a" "c105f8c2d6acedf32bff9e89ef764d932bdad0ac029b32424d5548da08e31538", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling termcolor v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling dunce v1.0.4
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
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[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn num_files(&self, level: i32) -> i32 {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vset`
[INFO] [stdout]    --> src/version.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn new(vset: *mut VersionSet) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_vset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         level:   i32) -> *mut LevelDBIterator {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iters`
[INFO] [stdout]    --> src/version.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         iters:   *mut Vec<*mut LevelDBIterator>)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_iters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_key_`
[INFO] [stdout]    --> src/version.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         user_key_:     Slice,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/version.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         internal_key_: Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/version.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         arg:          *mut c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/version.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         func:         fn(
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/version.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         k:       &LookupKey,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/version.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         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: `stats`
[INFO] [stdout]    --> src/version.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         stats:   *mut VersionGetStats) -> Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]    --> src/version.rs:333:36
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn update_stats(&mut self, stats: &VersionGetStats) -> bool {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/version.rs:360:42
[INFO] [stdout]     |
[INFO] [stdout] 360 |     pub fn record_read_sample(&mut self, internal_key_: Slice) -> bool {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |         level:             i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest_user_key_`
[INFO] [stdout]    --> src/version.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 442 |         smallest_user_key_: *const Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest_user_key_`
[INFO] [stdout]    --> src/version.rs:443:9
[INFO] [stdout]     |
[INFO] [stdout] 443 |         largest_user_key_:  *const Slice) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest_user_key_`
[INFO] [stdout]    --> src/version.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |         smallest_user_key_: &Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest_user_key_`
[INFO] [stdout]    --> src/version.rs:460:9
[INFO] [stdout]     |
[INFO] [stdout] 460 |         largest_user_key_:  &Slice) -> i32 {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |         level:  i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin`
[INFO] [stdout]    --> src/version.rs:502:9
[INFO] [stdout]     |
[INFO] [stdout] 502 |         begin:  *const InternalKey,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_begin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/version.rs:508:9
[INFO] [stdout]     |
[INFO] [stdout] 508 |         end:    *const InternalKey,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/version.rs:510:9
[INFO] [stdout]     |
[INFO] [stdout] 510 |         inputs: *mut Vec<*mut FileMetaData>)  {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_number`
[INFO] [stdout]    --> src/set.rs:114:41
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn reuse_file_number(&mut self, file_number: u64)  {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/set.rs:140:41
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn set_last_sequence(&mut self, s: u64)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/set.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         dbname:      &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/set.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         options:     *const Options,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table_cache`
[INFO] [stdout]    --> src/set.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         table_cache: *mut TableCache,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_table_cache`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmp`
[INFO] [stdout]    --> src/set.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         cmp:         *const InternalKeyComparator) -> Self {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:216:38
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn append_version(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/set.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         edit: *mut VersionEdit,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]    --> src/set.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         mu:   *mut RawMutex) -> Status {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `save_manifest`
[INFO] [stdout]    --> src/set.rs:346:31
[INFO] [stdout]     |
[INFO] [stdout] 346 |     pub fn recover(&mut self, save_manifest: *mut bool) -> Status {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_save_manifest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dscname`
[INFO] [stdout]    --> src/set.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         dscname: &String,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dscname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dscbase`
[INFO] [stdout]    --> src/set.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         dscbase: &String) -> bool {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dscbase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/set.rs:517:45
[INFO] [stdout]     |
[INFO] [stdout] 517 |     pub fn mark_file_number_used(&mut self, number: u64)  {
[INFO] [stdout]     |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |     pub fn finalize(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `log`
[INFO] [stdout]    --> src/set.rs:573:38
[INFO] [stdout]     |
[INFO] [stdout] 573 |     pub fn write_snapshot(&mut self, log: *mut LogWriter) -> Status {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:612:35
[INFO] [stdout]     |
[INFO] [stdout] 612 |     pub fn num_level_files(&self, level: i32) -> i32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/set.rs:622:33
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn level_summary(&self, scratch: *mut VersionSetLevelSummaryStorage) -> *const u8 {
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:644:9
[INFO] [stdout]     |
[INFO] [stdout] 644 |         v:    *mut Version,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ikey_`
[INFO] [stdout]    --> src/set.rs:645:9
[INFO] [stdout]     |
[INFO] [stdout] 645 |         ikey_: &InternalKey) -> u64 {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ikey_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `live`
[INFO] [stdout]    --> src/set.rs:687:38
[INFO] [stdout]     |
[INFO] [stdout] 687 |     pub fn add_live_files(&mut self, live: *mut HashSet<u64>)  {
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_live`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:708:35
[INFO] [stdout]     |
[INFO] [stdout] 708 |     pub fn num_level_bytes(&self, level: i32) -> i64 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn num_files(&self, level: i32) -> i32 {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/set.rs:752:9
[INFO] [stdout]     |
[INFO] [stdout] 752 |         inputs:   &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vset`
[INFO] [stdout]    --> src/version.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn new(vset: *mut VersionSet) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_vset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest`
[INFO] [stdout]    --> src/set.rs:753:9
[INFO] [stdout]     |
[INFO] [stdout] 753 |         smallest: *mut InternalKey,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest`
[INFO] [stdout]    --> src/set.rs:754:9
[INFO] [stdout]     |
[INFO] [stdout] 754 |         largest:  *mut InternalKey)  {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         level:   i32) -> *mut LevelDBIterator {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs1`
[INFO] [stdout]    --> src/set.rs:786:9
[INFO] [stdout]     |
[INFO] [stdout] 786 |         inputs1:  &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs2`
[INFO] [stdout]    --> src/set.rs:787:9
[INFO] [stdout]     |
[INFO] [stdout] 787 |         inputs2:  &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iters`
[INFO] [stdout]    --> src/version.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         iters:   *mut Vec<*mut LevelDBIterator>)  {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_iters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest`
[INFO] [stdout]    --> src/set.rs:788:9
[INFO] [stdout]     |
[INFO] [stdout] 788 |         smallest: *mut InternalKey,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_key_`
[INFO] [stdout]    --> src/version.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         user_key_:     Slice,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest`
[INFO] [stdout]    --> src/set.rs:789:9
[INFO] [stdout]     |
[INFO] [stdout] 789 |         largest:  *mut InternalKey)  {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/version.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         internal_key_: Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/set.rs:806:43
[INFO] [stdout]     |
[INFO] [stdout] 806 |     pub fn make_input_iterator(&mut self, c: *mut Compaction) -> *mut LevelDBIterator {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/version.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         arg:          *mut c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/set.rs:911:42
[INFO] [stdout]     |
[INFO] [stdout] 911 |     pub fn setup_other_inputs(&mut self, c: *mut Compaction)  {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> src/version.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         func:         fn(
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:984:9
[INFO] [stdout]     |
[INFO] [stdout] 984 |         level: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin`
[INFO] [stdout]    --> src/set.rs:985:9
[INFO] [stdout]     |
[INFO] [stdout] 985 |         begin: *const InternalKey,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_begin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/set.rs:986:9
[INFO] [stdout]     |
[INFO] [stdout] 986 |         end:   *const InternalKey) -> *mut Compaction {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1`
[INFO] [stdout]   --> src/setbuilder.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             f1: *mut FileMetaData,
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_f1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/version.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         options: &ReadOptions,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/version.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         k:       &LookupKey,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> src/setbuilder.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             f2: *mut FileMetaData) -> bool {
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vset`
[INFO] [stdout]   --> src/setbuilder.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         vset: *mut VersionSet,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/version.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         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: `stats`
[INFO] [stdout]    --> src/version.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         stats:   *mut VersionGetStats) -> Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base`
[INFO] [stdout]   --> src/setbuilder.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         base: *mut Version) -> Self {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]    --> src/version.rs:333:36
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn update_stats(&mut self, stats: &VersionGetStats) -> bool {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/setbuilder.rs:112:29
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn apply(&mut self, edit: *mut VersionEdit)  {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/version.rs:360:42
[INFO] [stdout]     |
[INFO] [stdout] 360 |     pub fn record_read_sample(&mut self, internal_key_: Slice) -> bool {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/setbuilder.rs:162:31
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn save_to(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/setbuilder.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         v:     *mut Version,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/setbuilder.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         level: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |         level:             i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/setbuilder.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         f:     *mut FileMetaData)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest_user_key_`
[INFO] [stdout]    --> src/version.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 442 |         smallest_user_key_: *const Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/compaction.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         options: *const Options,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest_user_key_`
[INFO] [stdout]    --> src/version.rs:443:9
[INFO] [stdout]     |
[INFO] [stdout] 443 |         largest_user_key_:  *const Slice) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]   --> src/compaction.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         level:   i32) -> Self {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest_user_key_`
[INFO] [stdout]    --> src/version.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |         smallest_user_key_: &Slice,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest_user_key_`
[INFO] [stdout]    --> src/version.rs:460:9
[INFO] [stdout]     |
[INFO] [stdout] 460 |         largest_user_key_:  &Slice) -> i32 {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/compaction.rs:128:43
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn add_input_deletions(&mut self, edit: *mut VersionEdit)  {
[INFO] [stdout]     |                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_key_`
[INFO] [stdout]    --> src/compaction.rs:146:45
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn is_base_level_for_key(&mut self, user_key_: &Slice) -> bool {
[INFO] [stdout]     |                                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/version.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |         level:  i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/compaction.rs:177:42
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn should_stop_before(&mut self, internal_key_: &Slice) -> bool {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin`
[INFO] [stdout]    --> src/version.rs:502:9
[INFO] [stdout]     |
[INFO] [stdout] 502 |         begin:  *const InternalKey,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_begin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/version.rs:508:9
[INFO] [stdout]     |
[INFO] [stdout] 508 |         end:    *const InternalKey,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/version.rs:510:9
[INFO] [stdout]     |
[INFO] [stdout] 510 |         inputs: *mut Vec<*mut FileMetaData>)  {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `which`
[INFO] [stdout]    --> src/compaction.rs:254:35
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn num_input_files(&self, which: i32) -> i32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_which`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `which`
[INFO] [stdout]    --> src/compaction.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         which: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_which`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/compaction.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         i:     i32) -> *mut FileMetaData {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_number`
[INFO] [stdout]    --> src/set.rs:114:41
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn reuse_file_number(&mut self, file_number: u64)  {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/set.rs:140:41
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn set_last_sequence(&mut self, s: u64)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/set.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         dbname:      &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]    --> src/set.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         options:     *const Options,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table_cache`
[INFO] [stdout]    --> src/set.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         table_cache: *mut TableCache,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_table_cache`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmp`
[INFO] [stdout]    --> src/set.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         cmp:         *const InternalKeyComparator) -> Self {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:216:38
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn append_version(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/set.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         edit: *mut VersionEdit,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]    --> src/set.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         mu:   *mut RawMutex) -> Status {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `save_manifest`
[INFO] [stdout]    --> src/set.rs:346:31
[INFO] [stdout]     |
[INFO] [stdout] 346 |     pub fn recover(&mut self, save_manifest: *mut bool) -> Status {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_save_manifest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dscname`
[INFO] [stdout]    --> src/set.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         dscname: &String,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dscname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dscbase`
[INFO] [stdout]    --> src/set.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         dscbase: &String) -> bool {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dscbase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/set.rs:517:45
[INFO] [stdout]     |
[INFO] [stdout] 517 |     pub fn mark_file_number_used(&mut self, number: u64)  {
[INFO] [stdout]     |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |     pub fn finalize(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `log`
[INFO] [stdout]    --> src/set.rs:573:38
[INFO] [stdout]     |
[INFO] [stdout] 573 |     pub fn write_snapshot(&mut self, log: *mut LogWriter) -> Status {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/compaction.rs:374:16
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn new(c: *mut Compaction) -> Self {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/compaction.rs:413:27
[INFO] [stdout]     |
[INFO] [stdout] 413 |     pub fn add(&mut self, c: &CompactionStats)  {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/version.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Version {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     vset:                  *mut VersionSet,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     next:                  *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     prev:                  *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     refs:                  i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     files:                 [Vec<*mut FileMetaData>; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     file_to_compact:       *mut FileMetaData,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |
[INFO] [stdout] 57 |     file_to_compact_level: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     compaction_score:      f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     compaction_level:      i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `seek_file` and `seek_file_level` are never read
[INFO] [stdout]    --> src/version.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct VersionGetStats {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 104 |     seek_file:       *mut FileMetaData,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 105 |     seek_file_level: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:612:35
[INFO] [stdout]     |
[INFO] [stdout] 612 |     pub fn num_level_files(&self, level: i32) -> i32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/set.rs:622:33
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn level_summary(&self, scratch: *mut VersionSetLevelSummaryStorage) -> *const u8 {
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/set.rs:644:9
[INFO] [stdout]     |
[INFO] [stdout] 644 |         v:    *mut Version,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/set.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct VersionSet {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 5  |
[INFO] [stdout] 6  |     env:                  Box<dyn Env>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 7  |     dbname:               String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 8  |     options:              *const Options,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     table_cache:          *const TableCache,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 10 |     icmp:                 InternalKeyComparator,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     next_file_number:     u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     manifest_file_number: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     last_sequence:        u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 14 |     log_number:           u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     prev_log_number:      u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     descriptor_file:      *mut dyn WritableFile,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |
[INFO] [stdout] 29 |     descriptor_log:       *mut LogWriter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     dummy_versions:       Version,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     current:              *mut Version,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     compact_pointer:      [String; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ikey_`
[INFO] [stdout]    --> src/set.rs:645:9
[INFO] [stdout]     |
[INFO] [stdout] 645 |         ikey_: &InternalKey) -> u64 {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ikey_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]     --> src/set.rs:1031:5
[INFO] [stdout]      |
[INFO] [stdout] 1030 | pub struct VersionSetLevelSummaryStorage {
[INFO] [stdout]      |            ----------------------------- field in this struct
[INFO] [stdout] 1031 |     buffer: [u8; 100],
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `live`
[INFO] [stdout]    --> src/set.rs:687:38
[INFO] [stdout]     |
[INFO] [stdout] 687 |     pub fn add_live_files(&mut self, live: *mut HashSet<u64>)  {
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_live`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:708:35
[INFO] [stdout]     |
[INFO] [stdout] 708 |     pub fn num_level_bytes(&self, level: i32) -> i64 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vset`, `base`, and `levels` are never read
[INFO] [stdout]   --> src/setbuilder.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct VersionSetBuilder {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 10 |     vset:   *mut VersionSet,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     base:   *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     levels: [version_set_builder::LevelState; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/set.rs:752:9
[INFO] [stdout]     |
[INFO] [stdout] 752 |         inputs:   &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `internal_comparator` is never read
[INFO] [stdout]   --> src/setbuilder.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub struct BySmallestKey {
[INFO] [stdout]    |                ------------- field in this struct
[INFO] [stdout] 25 |         internal_comparator: *const InternalKeyComparator,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest`
[INFO] [stdout]    --> src/set.rs:753:9
[INFO] [stdout]     |
[INFO] [stdout] 753 |         smallest: *mut InternalKey,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest`
[INFO] [stdout]    --> src/set.rs:754:9
[INFO] [stdout]     |
[INFO] [stdout] 754 |         largest:  *mut InternalKey)  {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `deleted_files` and `added_files` are never read
[INFO] [stdout]   --> src/setbuilder.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub struct LevelState {
[INFO] [stdout]    |                ---------- fields in this struct
[INFO] [stdout] 50 |         deleted_files: HashSet<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 51 |         added_files:   *mut FileSet,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs1`
[INFO] [stdout]    --> src/set.rs:786:9
[INFO] [stdout]     |
[INFO] [stdout] 786 |         inputs1:  &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs2`
[INFO] [stdout]    --> src/set.rs:787:9
[INFO] [stdout]     |
[INFO] [stdout] 787 |         inputs2:  &Vec<*mut FileMetaData>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/compaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Compaction {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 9  |
[INFO] [stdout] 10 |     level:                i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     max_output_file_size: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     input_version:        *mut Version,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     edit:                 VersionEdit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     inputs:            [Vec<*mut FileMetaData>; 2],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     grandparents:      Vec<*mut FileMetaData>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     grandparent_index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     seen_key_:          bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     overlapped_bytes:  i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     level_ptrs: [usize; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `smallest`
[INFO] [stdout]    --> src/set.rs:788:9
[INFO] [stdout]     |
[INFO] [stdout] 788 |         smallest: *mut InternalKey,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_smallest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `largest`
[INFO] [stdout]    --> src/set.rs:789:9
[INFO] [stdout]     |
[INFO] [stdout] 789 |         largest:  *mut InternalKey)  {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_largest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/set.rs:806:43
[INFO] [stdout]     |
[INFO] [stdout] 806 |     pub fn make_input_iterator(&mut self, c: *mut Compaction) -> *mut LevelDBIterator {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `level`, `done`, `begin`, `end`, and `tmp_storage` are never read
[INFO] [stdout]    --> src/compaction.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub struct ManualCompaction {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 297 |     level:       i32,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 298 |     done:        bool,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |     begin:       *const InternalKey,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 310 |     end:         *const InternalKey,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     tmp_storage: InternalKey,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/set.rs:911:42
[INFO] [stdout]     |
[INFO] [stdout] 911 |     pub fn setup_other_inputs(&mut self, c: *mut Compaction)  {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/set.rs:984:9
[INFO] [stdout]     |
[INFO] [stdout] 984 |         level: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `compaction`, `smallest_snapshot`, `outputs`, `outfile`, `builder`, and `total_bytes` are never read
[INFO] [stdout]    --> src/compaction.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 319 | pub struct CompactionState {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 320 |
[INFO] [stdout] 321 |     compaction:        *const Compaction,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     smallest_snapshot: SequenceNumber,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 335 |
[INFO] [stdout] 336 |     outputs:           Vec<compaction_state::Output>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 |     outfile:           Rc<RefCell<dyn WritableFile>>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 343 |
[INFO] [stdout] 344 |     builder:           *mut TableBuilder,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 345 |     total_bytes:       u64,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin`
[INFO] [stdout]    --> src/set.rs:985:9
[INFO] [stdout]     |
[INFO] [stdout] 985 |         begin: *const InternalKey,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_begin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/set.rs:986:9
[INFO] [stdout]     |
[INFO] [stdout] 986 |         end:   *const InternalKey) -> *mut Compaction {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `micros`, `bytes_read`, and `bytes_written` are never read
[INFO] [stdout]    --> src/compaction.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 393 | pub struct CompactionStats {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 394 |     micros:        i64,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 395 |     bytes_read:    i64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 396 |     bytes_written: i64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `number`, `file_size`, `smallest`, and `largest` are never read
[INFO] [stdout]    --> src/compaction.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 356 |     pub struct Output {
[INFO] [stdout]     |                ------ fields in this struct
[INFO] [stdout] 357 |         number:    u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 358 |         file_size: u64,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 359 |         smallest:  InternalKey,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 360 |         largest:   InternalKey,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1`
[INFO] [stdout]   --> src/setbuilder.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             f1: *mut FileMetaData,
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_f1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> src/setbuilder.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             f2: *mut FileMetaData) -> bool {
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vset`
[INFO] [stdout]   --> src/setbuilder.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         vset: *mut VersionSet,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base`
[INFO] [stdout]   --> src/setbuilder.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         base: *mut Version) -> Self {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/setbuilder.rs:112:29
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn apply(&mut self, edit: *mut VersionEdit)  {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/setbuilder.rs:162:31
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn save_to(&mut self, v: *mut Version)  {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/setbuilder.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         v:     *mut Version,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/setbuilder.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         level: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/setbuilder.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         f:     *mut FileMetaData)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/compaction.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         options: *const Options,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]   --> src/compaction.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         level:   i32) -> Self {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edit`
[INFO] [stdout]    --> src/compaction.rs:128:43
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn add_input_deletions(&mut self, edit: *mut VersionEdit)  {
[INFO] [stdout]     |                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_edit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_key_`
[INFO] [stdout]    --> src/compaction.rs:146:45
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn is_base_level_for_key(&mut self, user_key_: &Slice) -> bool {
[INFO] [stdout]     |                                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `internal_key_`
[INFO] [stdout]    --> src/compaction.rs:177:42
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn should_stop_before(&mut self, internal_key_: &Slice) -> bool {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_internal_key_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `which`
[INFO] [stdout]    --> src/compaction.rs:254:35
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn num_input_files(&self, which: i32) -> i32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_which`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `which`
[INFO] [stdout]    --> src/compaction.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         which: i32,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_which`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/compaction.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         i:     i32) -> *mut FileMetaData {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/compaction.rs:374:16
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn new(c: *mut Compaction) -> Self {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/compaction.rs:413:27
[INFO] [stdout]     |
[INFO] [stdout] 413 |     pub fn add(&mut self, c: &CompactionStats)  {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/version.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Version {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     vset:                  *mut VersionSet,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     next:                  *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     prev:                  *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     refs:                  i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     files:                 [Vec<*mut FileMetaData>; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     file_to_compact:       *mut FileMetaData,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |
[INFO] [stdout] 57 |     file_to_compact_level: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     compaction_score:      f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     compaction_level:      i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `seek_file` and `seek_file_level` are never read
[INFO] [stdout]    --> src/version.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct VersionGetStats {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 104 |     seek_file:       *mut FileMetaData,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 105 |     seek_file_level: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/set.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct VersionSet {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 5  |
[INFO] [stdout] 6  |     env:                  Box<dyn Env>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 7  |     dbname:               String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 8  |     options:              *const Options,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     table_cache:          *const TableCache,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 10 |     icmp:                 InternalKeyComparator,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     next_file_number:     u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     manifest_file_number: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     last_sequence:        u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 14 |     log_number:           u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     prev_log_number:      u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     descriptor_file:      *mut dyn WritableFile,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |
[INFO] [stdout] 29 |     descriptor_log:       *mut LogWriter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     dummy_versions:       Version,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     current:              *mut Version,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     compact_pointer:      [String; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]     --> src/set.rs:1031:5
[INFO] [stdout]      |
[INFO] [stdout] 1030 | pub struct VersionSetLevelSummaryStorage {
[INFO] [stdout]      |            ----------------------------- field in this struct
[INFO] [stdout] 1031 |     buffer: [u8; 100],
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vset`, `base`, and `levels` are never read
[INFO] [stdout]   --> src/setbuilder.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct VersionSetBuilder {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 10 |     vset:   *mut VersionSet,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     base:   *mut Version,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     levels: [version_set_builder::LevelState; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `internal_comparator` is never read
[INFO] [stdout]   --> src/setbuilder.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub struct BySmallestKey {
[INFO] [stdout]    |                ------------- field in this struct
[INFO] [stdout] 25 |         internal_comparator: *const InternalKeyComparator,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `deleted_files` and `added_files` are never read
[INFO] [stdout]   --> src/setbuilder.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub struct LevelState {
[INFO] [stdout]    |                ---------- fields in this struct
[INFO] [stdout] 50 |         deleted_files: HashSet<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 51 |         added_files:   *mut FileSet,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/compaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Compaction {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 9  |
[INFO] [stdout] 10 |     level:                i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     max_output_file_size: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     input_version:        *mut Version,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     edit:                 VersionEdit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     inputs:            [Vec<*mut FileMetaData>; 2],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     grandparents:      Vec<*mut FileMetaData>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     grandparent_index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     seen_key_:          bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     overlapped_bytes:  i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     level_ptrs: [usize; NUM_LEVELS],
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `level`, `done`, `begin`, `end`, and `tmp_storage` are never read
[INFO] [stdout]    --> src/compaction.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub struct ManualCompaction {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 297 |     level:       i32,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 298 |     done:        bool,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |     begin:       *const InternalKey,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 310 |     end:         *const InternalKey,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     tmp_storage: InternalKey,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `compaction`, `smallest_snapshot`, `outputs`, `outfile`, `builder`, and `total_bytes` are never read
[INFO] [stdout]    --> src/compaction.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 319 | pub struct CompactionState {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 320 |
[INFO] [stdout] 321 |     compaction:        *const Compaction,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     smallest_snapshot: SequenceNumber,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 335 |
[INFO] [stdout] 336 |     outputs:           Vec<compaction_state::Output>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 |     outfile:           Rc<RefCell<dyn WritableFile>>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 343 |
[INFO] [stdout] 344 |     builder:           *mut TableBuilder,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 345 |     total_bytes:       u64,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `micros`, `bytes_read`, and `bytes_written` are never read
[INFO] [stdout]    --> src/compaction.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 393 | pub struct CompactionStats {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 394 |     micros:        i64,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 395 |     bytes_read:    i64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 396 |     bytes_written: i64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `number`, `file_size`, `smallest`, and `largest` are never read
[INFO] [stdout]    --> src/compaction.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 356 |     pub struct Output {
[INFO] [stdout]     |                ------ fields in this struct
[INFO] [stdout] 357 |         number:    u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 358 |         file_size: u64,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 359 |         smallest:  InternalKey,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 360 |         largest:   InternalKey,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 89 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 89 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "c105f8c2d6acedf32bff9e89ef764d932bdad0ac029b32424d5548da08e31538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c105f8c2d6acedf32bff9e89ef764d932bdad0ac029b32424d5548da08e31538", kill_on_drop: false }`
[INFO] [stdout] c105f8c2d6acedf32bff9e89ef764d932bdad0ac029b32424d5548da08e31538
