[INFO] fetching crate codec2 0.2.0...
[INFO] testing codec2-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate codec2 0.2.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate codec2 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate codec2 0.2.0
[INFO] finished tweaking crates.io crate codec2 0.2.0
[INFO] tweaked toml for crates.io crate codec2 0.2.0 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c37bd68572eb2523143d7276afc5aedc419e148fc6cf9cef824cc75f56b52f8a
[INFO] running `Command { std: "docker" "start" "-a" "c37bd68572eb2523143d7276afc5aedc419e148fc6cf9cef824cc75f56b52f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c37bd68572eb2523143d7276afc5aedc419e148fc6cf9cef824cc75f56b52f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37bd68572eb2523143d7276afc5aedc419e148fc6cf9cef824cc75f56b52f8a", kill_on_drop: false }`
[INFO] [stdout] c37bd68572eb2523143d7276afc5aedc419e148fc6cf9cef824cc75f56b52f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cf68289f4d4d207549b3578ea50aa81725b1b5965c865655247085e24ac7286
[INFO] running `Command { std: "docker" "start" "-a" "9cf68289f4d4d207549b3578ea50aa81725b1b5965c865655247085e24ac7286", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling codec2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `Fs`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Fs: i32,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bpf_buf`
[INFO] [stdout]    --> src/lib.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hpf_states`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gray`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `smoothing`
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `se`
[INFO] [stdout]    --> src/lib.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     se: f32,        //  running sum of squared error
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nse`
[INFO] [stdout]    --> src/lib.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `post_filter_en`
[INFO] [stdout]    --> src/lib.rs:458:5
[INFO] [stdout]     |
[INFO] [stdout] 458 |     post_filter_en: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "9cf68289f4d4d207549b3578ea50aa81725b1b5965c865655247085e24ac7286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cf68289f4d4d207549b3578ea50aa81725b1b5965c865655247085e24ac7286", kill_on_drop: false }`
[INFO] [stdout] 9cf68289f4d4d207549b3578ea50aa81725b1b5965c865655247085e24ac7286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3dea1f08451246d17f4381c614d9222d435b3a42fe3ba0e1168e22185a9bc53
[INFO] running `Command { std: "docker" "start" "-a" "e3dea1f08451246d17f4381c614d9222d435b3a42fe3ba0e1168e22185a9bc53", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stdout] warning: field is never read: `Fs`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Fs: i32,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bpf_buf`
[INFO] [stdout]    --> src/lib.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hpf_states`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gray`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `smoothing`
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `se`
[INFO] [stdout]    --> src/lib.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     se: f32,        //  running sum of squared error
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nse`
[INFO] [stdout]    --> src/lib.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `post_filter_en`
[INFO] [stdout]    --> src/lib.rs:458:5
[INFO] [stdout]     |
[INFO] [stdout] 458 |     post_filter_en: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stderr]    Compiling codec2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `Fs`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Fs: i32,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bpf_buf`
[INFO] [stdout]    --> src/lib.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hpf_states`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gray`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `smoothing`
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `se`
[INFO] [stdout]    --> src/lib.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     se: f32,        //  running sum of squared error
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nse`
[INFO] [stdout]    --> src/lib.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `post_filter_en`
[INFO] [stdout]    --> src/lib.rs:458:5
[INFO] [stdout]     |
[INFO] [stdout] 458 |     post_filter_en: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.71s
[INFO] running `Command { std: "docker" "inspect" "e3dea1f08451246d17f4381c614d9222d435b3a42fe3ba0e1168e22185a9bc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3dea1f08451246d17f4381c614d9222d435b3a42fe3ba0e1168e22185a9bc53", kill_on_drop: false }`
[INFO] [stdout] e3dea1f08451246d17f4381c614d9222d435b3a42fe3ba0e1168e22185a9bc53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5d7cf288d010eecf886bbc6e297b05e66dd024a7c3831fb2b72a1fdaa9fbfd7
[INFO] running `Command { std: "docker" "start" "-a" "b5d7cf288d010eecf886bbc6e297b05e66dd024a7c3831fb2b72a1fdaa9fbfd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `Fs`
[INFO] [stderr]    --> src/lib.rs:424:5
[INFO] [stderr]     |
[INFO] [stderr] 424 |     Fs: i32,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bpf_buf`
[INFO] [stderr]    --> src/lib.rs:432:5
[INFO] [stderr]     |
[INFO] [stderr] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `hpf_states`
[INFO] [stderr]    --> src/lib.rs:434:5
[INFO] [stderr]     |
[INFO] [stderr] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `gray`
[INFO] [stderr]    --> src/lib.rs:436:5
[INFO] [stderr]     |
[INFO] [stderr] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `smoothing`
[INFO] [stderr]    --> src/lib.rs:455:5
[INFO] [stderr]     |
[INFO] [stderr] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `se`
[INFO] [stderr]    --> src/lib.rs:456:5
[INFO] [stderr]     |
[INFO] [stderr] 456 |     se: f32,        //  running sum of squared error
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nse`
[INFO] [stderr]    --> src/lib.rs:457:5
[INFO] [stderr]     |
[INFO] [stderr] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `post_filter_en`
[INFO] [stderr]    --> src/lib.rs:458:5
[INFO] [stderr]     |
[INFO] [stderr] 458 |     post_filter_en: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `codec2` (lib) generated 8 warnings
[INFO] [stderr] warning: `codec2` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/codec2-f949b2688494005d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::encode_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests codec2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5d7cf288d010eecf886bbc6e297b05e66dd024a7c3831fb2b72a1fdaa9fbfd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5d7cf288d010eecf886bbc6e297b05e66dd024a7c3831fb2b72a1fdaa9fbfd7", kill_on_drop: false }`
[INFO] [stdout] b5d7cf288d010eecf886bbc6e297b05e66dd024a7c3831fb2b72a1fdaa9fbfd7