[INFO] cloning repository https://github.com/hikari112/audio_compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hikari112/audio_compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhikari112%2Faudio_compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhikari112%2Faudio_compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0d75f706df6549fb2766fb8e06e39ee68622996
[INFO] checking hikari112/audio_compressor against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhikari112%2Faudio_compressor" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hikari112/audio_compressor
[INFO] finished tweaking git repo https://github.com/hikari112/audio_compressor
[INFO] tweaked toml for git repo https://github.com/hikari112/audio_compressor written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hikari112/audio_compressor on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hikari112/audio_compressor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fc89dd2b6c28be6c870c7bc51f6d9d2416ca277d6b573316b8b2d40ca9ae836
[INFO] running `Command { std: "docker" "start" "-a" "1fc89dd2b6c28be6c870c7bc51f6d9d2416ca277d6b573316b8b2d40ca9ae836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fc89dd2b6c28be6c870c7bc51f6d9d2416ca277d6b573316b8b2d40ca9ae836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc89dd2b6c28be6c870c7bc51f6d9d2416ca277d6b573316b8b2d40ca9ae836", kill_on_drop: false }`
[INFO] [stdout] 1fc89dd2b6c28be6c870c7bc51f6d9d2416ca277d6b573316b8b2d40ca9ae836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fe397368b0a2c9a8ecd35c7898e47d0345523289f7e91cbdce0f85ff7d1b1d7
[INFO] running `Command { std: "docker" "start" "-a" "4fe397368b0a2c9a8ecd35c7898e47d0345523289f7e91cbdce0f85ff7d1b1d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking audio_compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `inout`
[INFO] [stdout]   --> src/main.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn compress(inout: WaveFile) {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_inout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunk_id`, `chunk_size`, and `format` are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct WaveFile {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 8  |     chunk_id: [u8; 4],
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 9  |     chunk_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 10 |     format: [u8; 4],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compress` is never used
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn compress(inout: WaveFile) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inout`
[INFO] [stdout]   --> src/main.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn compress(inout: WaveFile) {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_inout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunk_id`, `chunk_size`, and `format` are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct WaveFile {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 8  |     chunk_id: [u8; 4],
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 9  |     chunk_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 10 |     format: [u8; 4],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compress` is never used
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn compress(inout: WaveFile) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `Command { std: "docker" "inspect" "4fe397368b0a2c9a8ecd35c7898e47d0345523289f7e91cbdce0f85ff7d1b1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe397368b0a2c9a8ecd35c7898e47d0345523289f7e91cbdce0f85ff7d1b1d7", kill_on_drop: false }`
[INFO] [stdout] 4fe397368b0a2c9a8ecd35c7898e47d0345523289f7e91cbdce0f85ff7d1b1d7