[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 master#96cfc75584359ae7ad11cc45968059f29e7b44b7 for pr-137728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhikari112%2Faudio_compressor" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hikari112/audio_compressor on toolchain 96cfc75584359ae7ad11cc45968059f29e7b44b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc1/source/Cargo.toml
[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" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8c4307b8de6b9e853752aae77ce3c8bc0aca91c4965ef04df15d8fc3b7cc20e
[INFO] running `Command { std: "docker" "start" "-a" "f8c4307b8de6b9e853752aae77ce3c8bc0aca91c4965ef04df15d8fc3b7cc20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8c4307b8de6b9e853752aae77ce3c8bc0aca91c4965ef04df15d8fc3b7cc20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8c4307b8de6b9e853752aae77ce3c8bc0aca91c4965ef04df15d8fc3b7cc20e", kill_on_drop: false }`
[INFO] [stdout] f8c4307b8de6b9e853752aae77ce3c8bc0aca91c4965ef04df15d8fc3b7cc20e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+96cfc75584359ae7ad11cc45968059f29e7b44b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ee4562f57843be0e4b0d183da12a3f1a71312e8c690b41296e4955b6b52e48c
[INFO] running `Command { std: "docker" "start" "-a" "8ee4562f57843be0e4b0d183da12a3f1a71312e8c690b41296e4955b6b52e48c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking byteorder v1.4.3
[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: 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: 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 2.11s
[INFO] running `Command { std: "docker" "inspect" "8ee4562f57843be0e4b0d183da12a3f1a71312e8c690b41296e4955b6b52e48c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ee4562f57843be0e4b0d183da12a3f1a71312e8c690b41296e4955b6b52e48c", kill_on_drop: false }`
[INFO] [stdout] 8ee4562f57843be0e4b0d183da12a3f1a71312e8c690b41296e4955b6b52e48c