[INFO] cloning repository https://github.com/happysalada/audiowave_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/happysalada/audiowave_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysalada%2Faudiowave_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysalada%2Faudiowave_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 984c8b2d0c61d4c542964ebc716019c590bc4f26
[INFO] checking happysalada/audiowave_test against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysalada%2Faudiowave_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/happysalada/audiowave_test on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/happysalada/audiowave_test
[INFO] finished tweaking git repo https://github.com/happysalada/audiowave_test
[INFO] tweaked toml for git repo https://github.com/happysalada/audiowave_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/happysalada/audiowave_test 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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.0
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.0
[INFO] [stderr]   Downloaded symphonia-format-mkv v0.5.0
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.0
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.0
[INFO] [stderr]   Downloaded symphonia-format-wav v0.5.0
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.0
[INFO] [stderr]   Downloaded symphonia-core v0.5.0
[INFO] [stderr]   Downloaded symphonia-utils-xiph v0.5.0
[INFO] [stderr]   Downloaded symphonia v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26cab4c6d830b0c8743430d186b34bf074fa004983bc09e7b057959b8d7d25d0
[INFO] running `Command { std: "docker" "start" "-a" "26cab4c6d830b0c8743430d186b34bf074fa004983bc09e7b057959b8d7d25d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26cab4c6d830b0c8743430d186b34bf074fa004983bc09e7b057959b8d7d25d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26cab4c6d830b0c8743430d186b34bf074fa004983bc09e7b057959b8d7d25d0", kill_on_drop: false }`
[INFO] [stdout] 26cab4c6d830b0c8743430d186b34bf074fa004983bc09e7b057959b8d7d25d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d8b26062ef0742b9ca93296ac6fb7874aa6996a94daa92b6297be916e35d4c
[INFO] running `Command { std: "docker" "start" "-a" "b9d8b26062ef0742b9ca93296ac6fb7874aa6996a94daa92b6297be916e35d4c", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking symphonia-core v0.5.0
[INFO] [stderr]     Checking symphonia-codec-pcm v0.5.0
[INFO] [stderr]     Checking symphonia-metadata v0.5.0
[INFO] [stderr]     Checking symphonia-utils-xiph v0.5.0
[INFO] [stderr]     Checking symphonia-format-wav v0.5.0
[INFO] [stderr]     Checking symphonia-codec-vorbis v0.5.0
[INFO] [stderr]     Checking symphonia-format-mkv v0.5.0
[INFO] [stderr]     Checking symphonia-format-ogg v0.5.0
[INFO] [stderr]     Checking symphonia-bundle-flac v0.5.0
[INFO] [stderr]     Checking symphonia v0.5.0
[INFO] [stderr]     Checking audiowave_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `decoder`
[INFO] [stdout]   --> src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut decoder = symphonia::default::get_codecs()
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut decoder = symphonia::default::get_codecs()
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decoder`
[INFO] [stdout]   --> src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut decoder = symphonia::default::get_codecs()
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut decoder = symphonia::default::get_codecs()
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "b9d8b26062ef0742b9ca93296ac6fb7874aa6996a94daa92b6297be916e35d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d8b26062ef0742b9ca93296ac6fb7874aa6996a94daa92b6297be916e35d4c", kill_on_drop: false }`
[INFO] [stdout] b9d8b26062ef0742b9ca93296ac6fb7874aa6996a94daa92b6297be916e35d4c