[INFO] cloning repository https://github.com/volodya7292/audio_virtualizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volodya7292/audio_virtualizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodya7292%2Faudio_virtualizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodya7292%2Faudio_virtualizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f38501fb1ef4ac6c7b351a47d9446e7f66445606
[INFO] checking volodya7292/audio_virtualizer/f38501fb1ef4ac6c7b351a47d9446e7f66445606 against master#e0e204f3e97ad5f79524b9c259dc38df606ed82c for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolodya7292%2Faudio_virtualizer" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/volodya7292/audio_virtualizer
[INFO] finished tweaking git repo https://github.com/volodya7292/audio_virtualizer
[INFO] tweaked toml for git repo https://github.com/volodya7292/audio_virtualizer written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/volodya7292/audio_virtualizer on toolchain e0e204f3e97ad5f79524b9c259dc38df606ed82c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/volodya7292/audio_virtualizer 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" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded objc2-audio-toolbox v0.3.1
[INFO] [stderr]   Downloaded objc2-core-audio-types v0.3.1
[INFO] [stderr]   Downloaded objc2-core-audio v0.3.1
[INFO] [stderr]   Downloaded coreaudio-rs v0.13.0
[INFO] [stderr]   Downloaded cpal v0.16.0
[INFO] [stderr]   Downloaded rustfft v6.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24ddd12e85d908d62d2f6107755212188c9061043c300fee4e04c22f3207f3cc
[INFO] running `Command { std: "docker" "start" "-a" "24ddd12e85d908d62d2f6107755212188c9061043c300fee4e04c22f3207f3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24ddd12e85d908d62d2f6107755212188c9061043c300fee4e04c22f3207f3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24ddd12e85d908d62d2f6107755212188c9061043c300fee4e04c22f3207f3cc", kill_on_drop: false }`
[INFO] [stdout] 24ddd12e85d908d62d2f6107755212188c9061043c300fee4e04c22f3207f3cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e0e204f3e97ad5f79524b9c259dc38df606ed82c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3c32970d5eb161f46902e1d20608d6ca60e06ea0c6fda35fc575018c1cd13fc
[INFO] running `Command { std: "docker" "start" "-a" "b3c32970d5eb161f46902e1d20608d6ca60e06ea0c6fda35fc575018c1cd13fc", kill_on_drop: false }`
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[INFO] [stderr]     Checking audio_virtualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `num_channels` is never used
[INFO] [stdout]   --> src/audio_data.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl<'a> AudioDataRef<'a> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn num_channels(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `num_channels` is never used
[INFO] [stdout]   --> src/audio_data.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl<'a> AudioDataRef<'a> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn num_channels(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "b3c32970d5eb161f46902e1d20608d6ca60e06ea0c6fda35fc575018c1cd13fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c32970d5eb161f46902e1d20608d6ca60e06ea0c6fda35fc575018c1cd13fc", kill_on_drop: false }`
[INFO] [stdout] b3c32970d5eb161f46902e1d20608d6ca60e06ea0c6fda35fc575018c1cd13fc