[INFO] fetching crate xos 0.1.22...
[INFO] checking xos-0.1.22 against master#d5419f1e97b90741d51841f800d3c697c662567d for pr-147565
[INFO] extracting crate xos 0.1.22 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate xos 0.1.22
[INFO] finished tweaking crates.io crate xos 0.1.22
[INFO] tweaked toml for crates.io crate xos 0.1.22 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xos 0.1.22 on toolchain d5419f1e97b90741d51841f800d3c697c662567d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xos 0.1.22 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" "+d5419f1e97b90741d51841f800d3c697c662567d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mozjpeg v0.10.13
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df18f2dd396c5ee0790a8e65da94fb65e545cf59a18cca85144f3825bb77c208
[INFO] running `Command { std: "docker" "start" "-a" "df18f2dd396c5ee0790a8e65da94fb65e545cf59a18cca85144f3825bb77c208", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df18f2dd396c5ee0790a8e65da94fb65e545cf59a18cca85144f3825bb77c208", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df18f2dd396c5ee0790a8e65da94fb65e545cf59a18cca85144f3825bb77c208", kill_on_drop: false }`
[INFO] [stdout] df18f2dd396c5ee0790a8e65da94fb65e545cf59a18cca85144f3825bb77c208
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d766329d033ccaa34b9fdc1cab78b399f05ab7f4fa2adfb81e928948890048a
[INFO] running `Command { std: "docker" "start" "-a" "2d766329d033ccaa34b9fdc1cab78b399f05ab7f4fa2adfb81e928948890048a", kill_on_drop: false }`
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[INFO] [stderr]     Checking xos v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/apps/waveform.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut listener = audio::AudioListener::new(device, buffer_duration)?;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/apps/waveform.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut listener = audio::AudioListener::new(device, buffer_duration)?;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.75s
[INFO] running `Command { std: "docker" "inspect" "2d766329d033ccaa34b9fdc1cab78b399f05ab7f4fa2adfb81e928948890048a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d766329d033ccaa34b9fdc1cab78b399f05ab7f4fa2adfb81e928948890048a", kill_on_drop: false }`
[INFO] [stdout] 2d766329d033ccaa34b9fdc1cab78b399f05ab7f4fa2adfb81e928948890048a
