[INFO] fetching crate ruhear 0.1.0...
[INFO] checking ruhear-0.1.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate ruhear 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ruhear 0.1.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruhear 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ruhear 0.1.0
[INFO] tweaked toml for crates.io crate ruhear 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ruhear 0.1.0 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89841234c45ea3252dd5bc8dd466fdaf1b4a05da6358ab508ac641ed4eddb4b7
[INFO] running `Command { std: "docker" "start" "-a" "89841234c45ea3252dd5bc8dd466fdaf1b4a05da6358ab508ac641ed4eddb4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89841234c45ea3252dd5bc8dd466fdaf1b4a05da6358ab508ac641ed4eddb4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89841234c45ea3252dd5bc8dd466fdaf1b4a05da6358ab508ac641ed4eddb4b7", kill_on_drop: false }`
[INFO] [stdout] 89841234c45ea3252dd5bc8dd466fdaf1b4a05da6358ab508ac641ed4eddb4b7
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 746ad577fcd42757b840cf1d9c3537ce386ed87f8a955886f38561069bc9351d
[INFO] running `Command { std: "docker" "start" "-a" "746ad577fcd42757b840cf1d9c3537ce386ed87f8a955886f38561069bc9351d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking alsa v0.7.1
[INFO] [stderr]     Checking ruhear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/error.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut ruhear = RUHear::new(callback.clone());
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "746ad577fcd42757b840cf1d9c3537ce386ed87f8a955886f38561069bc9351d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746ad577fcd42757b840cf1d9c3537ce386ed87f8a955886f38561069bc9351d", kill_on_drop: false }`
[INFO] [stdout] 746ad577fcd42757b840cf1d9c3537ce386ed87f8a955886f38561069bc9351d