[INFO] fetching crate egotism 0.1.0...
[INFO] checking egotism-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate egotism 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate egotism 0.1.0
[INFO] finished tweaking crates.io crate egotism 0.1.0
[INFO] tweaked toml for crates.io crate egotism 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate egotism 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 114 packages to latest compatible versions
[INFO] [stderr]       Adding cpal v0.15.3 (available: v0.16.0)
[INFO] [stderr]       Adding ringbuf v0.3.3 (available: v0.4.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d005ef3a50b40b834a100546c9ce5ebf109e1bdffad329fb9528cd85656a88f6
[INFO] running `Command { std: "docker" "start" "-a" "d005ef3a50b40b834a100546c9ce5ebf109e1bdffad329fb9528cd85656a88f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d005ef3a50b40b834a100546c9ce5ebf109e1bdffad329fb9528cd85656a88f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d005ef3a50b40b834a100546c9ce5ebf109e1bdffad329fb9528cd85656a88f6", kill_on_drop: false }`
[INFO] [stdout] d005ef3a50b40b834a100546c9ce5ebf109e1bdffad329fb9528cd85656a88f6
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d79822db09d901a8a642597c00a6b439df1bd8cba4f4c113c54e5b40f165ff6
[INFO] running `Command { std: "docker" "start" "-a" "6d79822db09d901a8a642597c00a6b439df1bd8cba4f4c113c54e5b40f165ff6", kill_on_drop: false }`
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking alsa v0.9.1
[INFO] [stderr]     Checking ringbuf v0.3.3
[INFO] [stderr]     Checking cpal v0.15.3
[INFO] [stderr]     Checking egotism v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/lib.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     .find(|x| x.name().map(|y| &stringify!(y) == &self.input_device).unwrap_or(false))
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/lib.rs:40:45
[INFO] [stdout]    |
[INFO] [stdout] 40 |                     .find(|x| x.name().map(|y| &stringify!(y) == &self.output_device).unwrap_or(false))
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/lib.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     .find(|x| x.name().map(|y| &stringify!(y) == &self.input_device).unwrap_or(false))
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/lib.rs:40:45
[INFO] [stdout]    |
[INFO] [stdout] 40 |                     .find(|x| x.name().map(|y| &stringify!(y) == &self.output_device).unwrap_or(false))
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "6d79822db09d901a8a642597c00a6b439df1bd8cba4f4c113c54e5b40f165ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d79822db09d901a8a642597c00a6b439df1bd8cba4f4c113c54e5b40f165ff6", kill_on_drop: false }`
[INFO] [stdout] 6d79822db09d901a8a642597c00a6b439df1bd8cba4f4c113c54e5b40f165ff6