[INFO] cloning repository https://github.com/KallelGaNewk/audiomirror
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KallelGaNewk/audiomirror" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKallelGaNewk%2Faudiomirror", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKallelGaNewk%2Faudiomirror'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d12761fff56fff149917e51edcbc120ad631238
[INFO] checking KallelGaNewk/audiomirror/9d12761fff56fff149917e51edcbc120ad631238 against master#51ff895062ba60a7cba53f57af928c3fb7b0f2f4 for pr-146167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKallelGaNewk%2Faudiomirror" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KallelGaNewk/audiomirror
[INFO] finished tweaking git repo https://github.com/KallelGaNewk/audiomirror
[INFO] tweaked toml for git repo https://github.com/KallelGaNewk/audiomirror written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KallelGaNewk/audiomirror on toolchain 51ff895062ba60a7cba53f57af928c3fb7b0f2f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KallelGaNewk/audiomirror 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" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac530abd19bdad50d4d4de65f115fe124bb18adaf66bddde228b998e36abae3d
[INFO] running `Command { std: "docker" "start" "-a" "ac530abd19bdad50d4d4de65f115fe124bb18adaf66bddde228b998e36abae3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac530abd19bdad50d4d4de65f115fe124bb18adaf66bddde228b998e36abae3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac530abd19bdad50d4d4de65f115fe124bb18adaf66bddde228b998e36abae3d", kill_on_drop: false }`
[INFO] [stdout] ac530abd19bdad50d4d4de65f115fe124bb18adaf66bddde228b998e36abae3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+51ff895062ba60a7cba53f57af928c3fb7b0f2f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b7e5b906d2291058fe94c764e636c0c7d270380dae9789108e18f7d9e4fd562
[INFO] running `Command { std: "docker" "start" "-a" "1b7e5b906d2291058fe94c764e636c0c7d270380dae9789108e18f7d9e4fd562", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking alsa v0.7.0
[INFO] [stderr]     Checking ctrlc v3.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking audiomirror v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]  --> src/loopback_udp.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Cursor, ErrorKind},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]  --> src/loopback_udp.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::{Cursor, ErrorKind},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/loopback.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run(host: cpal::Host) -> Option<(cpal::Stream, cpal::Stream)> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/loopback.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run(host: cpal::Host) -> Option<(cpal::Stream, cpal::Stream)> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_loopback` is never used
[INFO] [stdout]   --> src/loopback.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn start_loopback(anchorspeaker: cpal::Device, mirrorspeaker: cpal::Device) -> (Stream, Stream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_loopback` is never used
[INFO] [stdout]   --> src/loopback.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn start_loopback(anchorspeaker: cpal::Device, mirrorspeaker: cpal::Device) -> (Stream, Stream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.61s
[INFO] running `Command { std: "docker" "inspect" "1b7e5b906d2291058fe94c764e636c0c7d270380dae9789108e18f7d9e4fd562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7e5b906d2291058fe94c764e636c0c7d270380dae9789108e18f7d9e4fd562", kill_on_drop: false }`
[INFO] [stdout] 1b7e5b906d2291058fe94c764e636c0c7d270380dae9789108e18f7d9e4fd562