[INFO] cloning repository https://github.com/giraugh/mynth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/giraugh/mynth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiraugh%2Fmynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiraugh%2Fmynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67697433f8fa86d826b5a7ece9e374864174ef7d
[INFO] testing giraugh/mynth against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiraugh%2Fmynth" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/giraugh/mynth
[INFO] finished tweaking git repo https://github.com/giraugh/mynth
[INFO] tweaked toml for git repo https://github.com/giraugh/mynth written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/giraugh/mynth on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/giraugh/mynth 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oboe v0.5.0
[INFO] [stderr]   Downloaded mach2 v0.4.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.12
[INFO] [stderr]   Downloaded dasp_sample v0.11.0
[INFO] [stderr]   Downloaded coreaudio-rs v0.11.2
[INFO] [stderr]   Downloaded cpal v0.15.2
[INFO] [stderr]   Downloaded jni v0.20.0
[INFO] [stderr]   Downloaded alsa v0.7.0
[INFO] [stderr]   Downloaded oboe-sys v0.5.0
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded windows v0.46.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fb8e0cca55258e5f77df367b41be9b115ded5b5780704cdac4b77974ef180ed
[INFO] running `Command { std: "docker" "start" "-a" "4fb8e0cca55258e5f77df367b41be9b115ded5b5780704cdac4b77974ef180ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fb8e0cca55258e5f77df367b41be9b115ded5b5780704cdac4b77974ef180ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb8e0cca55258e5f77df367b41be9b115ded5b5780704cdac4b77974ef180ed", kill_on_drop: false }`
[INFO] [stdout] 4fb8e0cca55258e5f77df367b41be9b115ded5b5780704cdac4b77974ef180ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f91feedb8638434cd0f635d5c044fa81a27be8eb60b8992a2425fd93933a21a
[INFO] running `Command { std: "docker" "start" "-a" "2f91feedb8638434cd0f635d5c044fa81a27be8eb60b8992a2425fd93933a21a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling alsa v0.7.0
[INFO] [stderr]    Compiling mynth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TriangleWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct TriangleWave {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SquareWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct SquareWave {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SawToothWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct SawToothWave {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "2f91feedb8638434cd0f635d5c044fa81a27be8eb60b8992a2425fd93933a21a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f91feedb8638434cd0f635d5c044fa81a27be8eb60b8992a2425fd93933a21a", kill_on_drop: false }`
[INFO] [stdout] 2f91feedb8638434cd0f635d5c044fa81a27be8eb60b8992a2425fd93933a21a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaf79499c817f7e78ed0e8186cc8efdffdb9c142e8afb3a079ddd19c1fc1b646
[INFO] running `Command { std: "docker" "start" "-a" "eaf79499c817f7e78ed0e8186cc8efdffdb9c142e8afb3a079ddd19c1fc1b646", kill_on_drop: false }`
[INFO] [stderr]    Compiling mynth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TriangleWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct TriangleWave {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SquareWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct SquareWave {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SawToothWave` is never constructed
[INFO] [stdout]   --> src/waves.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct SawToothWave {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "eaf79499c817f7e78ed0e8186cc8efdffdb9c142e8afb3a079ddd19c1fc1b646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf79499c817f7e78ed0e8186cc8efdffdb9c142e8afb3a079ddd19c1fc1b646", kill_on_drop: false }`
[INFO] [stdout] eaf79499c817f7e78ed0e8186cc8efdffdb9c142e8afb3a079ddd19c1fc1b646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d2510802611daeaf9d3aab664eb18b7635d045ad5caaa9ee970878a2415f6f8f
[INFO] running `Command { std: "docker" "start" "-a" "d2510802611daeaf9d3aab664eb18b7635d045ad5caaa9ee970878a2415f6f8f", kill_on_drop: false }`
[INFO] [stderr] warning: struct `TriangleWave` is never constructed
[INFO] [stderr]   --> src/waves.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct TriangleWave {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SquareWave` is never constructed
[INFO] [stderr]   --> src/waves.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct SquareWave {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SawToothWave` is never constructed
[INFO] [stderr]   --> src/waves.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub struct SawToothWave {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mynth` (bin "mynth" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mynth-a4dbbc3c0499cdf4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2510802611daeaf9d3aab664eb18b7635d045ad5caaa9ee970878a2415f6f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2510802611daeaf9d3aab664eb18b7635d045ad5caaa9ee970878a2415f6f8f", kill_on_drop: false }`
[INFO] [stdout] d2510802611daeaf9d3aab664eb18b7635d045ad5caaa9ee970878a2415f6f8f