[INFO] cloning repository https://github.com/casey/snd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/casey/snd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcasey%2Fsnd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcasey%2Fsnd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e217a4c08680407e1b107dfb213e771a9dc7085a
[INFO] testing casey/snd against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcasey%2Fsnd" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/casey/snd on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/casey/snd
[INFO] finished tweaking git repo https://github.com/casey/snd
[INFO] tweaked toml for git repo https://github.com/casey/snd written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/casey/snd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpal v0.8.1
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.0
[INFO] [stderr]   Downloaded coreaudio-rs v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f67886cb92ea50628ae7475bd0168cc557a3cfe81be688cc9512179b16b29fd
[INFO] running `Command { std: "docker" "start" "-a" "4f67886cb92ea50628ae7475bd0168cc557a3cfe81be688cc9512179b16b29fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f67886cb92ea50628ae7475bd0168cc557a3cfe81be688cc9512179b16b29fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f67886cb92ea50628ae7475bd0168cc557a3cfe81be688cc9512179b16b29fd", kill_on_drop: false }`
[INFO] [stdout] 4f67886cb92ea50628ae7475bd0168cc557a3cfe81be688cc9512179b16b29fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e755c4d02e7f4e9e470daa6154235d7e3eed8268c142b7eeb27cb69c098141e
[INFO] running `Command { std: "docker" "start" "-a" "8e755c4d02e7f4e9e470daa6154235d7e3eed8268c142b7eeb27cb69c098141e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling cpal v0.8.1
[INFO] [stderr]    Compiling snd v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Noise`
[INFO] [stdout]   --> src/synthesizer.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Noise,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Square`
[INFO] [stdout]   --> src/synthesizer.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Square,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Triangle`
[INFO] [stdout]   --> src/synthesizer.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Triangle,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "8e755c4d02e7f4e9e470daa6154235d7e3eed8268c142b7eeb27cb69c098141e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e755c4d02e7f4e9e470daa6154235d7e3eed8268c142b7eeb27cb69c098141e", kill_on_drop: false }`
[INFO] [stdout] 8e755c4d02e7f4e9e470daa6154235d7e3eed8268c142b7eeb27cb69c098141e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 477fc9e959bb1d9deb72b406d43602bfd24c5f5681b96ebe7280472bd9bb6330
[INFO] running `Command { std: "docker" "start" "-a" "477fc9e959bb1d9deb72b406d43602bfd24c5f5681b96ebe7280472bd9bb6330", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling snd v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Noise`
[INFO] [stdout]   --> src/synthesizer.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Noise,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Square`
[INFO] [stdout]   --> src/synthesizer.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Square,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "477fc9e959bb1d9deb72b406d43602bfd24c5f5681b96ebe7280472bd9bb6330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "477fc9e959bb1d9deb72b406d43602bfd24c5f5681b96ebe7280472bd9bb6330", kill_on_drop: false }`
[INFO] [stdout] 477fc9e959bb1d9deb72b406d43602bfd24c5f5681b96ebe7280472bd9bb6330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 91e1a7c4e297c181eda79f2533af7ade31da05fa1405e7a0ce94ef8481a71741
[INFO] running `Command { std: "docker" "start" "-a" "91e1a7c4e297c181eda79f2533af7ade31da05fa1405e7a0ce94ef8481a71741", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Noise`
[INFO] [stderr]   --> src/synthesizer.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Noise,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Square`
[INFO] [stderr]   --> src/synthesizer.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Square,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `snd` (bin "snd" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snd-235049e6ebcf61ee)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test synthesizer::tests::triangle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "91e1a7c4e297c181eda79f2533af7ade31da05fa1405e7a0ce94ef8481a71741", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91e1a7c4e297c181eda79f2533af7ade31da05fa1405e7a0ce94ef8481a71741", kill_on_drop: false }`
[INFO] [stdout] 91e1a7c4e297c181eda79f2533af7ade31da05fa1405e7a0ce94ef8481a71741