[INFO] fetching crate snd 0.0.0...
[INFO] testing snd-0.0.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate snd 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate snd 0.0.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snd 0.0.0
[INFO] finished tweaking crates.io crate snd 0.0.0
[INFO] tweaked toml for crates.io crate snd 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6174e03594cf6fe52c4dae01da9a79c4f2298736e300a8950005bd704631f51d
[INFO] running `Command { std: "docker" "start" "-a" "6174e03594cf6fe52c4dae01da9a79c4f2298736e300a8950005bd704631f51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6174e03594cf6fe52c4dae01da9a79c4f2298736e300a8950005bd704631f51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6174e03594cf6fe52c4dae01da9a79c4f2298736e300a8950005bd704631f51d", kill_on_drop: false }`
[INFO] [stdout] 6174e03594cf6fe52c4dae01da9a79c4f2298736e300a8950005bd704631f51d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783b7a590ed42fa335a3cb44a66e19a69e3e3a15a81a2fd335fc60f7ea641467
[INFO] running `Command { std: "docker" "start" "-a" "783b7a590ed42fa335a3cb44a66e19a69e3e3a15a81a2fd335fc60f7ea641467", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling cpal v0.8.2
[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 3.54s
[INFO] running `Command { std: "docker" "inspect" "783b7a590ed42fa335a3cb44a66e19a69e3e3a15a81a2fd335fc60f7ea641467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783b7a590ed42fa335a3cb44a66e19a69e3e3a15a81a2fd335fc60f7ea641467", kill_on_drop: false }`
[INFO] [stdout] 783b7a590ed42fa335a3cb44a66e19a69e3e3a15a81a2fd335fc60f7ea641467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e619e34a0ee61e7810c140e0e94f29575fd50a5daf30930b58dca8b180261d
[INFO] running `Command { std: "docker" "start" "-a" "c5e619e34a0ee61e7810c140e0e94f29575fd50a5daf30930b58dca8b180261d", kill_on_drop: false }`
[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 0.54s
[INFO] running `Command { std: "docker" "inspect" "c5e619e34a0ee61e7810c140e0e94f29575fd50a5daf30930b58dca8b180261d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e619e34a0ee61e7810c140e0e94f29575fd50a5daf30930b58dca8b180261d", kill_on_drop: false }`
[INFO] [stdout] c5e619e34a0ee61e7810c140e0e94f29575fd50a5daf30930b58dca8b180261d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1db084268335cf10eaf8589f5d19c1f10166b458d0e12259ba35c5d282972df9
[INFO] running `Command { std: "docker" "start" "-a" "1db084268335cf10eaf8589f5d19c1f10166b458d0e12259ba35c5d282972df9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2834818a662ca9da)
[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" "1db084268335cf10eaf8589f5d19c1f10166b458d0e12259ba35c5d282972df9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db084268335cf10eaf8589f5d19c1f10166b458d0e12259ba35c5d282972df9", kill_on_drop: false }`
[INFO] [stdout] 1db084268335cf10eaf8589f5d19c1f10166b458d0e12259ba35c5d282972df9