[INFO] fetching crate sampler 0.2.0...
[INFO] testing sampler-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate sampler 0.2.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate sampler 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sampler 0.2.0
[INFO] finished tweaking crates.io crate sampler 0.2.0
[INFO] tweaked toml for crates.io crate sampler 0.2.0 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 time_calc v0.11.1
[INFO] [stderr]   Downloaded serde_json v0.7.4
[INFO] [stderr]   Downloaded find_folder v0.3.0
[INFO] [stderr]   Downloaded portaudio v0.6.4
[INFO] [stderr]   Downloaded pitch_calc v0.11.1
[INFO] [stderr]   Downloaded sample v0.6.2
[INFO] [stderr]   Downloaded instrument v0.2.0
[INFO] [stderr]   Downloaded hound v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 946ad7a9c42bcf48881b6311fe151b88f2ef55e972b1e83e917e217a3f553b6e
[INFO] running `Command { std: "docker" "start" "-a" "946ad7a9c42bcf48881b6311fe151b88f2ef55e972b1e83e917e217a3f553b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "946ad7a9c42bcf48881b6311fe151b88f2ef55e972b1e83e917e217a3f553b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946ad7a9c42bcf48881b6311fe151b88f2ef55e972b1e83e917e217a3f553b6e", kill_on_drop: false }`
[INFO] [stdout] 946ad7a9c42bcf48881b6311fe151b88f2ef55e972b1e83e917e217a3f553b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c58873b6282e620b6116e20273256f2d7d006b28021650b007bcb8b5c4ac2136
[INFO] running `Command { std: "docker" "start" "-a" "c58873b6282e620b6116e20273256f2d7d006b28021650b007bcb8b5c4ac2136", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling sample v0.6.2
[INFO] [stderr]    Compiling hound v2.0.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sample-0.6.2/src/window.rs:57:41
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let v = phase.to_float_sample().to_sample() * PI_2;
[INFO] [stdout]    |                                         ^^^^^^^^^ cannot infer type for type parameter `S` declared on the associated function `to_sample`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the type argument in the method call
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let v = phase.to_float_sample().to_sample::<S>() * PI_2;
[INFO] [stdout]    |                                                  +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr] error: could not compile `sample` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c58873b6282e620b6116e20273256f2d7d006b28021650b007bcb8b5c4ac2136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58873b6282e620b6116e20273256f2d7d006b28021650b007bcb8b5c4ac2136", kill_on_drop: false }`
[INFO] [stdout] c58873b6282e620b6116e20273256f2d7d006b28021650b007bcb8b5c4ac2136