[INFO] fetching crate synth 0.11.0...
[INFO] testing synth-0.11.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate synth 0.11.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate synth 0.11.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synth 0.11.0
[INFO] finished tweaking crates.io crate synth 0.11.0
[INFO] tweaked toml for crates.io crate synth 0.11.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded portaudio v0.6.4
[INFO] [stderr]   Downloaded envelope v0.8.1
[INFO] [stderr]   Downloaded sample v0.6.2
[INFO] [stderr]   Downloaded time_calc v0.11.1
[INFO] [stderr]   Downloaded simple_gaussian v0.4.5
[INFO] [stderr]   Downloaded dsp-chain v0.13.1
[INFO] [stderr]   Downloaded panning v0.1.1
[INFO] [stderr]   Downloaded mindtree_utils v0.4.0
[INFO] [stderr]   Downloaded instrument v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] baee037b10b8d753a78acdf4d531464a3161a7a68de0a88dea2d97853a9cdf07
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "baee037b10b8d753a78acdf4d531464a3161a7a68de0a88dea2d97853a9cdf07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baee037b10b8d753a78acdf4d531464a3161a7a68de0a88dea2d97853a9cdf07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baee037b10b8d753a78acdf4d531464a3161a7a68de0a88dea2d97853a9cdf07", kill_on_drop: false }`
[INFO] [stdout] baee037b10b8d753a78acdf4d531464a3161a7a68de0a88dea2d97853a9cdf07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7165773ee4dd3b446eb9d33b0b26d9e6fcdb308333891d19cb042514073f5d8d
[INFO] running `Command { std: "docker" "start" "-a" "7165773ee4dd3b446eb9d33b0b26d9e6fcdb308333891d19cb042514073f5d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling interpolation v0.1.0
[INFO] [stderr]    Compiling sample v0.6.2
[INFO] [stderr]    Compiling panning v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling petgraph v0.2.10
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling daggy v0.4.1
[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] error: could not compile `sample`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7165773ee4dd3b446eb9d33b0b26d9e6fcdb308333891d19cb042514073f5d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7165773ee4dd3b446eb9d33b0b26d9e6fcdb308333891d19cb042514073f5d8d", kill_on_drop: false }`
[INFO] [stdout] 7165773ee4dd3b446eb9d33b0b26d9e6fcdb308333891d19cb042514073f5d8d