[INFO] fetching crate sample 0.11.0...
[INFO] testing sample-0.11.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sample 0.11.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sample 0.11.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sample 0.11.0
[INFO] finished tweaking crates.io crate sample 0.11.0
[INFO] tweaked toml for crates.io crate sample 0.11.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate sample 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] 55da5e5e0ba7306c6f0f77c85c1719fb9679d4d602c45c682d056a570bd79939
[INFO] running `Command { std: "docker" "start" "-a" "55da5e5e0ba7306c6f0f77c85c1719fb9679d4d602c45c682d056a570bd79939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55da5e5e0ba7306c6f0f77c85c1719fb9679d4d602c45c682d056a570bd79939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55da5e5e0ba7306c6f0f77c85c1719fb9679d4d602c45c682d056a570bd79939", kill_on_drop: false }`
[INFO] [stdout] 55da5e5e0ba7306c6f0f77c85c1719fb9679d4d602c45c682d056a570bd79939
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d8beaa3d287b445d94f9061b86bf897c6c4460555b491522b908564e5191276
[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" "5d8beaa3d287b445d94f9061b86bf897c6c4460555b491522b908564e5191276", kill_on_drop: false }`
[INFO] [stderr]    Compiling sample v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/conv.rs:292:13
[INFO] [stdout]     |
[INFO] [stdout] 292 |             ((s + 2_147_483_647 + 1) as u32)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/ring_buffer.rs:552:29
[INFO] [stdout]     |
[INFO] [stdout] 552 |             let data = mem::uninitialized();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/window.rs:73:41
[INFO] [stdout]    |
[INFO] [stdout] 73 |         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] 73 |         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; 2 warnings emitted
[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` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5d8beaa3d287b445d94f9061b86bf897c6c4460555b491522b908564e5191276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8beaa3d287b445d94f9061b86bf897c6c4460555b491522b908564e5191276", kill_on_drop: false }`
[INFO] [stdout] 5d8beaa3d287b445d94f9061b86bf897c6c4460555b491522b908564e5191276