[INFO] crate bitreader_async 0.2.0 is already in cache
[INFO] checking bitreader_async-0.2.0 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate bitreader_async 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bitreader_async 0.2.0 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bitreader_async 0.2.0
[INFO] finished tweaking crates.io crate bitreader_async 0.2.0
[INFO] tweaked toml for crates.io crate bitreader_async 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51575186dcd64c4a8d519fce66faa41462b864106227d9c02cd93923e5a516f8
[INFO] running `"docker" "start" "-a" "51575186dcd64c4a8d519fce66faa41462b864106227d9c02cd93923e5a516f8"`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking bit_reverse v0.1.8
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking bitreader_async v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]   --> src/byte_reader.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         #[async_trait]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]   --> src/byte_reader.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         #[async_trait]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]   --> src/byte_reader.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         #[async_trait]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]   --> src/byte_reader.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         #[async_trait]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.52s
[INFO] running `"docker" "inspect" "51575186dcd64c4a8d519fce66faa41462b864106227d9c02cd93923e5a516f8"`
[INFO] running `"docker" "rm" "-f" "51575186dcd64c4a8d519fce66faa41462b864106227d9c02cd93923e5a516f8"`
[INFO] [stdout] 51575186dcd64c4a8d519fce66faa41462b864106227d9c02cd93923e5a516f8