[INFO] crate hash40 0.4.0 is already in cache
[INFO] checking hash40-0.4.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate hash40 0.4.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hash40 0.4.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate hash40 0.4.0
[INFO] finished tweaking crates.io crate hash40 0.4.0
[INFO] tweaked toml for crates.io crate hash40 0.4.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] c76b498c534f68ab61a847d840d0b2e84bfadd250d047e30eb5d4c4225d17979
[INFO] running `"docker" "start" "-a" "c76b498c534f68ab61a847d840d0b2e84bfadd250d047e30eb5d4c4225d17979"`
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling compile-time-crc32-impl v0.1.0
[INFO] [stderr]     Checking compile-time-crc32 v0.1.2
[INFO] [stderr]     Checking hash40 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/private.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub static ref LABELS: Mutex<LabelMap> = { Mutex::new(LabelMap::Unset) };
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/private.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub static ref LABELS: Mutex<LabelMap> = { Mutex::new(LabelMap::Unset) };
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `"docker" "inspect" "c76b498c534f68ab61a847d840d0b2e84bfadd250d047e30eb5d4c4225d17979"`
[INFO] running `"docker" "rm" "-f" "c76b498c534f68ab61a847d840d0b2e84bfadd250d047e30eb5d4c4225d17979"`
[INFO] [stdout] c76b498c534f68ab61a847d840d0b2e84bfadd250d047e30eb5d4c4225d17979