Dec 18 18:03:28.368 INFO checking brain-rs-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:03:28.368 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/brain-rs/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:03:28.607 INFO [stdout] 3b82a2266c997d4f070667c5ac68e18da4ad2b5bbebb04042c6c32fd41e92c21
Dec 18 18:03:28.609 INFO running `"docker" "start" "-a" "3b82a2266c997d4f070667c5ac68e18da4ad2b5bbebb04042c6c32fd41e92c21"`
Dec 18 18:03:29.160 INFO [stderr]     Checking brain-rs v0.1.0 (/opt/crater/workdir)
Dec 18 18:03:30.404 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 18:03:30.404 INFO [stderr]   --> benches/bench_brain.rs:14:9
Dec 18 18:03:30.404 INFO [stderr]    |
Dec 18 18:03:30.404 INFO [stderr] 14 |         execute(code, read_buffer.as_bytes(), &mut write_buffer);
Dec 18 18:03:30.404 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:03:30.404 INFO [stderr]    |
Dec 18 18:03:30.404 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 18:03:30.404 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 18:03:30.404 INFO [stderr] 
Dec 18 18:03:30.807 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
Dec 18 18:03:31.234 INFO running `"docker" "inspect" "3b82a2266c997d4f070667c5ac68e18da4ad2b5bbebb04042c6c32fd41e92c21"`
Dec 18 18:03:31.355 INFO running `"docker" "rm" "-f" "3b82a2266c997d4f070667c5ac68e18da4ad2b5bbebb04042c6c32fd41e92c21"`
Dec 18 18:03:31.467 INFO [stdout] 3b82a2266c997d4f070667c5ac68e18da4ad2b5bbebb04042c6c32fd41e92c21