Dec 17 15:29:08.309 INFO checking shterrett/rust-concurrency-tutorial against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:29:08.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/shterrett/rust-concurrency-tutorial:/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 17 15:29:08.829 INFO [stdout] d0969ad26ece95c1fe592f1b20a804bc8253240cc4696c3fdf1886f676849146
Dec 17 15:29:08.831 INFO running `"docker" "start" "-a" "d0969ad26ece95c1fe592f1b20a804bc8253240cc4696c3fdf1886f676849146"`
Dec 17 15:29:10.744 INFO [stderr]     Checking chan v0.1.19
Dec 17 15:29:11.348 INFO [stderr]     Checking rust-concurrency-tutorial v0.1.0 (/opt/crater/workdir)
Dec 17 15:29:11.556 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 15:29:11.556 INFO [stderr]  --> src/main.rs:1:1
Dec 17 15:29:11.556 INFO [stderr]   |
Dec 17 15:29:11.556 INFO [stderr] 1 | #[macro_use]
Dec 17 15:29:11.556 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 15:29:11.556 INFO [stderr]   |
Dec 17 15:29:11.556 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:29:11.556 INFO [stderr] 
Dec 17 15:29:11.598 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 15:29:11.598 INFO [stderr]  --> src/main.rs:1:1
Dec 17 15:29:11.598 INFO [stderr]   |
Dec 17 15:29:11.598 INFO [stderr] 1 | #[macro_use]
Dec 17 15:29:11.598 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 15:29:11.598 INFO [stderr]   |
Dec 17 15:29:11.598 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:29:11.598 INFO [stderr] 
Dec 17 15:29:11.804 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 17 15:29:12.515 INFO running `"docker" "inspect" "d0969ad26ece95c1fe592f1b20a804bc8253240cc4696c3fdf1886f676849146"`
Dec 17 15:29:12.930 INFO running `"docker" "rm" "-f" "d0969ad26ece95c1fe592f1b20a804bc8253240cc4696c3fdf1886f676849146"`
Dec 17 15:29:13.358 INFO [stdout] d0969ad26ece95c1fe592f1b20a804bc8253240cc4696c3fdf1886f676849146