Dec 18 09:58:42.586 INFO checking try-mutex-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 09:58:42.586 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/try-mutex/0.1.1:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 09:58:42.806 INFO [stdout] ee8e452e3f280ee6bc484fea00182dd34d78482fb55c37ac39b185032c6bea84
Dec 18 09:58:42.808 INFO running `"docker" "start" "-a" "ee8e452e3f280ee6bc484fea00182dd34d78482fb55c37ac39b185032c6bea84"`
Dec 18 09:58:43.583 INFO [stderr]    Compiling compiletest_rs v0.3.17
Dec 18 09:58:43.583 INFO [stderr]     Checking try-mutex v0.1.1 (/opt/crater/workdir)
Dec 18 09:58:43.584 INFO [stderr]     Checking tester v0.5.0
Dec 18 09:58:48.960 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.52s
Dec 18 09:58:49.528 INFO running `"docker" "inspect" "ee8e452e3f280ee6bc484fea00182dd34d78482fb55c37ac39b185032c6bea84"`
Dec 18 09:58:49.772 INFO running `"docker" "rm" "-f" "ee8e452e3f280ee6bc484fea00182dd34d78482fb55c37ac39b185032c6bea84"`
Dec 18 09:58:50.088 INFO [stdout] ee8e452e3f280ee6bc484fea00182dd34d78482fb55c37ac39b185032c6bea84