Dec 05 05:06:54.113 INFO checking try-mutex-0.1.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 05:06:54.113 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 05:06:54.300 INFO [stdout] e9db82b6511e1b26e0da0912a75af1a84f2b939b0d5239d3db303e922d1daea0
Dec 05 05:06:54.301 INFO running `"docker" "start" "-a" "e9db82b6511e1b26e0da0912a75af1a84f2b939b0d5239d3db303e922d1daea0"`
Dec 05 05:06:54.787 INFO [stderr] usermod: no changes
Dec 05 05:06:54.963 INFO [stderr]    Compiling compiletest_rs v0.3.17
Dec 05 05:06:54.963 INFO [stderr]     Checking try-mutex v0.1.1 (/source)
Dec 05 05:06:54.963 INFO [stderr]     Checking tester v0.5.0
Dec 05 05:07:03.287 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
Dec 05 05:07:03.303 INFO [stderr] su: No module specific data is present
Dec 05 05:07:04.840 INFO running `"docker" "inspect" "e9db82b6511e1b26e0da0912a75af1a84f2b939b0d5239d3db303e922d1daea0"`
Dec 05 05:07:05.144 INFO running `"docker" "rm" "-f" "e9db82b6511e1b26e0da0912a75af1a84f2b939b0d5239d3db303e922d1daea0"`
Dec 05 05:07:05.543 INFO [stdout] e9db82b6511e1b26e0da0912a75af1a84f2b939b0d5239d3db303e922d1daea0