Dec 19 13:43:00.729 INFO checking letheed/rgol against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 13:43:00.729 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/letheed/rgol:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:43:00.940 INFO [stdout] 554b4126cf44b9105c7decd0282bcd7fea6b0e9942d71144da00cb6f914c77cd
Dec 19 13:43:00.942 INFO running `"docker" "start" "-a" "554b4126cf44b9105c7decd0282bcd7fea6b0e9942d71144da00cb6f914c77cd"`
Dec 19 13:43:01.876 INFO [stderr]     Checking nix v0.10.0
Dec 19 13:43:07.201 INFO [stderr]     Checking signal v0.5.0
Dec 19 13:43:07.712 INFO [stderr]     Checking rgol v1.0.0 (/opt/crater/workdir)
Dec 19 13:43:08.612 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
Dec 19 13:43:09.482 INFO running `"docker" "inspect" "554b4126cf44b9105c7decd0282bcd7fea6b0e9942d71144da00cb6f914c77cd"`
Dec 19 13:43:09.734 INFO running `"docker" "rm" "-f" "554b4126cf44b9105c7decd0282bcd7fea6b0e9942d71144da00cb6f914c77cd"`
Dec 19 13:43:10.072 INFO [stdout] 554b4126cf44b9105c7decd0282bcd7fea6b0e9942d71144da00cb6f914c77cd