Dec 19 19:04:45.250 INFO checking chrde/mazes against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:04:45.250 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/chrde/mazes:/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 19:04:45.484 INFO [stdout] 245e3fa5541109758909b3fc061e82d40b0549b30f2b945f32d4ec3a28bc31fb
Dec 19 19:04:45.486 INFO running `"docker" "start" "-a" "245e3fa5541109758909b3fc061e82d40b0549b30f2b945f32d4ec3a28bc31fb"`
Dec 19 19:04:46.340 INFO [stderr]     Checking enum_derive v0.1.7
Dec 19 19:04:46.568 INFO [stderr]     Checking mazes v0.1.0 (/opt/crater/workdir)
Dec 19 19:04:46.991 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 19 19:04:47.270 INFO running `"docker" "inspect" "245e3fa5541109758909b3fc061e82d40b0549b30f2b945f32d4ec3a28bc31fb"`
Dec 19 19:04:47.366 INFO running `"docker" "rm" "-f" "245e3fa5541109758909b3fc061e82d40b0549b30f2b945f32d4ec3a28bc31fb"`
Dec 19 19:04:47.551 INFO [stdout] 245e3fa5541109758909b3fc061e82d40b0549b30f2b945f32d4ec3a28bc31fb