Dec 18 14:10:07.964 INFO checking mammut-0.12.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:10:07.964 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/mammut/0.12.0:/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 18 14:10:08.119 INFO [stdout] cd0e7524e81ec432bef0cf54ceb9726aaa55ff9c0b148b3b52cc6eface94f2c4
Dec 18 14:10:08.141 INFO running `"docker" "start" "-a" "cd0e7524e81ec432bef0cf54ceb9726aaa55ff9c0b148b3b52cc6eface94f2c4"`
Dec 18 14:10:09.056 INFO [stderr]     Checking doc-comment v0.1.2
Dec 18 14:10:09.063 INFO [stderr]     Checking hyperx v0.13.1
Dec 18 14:10:11.382 INFO [stderr]     Checking mammut v0.12.0 (/opt/crater/workdir)
Dec 18 14:10:21.856 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.11s
Dec 18 14:10:22.701 INFO running `"docker" "inspect" "cd0e7524e81ec432bef0cf54ceb9726aaa55ff9c0b148b3b52cc6eface94f2c4"`
Dec 18 14:10:23.014 INFO running `"docker" "rm" "-f" "cd0e7524e81ec432bef0cf54ceb9726aaa55ff9c0b148b3b52cc6eface94f2c4"`
Dec 18 14:10:23.241 INFO [stdout] cd0e7524e81ec432bef0cf54ceb9726aaa55ff9c0b148b3b52cc6eface94f2c4