Dec 18 08:21:46.735 INFO checking BooleanCat/prefab against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:21:46.735 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/BooleanCat/prefab:/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 08:21:47.109 INFO [stdout] 322577df0c3f2984069c002e71aa9071137d0c8913d8f083b60e3184dab24055
Dec 18 08:21:47.111 INFO running `"docker" "start" "-a" "322577df0c3f2984069c002e71aa9071137d0c8913d8f083b60e3184dab24055"`
Dec 18 08:21:49.439 INFO [stderr]    Compiling structopt-derive v0.2.13
Dec 18 08:21:52.740 INFO [stderr]     Checking structopt v0.2.13
Dec 18 08:21:53.129 INFO [stderr]     Checking prefab v0.1.0 (/opt/crater/workdir)
Dec 18 08:22:00.518 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.21s
Dec 18 08:22:00.979 INFO running `"docker" "inspect" "322577df0c3f2984069c002e71aa9071137d0c8913d8f083b60e3184dab24055"`
Dec 18 08:22:01.295 INFO running `"docker" "rm" "-f" "322577df0c3f2984069c002e71aa9071137d0c8913d8f083b60e3184dab24055"`
Dec 18 08:22:01.564 INFO [stdout] 322577df0c3f2984069c002e71aa9071137d0c8913d8f083b60e3184dab24055