Dec 17 21:41:52.351 INFO checking kawausokun/rsgrep against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:41:52.352 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/gh/kawausokun/rsgrep:/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 17 21:41:52.834 INFO [stdout] c72e4677d98a2f17cbc0daf0a990234951c1b6ff0381dd775401655087052df6
Dec 17 21:41:52.840 INFO running `"docker" "start" "-a" "c72e4677d98a2f17cbc0daf0a990234951c1b6ff0381dd775401655087052df6"`
Dec 17 21:41:54.280 INFO [stderr]     Checking memchr v1.0.1
Dec 17 21:41:54.648 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 17 21:41:55.260 INFO [stderr]     Checking regex v0.2.2
Dec 17 21:41:57.244 INFO [stderr]     Checking rsgrep v0.1.0 (/opt/crater/workdir)
Dec 17 21:41:57.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.40s
Dec 17 21:41:58.326 INFO running `"docker" "inspect" "c72e4677d98a2f17cbc0daf0a990234951c1b6ff0381dd775401655087052df6"`
Dec 17 21:41:58.642 INFO running `"docker" "rm" "-f" "c72e4677d98a2f17cbc0daf0a990234951c1b6ff0381dd775401655087052df6"`
Dec 17 21:41:58.932 INFO [stdout] c72e4677d98a2f17cbc0daf0a990234951c1b6ff0381dd775401655087052df6