Dec 19 20:51:59.957 INFO checking akito19/rsgrep against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:51:59.957 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/akito19/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:52:00.460 INFO [stdout] 2a2e74da5aade817a4f699288751411a828969edb7a09412cedfaf4df3524cac
Dec 19 20:52:00.462 INFO running `"docker" "start" "-a" "2a2e74da5aade817a4f699288751411a828969edb7a09412cedfaf4df3524cac"`
Dec 19 20:52:01.804 INFO [stderr]     Checking libc v0.2.26
Dec 19 20:52:02.690 INFO [stderr]     Checking memchr v1.0.1
Dec 19 20:52:03.018 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 19 20:52:03.596 INFO [stderr]     Checking regex v0.2.2
Dec 19 20:52:05.835 INFO [stderr]     Checking rsgrep v0.1.0 (/opt/crater/workdir)
Dec 19 20:52:06.324 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
Dec 19 20:52:07.302 INFO running `"docker" "inspect" "2a2e74da5aade817a4f699288751411a828969edb7a09412cedfaf4df3524cac"`
Dec 19 20:52:07.548 INFO running `"docker" "rm" "-f" "2a2e74da5aade817a4f699288751411a828969edb7a09412cedfaf4df3524cac"`
Dec 19 20:52:07.913 INFO [stdout] 2a2e74da5aade817a4f699288751411a828969edb7a09412cedfaf4df3524cac