Dec 19 07:41:17.007 INFO checking syntheticsh/rust_regex_play against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:41:17.007 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/syntheticsh/rust_regex_play:/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 07:41:17.494 INFO [stdout] 94965cbb296b225d008d3a298f355f3474c18291bf25acc6e94f8391e862b46b
Dec 19 07:41:17.496 INFO running `"docker" "start" "-a" "94965cbb296b225d008d3a298f355f3474c18291bf25acc6e94f8391e862b46b"`
Dec 19 07:41:20.089 INFO [stderr]     Checking memchr v2.1.0
Dec 19 07:41:21.042 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 19 07:41:21.880 INFO [stderr]     Checking regex v1.0.5
Dec 19 07:41:24.402 INFO [stderr]     Checking regexp v0.1.0 (/opt/crater/workdir)
Dec 19 07:41:24.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.93s
Dec 19 07:41:26.087 INFO running `"docker" "inspect" "94965cbb296b225d008d3a298f355f3474c18291bf25acc6e94f8391e862b46b"`
Dec 19 07:41:26.458 INFO running `"docker" "rm" "-f" "94965cbb296b225d008d3a298f355f3474c18291bf25acc6e94f8391e862b46b"`
Dec 19 07:41:26.772 INFO [stdout] 94965cbb296b225d008d3a298f355f3474c18291bf25acc6e94f8391e862b46b