Dec 19 17:08:56.841 INFO checking f0x52/rust_bar against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:08:56.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/f0x52/rust_bar:/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 17:08:57.080 INFO [stdout] 9917cc0c61ab99882e6c6849556df766cb25b167b84a4708ccafbae2c4a66747
Dec 19 17:08:57.082 INFO running `"docker" "start" "-a" "9917cc0c61ab99882e6c6849556df766cb25b167b84a4708ccafbae2c4a66747"`
Dec 19 17:08:58.161 INFO [stderr]     Checking memchr v2.0.1
Dec 19 17:08:58.514 INFO [stderr]     Checking aho-corasick v0.6.4
Dec 19 17:08:59.127 INFO [stderr]     Checking regex v0.2.3
Dec 19 17:09:01.032 INFO [stderr]     Checking rust_bar v0.1.0 (/opt/crater/workdir)
Dec 19 17:09:01.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
Dec 19 17:09:01.827 INFO running `"docker" "inspect" "9917cc0c61ab99882e6c6849556df766cb25b167b84a4708ccafbae2c4a66747"`
Dec 19 17:09:01.925 INFO running `"docker" "rm" "-f" "9917cc0c61ab99882e6c6849556df766cb25b167b84a4708ccafbae2c4a66747"`
Dec 19 17:09:02.018 INFO [stdout] 9917cc0c61ab99882e6c6849556df766cb25b167b84a4708ccafbae2c4a66747