Dec 19 16:02:45.115 INFO checking holmandw/velg against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:02:45.115 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/holmandw/velg:/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 16:02:45.650 INFO [stdout] aac82c267a8ccee21756d424d26b55305c6cbfe4173c46f99d4eb9a0b5d382e4
Dec 19 16:02:45.656 INFO running `"docker" "start" "-a" "aac82c267a8ccee21756d424d26b55305c6cbfe4173c46f99d4eb9a0b5d382e4"`
Dec 19 16:02:46.957 INFO [stderr]     Checking regex v1.0.5
Dec 19 16:02:49.560 INFO [stderr]     Checking docopt v1.0.2
Dec 19 16:02:50.928 INFO [stderr]     Checking velg v0.1.0 (/opt/crater/workdir)
Dec 19 16:02:51.618 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.77s
Dec 19 16:02:52.632 INFO running `"docker" "inspect" "aac82c267a8ccee21756d424d26b55305c6cbfe4173c46f99d4eb9a0b5d382e4"`
Dec 19 16:02:52.991 INFO running `"docker" "rm" "-f" "aac82c267a8ccee21756d424d26b55305c6cbfe4173c46f99d4eb9a0b5d382e4"`
Dec 19 16:02:53.372 INFO [stdout] aac82c267a8ccee21756d424d26b55305c6cbfe4173c46f99d4eb9a0b5d382e4