Dec 19 12:43:37.257 INFO checking mgoszcz2/brusque against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:43:37.257 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mgoszcz2/brusque:/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 12:43:37.516 INFO [stdout] 429ba06b405f24c0ba3d53a5e766265e1b67b045b33009ca237131dc49b19de0
Dec 19 12:43:37.518 INFO running `"docker" "start" "-a" "429ba06b405f24c0ba3d53a5e766265e1b67b045b33009ca237131dc49b19de0"`
Dec 19 12:43:38.487 INFO [stderr]     Checking num-bigint v0.1.39
Dec 19 12:43:38.487 INFO [stderr]     Checking docopt v0.8.0
Dec 19 12:43:39.331 INFO [stderr]     Checking num v0.1.39
Dec 19 12:43:39.680 INFO [stderr]     Checking brusque v0.1.0 (/opt/crater/workdir)
Dec 19 12:43:41.123 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.75s
Dec 19 12:43:41.716 INFO running `"docker" "inspect" "429ba06b405f24c0ba3d53a5e766265e1b67b045b33009ca237131dc49b19de0"`
Dec 19 12:43:41.970 INFO running `"docker" "rm" "-f" "429ba06b405f24c0ba3d53a5e766265e1b67b045b33009ca237131dc49b19de0"`
Dec 19 12:43:42.253 INFO [stdout] 429ba06b405f24c0ba3d53a5e766265e1b67b045b33009ca237131dc49b19de0