Dec 19 17:11:24.278 INFO checking eun-ice/atomicring against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:11:24.278 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/eun-ice/atomicring:/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 17:11:24.684 INFO [stdout] 6f22fef7297dec64ac28e7825068b4ffb0532f29021e860374ae831a8b85561a
Dec 19 17:11:24.686 INFO running `"docker" "start" "-a" "6f22fef7297dec64ac28e7825068b4ffb0532f29021e860374ae831a8b85561a"`
Dec 19 17:11:26.750 INFO [stderr]     Checking mpmc v0.1.5
Dec 19 17:11:26.782 INFO [stderr]     Checking parking_lot_core v0.4.0
Dec 19 17:11:27.576 INFO [stderr]     Checking parking_lot v0.7.0
Dec 19 17:11:28.216 INFO [stderr]     Checking atomicring v1.0.4 (/opt/crater/workdir)
Dec 19 17:11:29.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
Dec 19 17:11:30.390 INFO running `"docker" "inspect" "6f22fef7297dec64ac28e7825068b4ffb0532f29021e860374ae831a8b85561a"`
Dec 19 17:11:30.674 INFO running `"docker" "rm" "-f" "6f22fef7297dec64ac28e7825068b4ffb0532f29021e860374ae831a8b85561a"`
Dec 19 17:11:30.904 INFO [stdout] 6f22fef7297dec64ac28e7825068b4ffb0532f29021e860374ae831a8b85561a