Dec 19 17:02:42.555 INFO checking feynmanliang/parallel_pi_mc against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:02:42.555 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/feynmanliang/parallel_pi_mc:/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 17:02:42.877 INFO [stdout] 34f842c081e32cae0ef1f0c6c6a83cb72b2bcf6aa5de192fa9c2af908a544422
Dec 19 17:02:42.882 INFO running `"docker" "start" "-a" "34f842c081e32cae0ef1f0c6c6a83cb72b2bcf6aa5de192fa9c2af908a544422"`
Dec 19 17:02:43.944 INFO [stderr]     Checking rayon-core v1.2.1
Dec 19 17:02:44.728 INFO [stderr]     Checking rayon v0.8.2
Dec 19 17:02:47.175 INFO [stderr]     Checking parallel-pi-mc v0.1.0 (/opt/crater/workdir)
Dec 19 17:02:48.403 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.51s
Dec 19 17:02:49.844 INFO running `"docker" "inspect" "34f842c081e32cae0ef1f0c6c6a83cb72b2bcf6aa5de192fa9c2af908a544422"`
Dec 19 17:02:50.204 INFO running `"docker" "rm" "-f" "34f842c081e32cae0ef1f0c6c6a83cb72b2bcf6aa5de192fa9c2af908a544422"`
Dec 19 17:02:50.554 INFO [stdout] 34f842c081e32cae0ef1f0c6c6a83cb72b2bcf6aa5de192fa9c2af908a544422