Dec 19 16:01:49.870 INFO checking howeih/Day-13-Roots-of-polynomial against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:01:49.871 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/howeih/Day-13-Roots-of-polynomial:/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 16:01:50.068 INFO [stdout] 1300f5f012f1bb2e5bb44104a55c622350b64734aceb13e7ebad0a0b5e067121
Dec 19 16:01:50.074 INFO running `"docker" "start" "-a" "1300f5f012f1bb2e5bb44104a55c622350b64734aceb13e7ebad0a0b5e067121"`
Dec 19 16:01:50.630 INFO [stderr]     Checking rulinalg v0.4.2
Dec 19 16:01:53.226 INFO [stderr]     Checking roots_of_polynomial v0.1.0 (/opt/crater/workdir)
Dec 19 16:01:53.544 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
Dec 19 16:01:53.885 INFO running `"docker" "inspect" "1300f5f012f1bb2e5bb44104a55c622350b64734aceb13e7ebad0a0b5e067121"`
Dec 19 16:01:53.975 INFO running `"docker" "rm" "-f" "1300f5f012f1bb2e5bb44104a55c622350b64734aceb13e7ebad0a0b5e067121"`
Dec 19 16:01:54.086 INFO [stdout] 1300f5f012f1bb2e5bb44104a55c622350b64734aceb13e7ebad0a0b5e067121