Dec 19 21:54:23.989 INFO checking Shuternay/factorization_machine against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:54:23.989 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/Shuternay/factorization_machine:/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 21:54:24.412 INFO [stdout] 977600ae951e214a75cc61b0891f3e62cd887b35f6317cde05fb4d8f49071e60
Dec 19 21:54:24.420 INFO running `"docker" "start" "-a" "977600ae951e214a75cc61b0891f3e62cd887b35f6317cde05fb4d8f49071e60"`
Dec 19 21:54:25.780 INFO [stderr]     Checking serde_json v1.0.17
Dec 19 21:54:27.896 INFO [stderr]     Checking factorization_machine v0.1.0 (/opt/crater/workdir)
Dec 19 21:54:30.824 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.25s
Dec 19 21:54:31.122 INFO running `"docker" "inspect" "977600ae951e214a75cc61b0891f3e62cd887b35f6317cde05fb4d8f49071e60"`
Dec 19 21:54:31.276 INFO running `"docker" "rm" "-f" "977600ae951e214a75cc61b0891f3e62cd887b35f6317cde05fb4d8f49071e60"`
Dec 19 21:54:31.422 INFO [stdout] 977600ae951e214a75cc61b0891f3e62cd887b35f6317cde05fb4d8f49071e60