Dec 19 14:10:29.118 INFO checking komamitsu/rust-toy-http-server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:10:29.118 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/komamitsu/rust-toy-http-server:/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 14:10:29.628 INFO [stdout] c7a2621ef94ef05c28bb62c1e839fae9e52311ded25d1e462797e52f1c7411e2
Dec 19 14:10:29.628 INFO running `"docker" "start" "-a" "c7a2621ef94ef05c28bb62c1e839fae9e52311ded25d1e462797e52f1c7411e2"`
Dec 19 14:10:31.084 INFO [stderr]     Checking aho-corasick v0.6.1
Dec 19 14:10:31.681 INFO [stderr]     Checking regex v0.2.1
Dec 19 14:10:33.732 INFO [stderr]     Checking rust-toy-http-server v0.1.0 (/opt/crater/workdir)
Dec 19 14:10:34.497 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
Dec 19 14:10:35.250 INFO running `"docker" "inspect" "c7a2621ef94ef05c28bb62c1e839fae9e52311ded25d1e462797e52f1c7411e2"`
Dec 19 14:10:35.486 INFO running `"docker" "rm" "-f" "c7a2621ef94ef05c28bb62c1e839fae9e52311ded25d1e462797e52f1c7411e2"`
Dec 19 14:10:35.758 INFO [stdout] c7a2621ef94ef05c28bb62c1e839fae9e52311ded25d1e462797e52f1c7411e2