Dec 19 19:32:22.074 INFO checking brson/basic-http-server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:32:22.074 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/brson/basic-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 19:32:22.674 INFO [stdout] f8c34f61f73813693ba688522632d11c3bc04f786a1eddb1080fa4c49c2c47b7
Dec 19 19:32:22.676 INFO running `"docker" "start" "-a" "f8c34f61f73813693ba688522632d11c3bc04f786a1eddb1080fa4c49c2c47b7"`
Dec 19 19:32:24.788 INFO [stderr]     Checking threadpool v1.4.0
Dec 19 19:32:24.788 INFO [stderr]     Checking error-type v0.1.2
Dec 19 19:32:25.228 INFO [stderr]     Checking basic-http-server v0.2.0 (/opt/crater/workdir)
Dec 19 19:32:26.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
Dec 19 19:32:26.903 INFO running `"docker" "inspect" "f8c34f61f73813693ba688522632d11c3bc04f786a1eddb1080fa4c49c2c47b7"`
Dec 19 19:32:27.032 INFO running `"docker" "rm" "-f" "f8c34f61f73813693ba688522632d11c3bc04f786a1eddb1080fa4c49c2c47b7"`
Dec 19 19:32:27.168 INFO [stdout] f8c34f61f73813693ba688522632d11c3bc04f786a1eddb1080fa4c49c2c47b7