Dec 19 12:53:14.664 INFO checking mazurwiktor/rust-simple-server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:53:14.664 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mazurwiktor/rust-simple-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 12:53:15.156 INFO [stdout] 079dc0524b7185cd9cb5edc67025302df22abf2a665de306f88a6bbeeaaa149a
Dec 19 12:53:15.157 INFO running `"docker" "start" "-a" "079dc0524b7185cd9cb5edc67025302df22abf2a665de306f88a6bbeeaaa149a"`
Dec 19 12:53:16.780 INFO [stderr]     Checking sequence_trie v0.2.1
Dec 19 12:53:17.210 INFO [stderr]     Checking mount v0.3.0
Dec 19 12:53:17.782 INFO [stderr]     Checking staticfile v0.4.0
Dec 19 12:53:18.341 INFO [stderr]     Checking simple-server v0.1.0 (/opt/crater/workdir)
Dec 19 12:53:19.413 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
Dec 19 12:53:21.336 INFO running `"docker" "inspect" "079dc0524b7185cd9cb5edc67025302df22abf2a665de306f88a6bbeeaaa149a"`
Dec 19 12:53:21.738 INFO running `"docker" "rm" "-f" "079dc0524b7185cd9cb5edc67025302df22abf2a665de306f88a6bbeeaaa149a"`
Dec 19 12:53:22.160 INFO [stdout] 079dc0524b7185cd9cb5edc67025302df22abf2a665de306f88a6bbeeaaa149a