Dec 19 16:08:04.875 INFO checking henninglive/tokio-udp-multicast-chat against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:08:04.875 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/henninglive/tokio-udp-multicast-chat:/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 16:08:05.366 INFO [stdout] 9f66586da5272ba551766ca7e94c8304358ff31a93664e5d5e7f7047a1aa004d
Dec 19 16:08:05.372 INFO running `"docker" "start" "-a" "9f66586da5272ba551766ca7e94c8304358ff31a93664e5d5e7f7047a1aa004d"`
Dec 19 16:08:06.920 INFO [stderr]     Checking socket2 v0.3.4
Dec 19 16:08:07.604 INFO [stderr]     Checking tokio-udp-multicast-chat v0.1.0 (/opt/crater/workdir)
Dec 19 16:08:08.760 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Dec 19 16:08:09.294 INFO running `"docker" "inspect" "9f66586da5272ba551766ca7e94c8304358ff31a93664e5d5e7f7047a1aa004d"`
Dec 19 16:08:09.638 INFO running `"docker" "rm" "-f" "9f66586da5272ba551766ca7e94c8304358ff31a93664e5d5e7f7047a1aa004d"`
Dec 19 16:08:09.883 INFO [stdout] 9f66586da5272ba551766ca7e94c8304358ff31a93664e5d5e7f7047a1aa004d