Dec 17 16:49:23.607 INFO checking rom1v/mio-not-connected against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 16:49:23.607 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/rom1v/mio-not-connected:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:49:24.056 INFO [stdout] d72a415dabb26c5a6f86b965f07c196a73d450d460ca0c255c04d82ce005d8b9
Dec 17 16:49:24.060 INFO running `"docker" "start" "-a" "d72a415dabb26c5a6f86b965f07c196a73d450d460ca0c255c04d82ce005d8b9"`
Dec 17 16:49:26.286 INFO [stderr]     Checking iovec v0.1.0
Dec 17 16:49:26.286 INFO [stderr]     Checking net2 v0.2.31
Dec 17 16:49:27.256 INFO [stderr]     Checking mio v0.6.10
Dec 17 16:49:28.657 INFO [stderr]     Checking mio-not-connected v0.1.0 (/opt/crater/workdir)
Dec 17 16:49:29.185 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
Dec 17 16:49:30.377 INFO running `"docker" "inspect" "d72a415dabb26c5a6f86b965f07c196a73d450d460ca0c255c04d82ce005d8b9"`
Dec 17 16:49:30.718 INFO running `"docker" "rm" "-f" "d72a415dabb26c5a6f86b965f07c196a73d450d460ca0c255c04d82ce005d8b9"`
Dec 17 16:49:31.052 INFO [stdout] d72a415dabb26c5a6f86b965f07c196a73d450d460ca0c255c04d82ce005d8b9