Dec 18 09:46:53.842 INFO checking umio-0.3.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:46:53.842 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/umio/0.3.0:/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 18 09:46:54.377 INFO [stdout] 89f02306fdb7391ca6332b6ee698ed15643e53eecf9d16ca9ae50e755427607a
Dec 18 09:46:54.379 INFO running `"docker" "start" "-a" "89f02306fdb7391ca6332b6ee698ed15643e53eecf9d16ca9ae50e755427607a"`
Dec 18 09:46:56.760 INFO [stderr]     Checking net2 v0.2.33
Dec 18 09:46:57.333 INFO [stderr]     Checking miow v0.1.5
Dec 18 09:46:57.696 INFO [stderr]     Checking mio v0.5.1
Dec 18 09:46:58.880 INFO [stderr]     Checking umio v0.3.0 (/opt/crater/workdir)
Dec 18 09:47:00.316 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
Dec 18 09:47:01.185 INFO running `"docker" "inspect" "89f02306fdb7391ca6332b6ee698ed15643e53eecf9d16ca9ae50e755427607a"`
Dec 18 09:47:01.532 INFO running `"docker" "rm" "-f" "89f02306fdb7391ca6332b6ee698ed15643e53eecf9d16ca9ae50e755427607a"`
Dec 18 09:47:01.900 INFO [stdout] 89f02306fdb7391ca6332b6ee698ed15643e53eecf9d16ca9ae50e755427607a