Dec 04 14:07:02.549 INFO checking mickjohn/red_or_black against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:07:02.549 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 14:07:02.964 INFO [stdout] b6f832dd59ba55b65d70d1db98de59aadad7ebe6df65c8090e60fcee9f1303a7
Dec 04 14:07:02.966 INFO running `"docker" "start" "-a" "b6f832dd59ba55b65d70d1db98de59aadad7ebe6df65c8090e60fcee9f1303a7"`
Dec 04 14:07:04.075 INFO [stderr] usermod: no changes
Dec 04 14:07:04.272 INFO [stderr]     Checking mio v0.6.16
Dec 04 14:07:04.275 INFO [stderr]    Compiling serde_derive v1.0.78
Dec 04 14:07:06.659 INFO [stderr]     Checking mio-extras v2.0.5
Dec 04 14:07:07.509 INFO [stderr]     Checking ws v0.7.8
Dec 04 14:07:17.262 INFO [stderr]     Checking websocket_red_or_black v0.1.0 (/source)
Dec 04 14:07:21.463 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.36s
Dec 04 14:07:21.479 INFO [stderr] su: No module specific data is present
Dec 04 14:07:21.989 INFO running `"docker" "inspect" "b6f832dd59ba55b65d70d1db98de59aadad7ebe6df65c8090e60fcee9f1303a7"`
Dec 04 14:07:22.265 INFO running `"docker" "rm" "-f" "b6f832dd59ba55b65d70d1db98de59aadad7ebe6df65c8090e60fcee9f1303a7"`
Dec 04 14:07:22.514 INFO [stdout] b6f832dd59ba55b65d70d1db98de59aadad7ebe6df65c8090e60fcee9f1303a7