Dec 04 14:12:57.437 INFO checking mexus/cancellable-read against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:12:57.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 14:12:57.823 INFO [stdout] 4af9f03e9f817a661c57f0b6242427479801b0806983b7dda4cf0453912404e1
Dec 04 14:12:57.829 INFO running `"docker" "start" "-a" "4af9f03e9f817a661c57f0b6242427479801b0806983b7dda4cf0453912404e1"`
Dec 04 14:12:59.246 INFO [stderr] usermod: no changes
Dec 04 14:12:59.371 INFO [stderr]     Checking tokio-stdin-stdout v0.1.1
Dec 04 14:12:59.371 INFO [stderr]     Checking mio-uds v0.6.4
Dec 04 14:13:00.343 INFO [stderr]     Checking tokio-signal v0.1.4
Dec 04 14:13:01.112 INFO [stderr]     Checking async-stdio v0.1.0 (/source)
Dec 04 14:13:02.355 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
Dec 04 14:13:02.361 INFO [stderr] su: No module specific data is present
Dec 04 14:13:03.084 INFO running `"docker" "inspect" "4af9f03e9f817a661c57f0b6242427479801b0806983b7dda4cf0453912404e1"`
Dec 04 14:13:03.331 INFO running `"docker" "rm" "-f" "4af9f03e9f817a661c57f0b6242427479801b0806983b7dda4cf0453912404e1"`
Dec 04 14:13:03.591 INFO [stdout] 4af9f03e9f817a661c57f0b6242427479801b0806983b7dda4cf0453912404e1