Dec 11 13:02:09.286 INFO checking mz2212/irondice against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:02:09.286 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 13:02:09.662 INFO [stdout] 9e546f69a028345b5972ec3c247f7dd751d875a690a8a1c51ccc9a7647f9f7b2
Dec 11 13:02:09.666 INFO running `"docker" "start" "-a" "9e546f69a028345b5972ec3c247f7dd751d875a690a8a1c51ccc9a7647f9f7b2"`
Dec 11 13:02:10.616 INFO [stderr] usermod: no changes
Dec 11 13:02:10.750 INFO [stderr]     Checking memchr v1.0.2
Dec 11 13:02:10.750 INFO [stderr]     Checking atty v0.2.6
Dec 11 13:02:10.964 INFO [stderr]     Checking csv-core v0.1.3
Dec 11 13:02:11.248 INFO [stderr]     Checking clap v2.30.0
Dec 11 13:02:11.785 INFO [stderr]     Checking csv v1.0.0-beta.5
Dec 11 13:02:16.409 INFO [stderr]     Checking irondice v0.1.0 (/source)
Dec 11 13:02:17.496 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.86s
Dec 11 13:02:17.504 INFO [stderr] su: No module specific data is present
Dec 11 13:02:18.266 INFO running `"docker" "inspect" "9e546f69a028345b5972ec3c247f7dd751d875a690a8a1c51ccc9a7647f9f7b2"`
Dec 11 13:02:18.618 INFO running `"docker" "rm" "-f" "9e546f69a028345b5972ec3c247f7dd751d875a690a8a1c51ccc9a7647f9f7b2"`
Dec 11 13:02:18.901 INFO [stdout] 9e546f69a028345b5972ec3c247f7dd751d875a690a8a1c51ccc9a7647f9f7b2