Dec 11 20:40:23.230 INFO checking codinguncut/adventofcode_2017 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 20:40:23.230 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 20:40:23.796 INFO [stdout] c80dc715ebcab238ad9a0b5287855e89d0db59178aab377d780f658a74484f6d
Dec 11 20:40:23.798 INFO running `"docker" "start" "-a" "c80dc715ebcab238ad9a0b5287855e89d0db59178aab377d780f658a74484f6d"`
Dec 11 20:40:24.424 INFO [stderr] usermod: no changes
Dec 11 20:40:24.544 INFO [stderr]     Checking libc v0.2.34
Dec 11 20:40:24.547 INFO [stderr]     Checking itertools v0.7.4
Dec 11 20:40:25.872 INFO [stderr]     Checking memchr v2.0.1
Dec 11 20:40:26.237 INFO [stderr]     Checking aho-corasick v0.6.4
Dec 11 20:40:27.192 INFO [stderr]     Checking regex v0.2.3
Dec 11 20:40:29.332 INFO [stderr]     Checking rust_first v0.1.0 (/source)
Dec 11 20:40:30.544 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.09s
Dec 11 20:40:30.544 INFO [stderr] su: No module specific data is present
Dec 11 20:40:31.196 INFO running `"docker" "inspect" "c80dc715ebcab238ad9a0b5287855e89d0db59178aab377d780f658a74484f6d"`
Dec 11 20:40:31.494 INFO running `"docker" "rm" "-f" "c80dc715ebcab238ad9a0b5287855e89d0db59178aab377d780f658a74484f6d"`
Dec 11 20:40:31.712 INFO [stdout] c80dc715ebcab238ad9a0b5287855e89d0db59178aab377d780f658a74484f6d