Dec 04 14:39:58.704 INFO checking marcbreitung/problem-map-generator-rust against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:39:58.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 14:39:59.140 INFO [stdout] e59c711b16d36adcdb7205cfd62b621d4ce929d379d7b25964551bdb9aa654c2
Dec 04 14:39:59.142 INFO running `"docker" "start" "-a" "e59c711b16d36adcdb7205cfd62b621d4ce929d379d7b25964551bdb9aa654c2"`
Dec 04 14:40:00.977 INFO [stderr] usermod: no changes
Dec 04 14:40:01.143 INFO [stderr]     Checking serde v1.0.32
Dec 04 14:40:01.154 INFO [stderr]    Compiling serde_derive_internals v0.20.1
Dec 04 14:40:06.307 INFO [stderr]    Compiling serde_derive v1.0.32
Dec 04 14:40:19.354 INFO [stderr]     Checking serde_json v1.0.11
Dec 04 14:40:21.493 INFO [stderr]     Checking problem_map_generator v0.0.1 (/source)
Dec 04 14:40:23.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.05s
Dec 04 14:40:23.073 INFO [stderr] su: No module specific data is present
Dec 04 14:40:24.633 INFO running `"docker" "inspect" "e59c711b16d36adcdb7205cfd62b621d4ce929d379d7b25964551bdb9aa654c2"`
Dec 04 14:40:25.021 INFO running `"docker" "rm" "-f" "e59c711b16d36adcdb7205cfd62b621d4ce929d379d7b25964551bdb9aa654c2"`
Dec 04 14:40:25.383 INFO [stdout] e59c711b16d36adcdb7205cfd62b621d4ce929d379d7b25964551bdb9aa654c2