Dec 18 04:25:02.748 INFO checking ajkavanagh/rust-mandelbrot against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:25:02.749 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ajkavanagh/rust-mandelbrot:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:25:03.168 INFO [stdout] 099653e05572976d90ed4d7df53e595d7d6461dec97fd24e004e004564b53152
Dec 18 04:25:03.170 INFO running `"docker" "start" "-a" "099653e05572976d90ed4d7df53e595d7d6461dec97fd24e004e004564b53152"`
Dec 18 04:25:04.913 INFO [stderr]     Checking memchr v1.0.1
Dec 18 04:25:05.317 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 18 04:25:05.889 INFO [stderr]     Checking regex v0.2.2
Dec 18 04:25:07.851 INFO [stderr]     Checking docopt v0.8.1
Dec 18 04:25:09.224 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 18 04:25:10.694 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.94s
Dec 18 04:25:11.499 INFO running `"docker" "inspect" "099653e05572976d90ed4d7df53e595d7d6461dec97fd24e004e004564b53152"`
Dec 18 04:25:11.762 INFO running `"docker" "rm" "-f" "099653e05572976d90ed4d7df53e595d7d6461dec97fd24e004e004564b53152"`
Dec 18 04:25:12.131 INFO [stdout] 099653e05572976d90ed4d7df53e595d7d6461dec97fd24e004e004564b53152