Dec 18 08:07:07.442 INFO checking CodeGradox/mandelbrot against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:07:07.443 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/CodeGradox/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 08:07:07.604 INFO [stdout] edd841baef4064c5d19b2e4e9bbe558597215e438680964d911d322838daa84e
Dec 18 08:07:07.605 INFO running `"docker" "start" "-a" "edd841baef4064c5d19b2e4e9bbe558597215e438680964d911d322838daa84e"`
Dec 18 08:07:08.171 INFO [stderr]     Checking rayon v1.0.3
Dec 18 08:07:11.748 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 18 08:07:12.926 INFO [stderr]     Checking image v0.20.1
Dec 18 08:07:17.948 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 18 08:07:18.920 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.85s
Dec 18 08:07:19.992 INFO running `"docker" "inspect" "edd841baef4064c5d19b2e4e9bbe558597215e438680964d911d322838daa84e"`
Dec 18 08:07:20.340 INFO running `"docker" "rm" "-f" "edd841baef4064c5d19b2e4e9bbe558597215e438680964d911d322838daa84e"`
Dec 18 08:07:20.580 INFO [stdout] edd841baef4064c5d19b2e4e9bbe558597215e438680964d911d322838daa84e