Dec 18 05:01:38.810 INFO checking UseK/mandelbrot against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:01:38.811 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/UseK/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 05:01:39.470 INFO [stdout] 6a6476b7813b98fdbfb3903a3ee91c79ed95da2984b7b958610b1c35f28b3688
Dec 18 05:01:39.480 INFO running `"docker" "start" "-a" "6a6476b7813b98fdbfb3903a3ee91c79ed95da2984b7b958610b1c35f28b3688"`
Dec 18 05:01:40.914 INFO [stderr]     Checking num-bigint v0.1.44
Dec 18 05:01:42.732 INFO [stderr]     Checking num-rational v0.1.42
Dec 18 05:01:43.384 INFO [stderr]     Checking num v0.1.42
Dec 18 05:01:43.709 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 18 05:01:44.169 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
Dec 18 05:01:44.686 INFO running `"docker" "inspect" "6a6476b7813b98fdbfb3903a3ee91c79ed95da2984b7b958610b1c35f28b3688"`
Dec 18 05:01:45.022 INFO running `"docker" "rm" "-f" "6a6476b7813b98fdbfb3903a3ee91c79ed95da2984b7b958610b1c35f28b3688"`
Dec 18 05:01:45.231 INFO [stdout] 6a6476b7813b98fdbfb3903a3ee91c79ed95da2984b7b958610b1c35f28b3688