Dec 17 23:59:21.344 INFO checking g-s-k/mandelbrot against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 23:59:21.344 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/g-s-k/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:59:21.572 INFO [stdout] c6c69dae6563d58c95efa0a6d6da27a91ba42501e90787777eb9564b1ebf7526
Dec 17 23:59:21.573 INFO running `"docker" "start" "-a" "c6c69dae6563d58c95efa0a6d6da27a91ba42501e90787777eb9564b1ebf7526"`
Dec 17 23:59:22.223 INFO [stderr]     Checking png v0.7.0
Dec 17 23:59:22.224 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 17 23:59:23.396 INFO [stderr]     Checking image v0.13.0
Dec 17 23:59:26.892 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 17 23:59:27.617 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
Dec 17 23:59:28.346 INFO running `"docker" "inspect" "c6c69dae6563d58c95efa0a6d6da27a91ba42501e90787777eb9564b1ebf7526"`
Dec 17 23:59:28.730 INFO running `"docker" "rm" "-f" "c6c69dae6563d58c95efa0a6d6da27a91ba42501e90787777eb9564b1ebf7526"`
Dec 17 23:59:28.980 INFO [stdout] c6c69dae6563d58c95efa0a6d6da27a91ba42501e90787777eb9564b1ebf7526