Dec 19 10:51:12.453 INFO checking planet0104/edge_detection against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:51:12.453 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/planet0104/edge_detection:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:51:12.868 INFO [stdout] b9217504d39def22aadbeddc2b1f7df0c6afc575fb2b23c6c1f74da6f6051003
Dec 19 10:51:12.871 INFO running `"docker" "start" "-a" "b9217504d39def22aadbeddc2b1f7df0c6afc575fb2b23c6c1f74da6f6051003"`
Dec 19 10:51:14.502 INFO [stderr]     Checking rgb v0.8.7
Dec 19 10:51:15.109 INFO [stderr]     Checking lodepng v2.1.2
Dec 19 10:51:16.807 INFO [stderr]     Checking image_contrast v0.1.0 (/opt/crater/workdir)
Dec 19 10:51:17.249 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Dec 19 10:51:18.492 INFO running `"docker" "inspect" "b9217504d39def22aadbeddc2b1f7df0c6afc575fb2b23c6c1f74da6f6051003"`
Dec 19 10:51:18.866 INFO running `"docker" "rm" "-f" "b9217504d39def22aadbeddc2b1f7df0c6afc575fb2b23c6c1f74da6f6051003"`
Dec 19 10:51:19.236 INFO [stdout] b9217504d39def22aadbeddc2b1f7df0c6afc575fb2b23c6c1f74da6f6051003