Dec 18 09:46:10.243 INFO checking undither-1.0.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:46:10.243 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/undither/1.0.1:/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 18 09:46:10.680 INFO [stdout] 736d26805cabd17458f614b3716a52a016b3b4617d702f96266c89c427f8f0b2
Dec 18 09:46:10.686 INFO running `"docker" "start" "-a" "736d26805cabd17458f614b3716a52a016b3b4617d702f96266c89c427f8f0b2"`
Dec 18 09:46:12.090 INFO [stderr]     Checking imgref v1.3.5
Dec 18 09:46:12.092 INFO [stderr]     Checking rgb v0.8.11
Dec 18 09:46:12.096 INFO [stderr]     Checking vpsearch v1.3.5
Dec 18 09:46:13.181 INFO [stderr]     Checking loop9 v0.1.1
Dec 18 09:46:13.572 INFO [stderr]     Checking undither v1.0.1 (/opt/crater/workdir)
Dec 18 09:46:14.253 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
Dec 18 09:46:14.957 INFO running `"docker" "inspect" "736d26805cabd17458f614b3716a52a016b3b4617d702f96266c89c427f8f0b2"`
Dec 18 09:46:15.334 INFO running `"docker" "rm" "-f" "736d26805cabd17458f614b3716a52a016b3b4617d702f96266c89c427f8f0b2"`
Dec 18 09:46:15.556 INFO [stdout] 736d26805cabd17458f614b3716a52a016b3b4617d702f96266c89c427f8f0b2