Dec 17 22:30:49.417 INFO checking jaywunder/sudoku against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:30:49.417 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/jaywunder/sudoku:/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 22:30:49.719 INFO [stdout] 0c1235660bbbc405f1f56b2b40f9b0a862a9dc9bcb8648a49d96cd1a9474719f
Dec 17 22:30:49.728 INFO running `"docker" "start" "-a" "0c1235660bbbc405f1f56b2b40f9b0a862a9dc9bcb8648a49d96cd1a9474719f"`
Dec 17 22:30:50.692 INFO [stderr]     Checking csv v0.15.0
Dec 17 22:30:50.692 INFO [stderr]     Checking clap v2.20.1
Dec 17 22:30:56.132 INFO [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
Dec 17 22:30:57.024 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.43s
Dec 17 22:30:57.518 INFO running `"docker" "inspect" "0c1235660bbbc405f1f56b2b40f9b0a862a9dc9bcb8648a49d96cd1a9474719f"`
Dec 17 22:30:57.866 INFO running `"docker" "rm" "-f" "0c1235660bbbc405f1f56b2b40f9b0a862a9dc9bcb8648a49d96cd1a9474719f"`
Dec 17 22:30:58.107 INFO [stdout] 0c1235660bbbc405f1f56b2b40f9b0a862a9dc9bcb8648a49d96cd1a9474719f