Dec 18 17:56:15.242 INFO checking captcha-0.0.7 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 17:56:15.242 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/reg/captcha/0.0.7:/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 17:56:15.544 INFO [stdout] e2a84401a9cd7765502698949f6a1297382ac66ca3d4d244d294699a437c8bae
Dec 18 17:56:15.550 INFO running `"docker" "start" "-a" "e2a84401a9cd7765502698949f6a1297382ac66ca3d4d244d294699a437c8bae"`
Dec 18 17:56:16.392 INFO [stderr]     Checking c_vec v1.3.2
Dec 18 17:56:16.396 INFO [stderr]    Compiling lodepng v1.2.2
Dec 18 17:56:16.400 INFO [stderr]     Checking png v0.7.0
Dec 18 17:56:17.696 INFO [stderr]     Checking image v0.13.0
Dec 18 17:56:21.689 INFO [stderr]     Checking captcha v0.0.7 (/opt/crater/workdir)
Dec 18 17:56:23.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.68s
Dec 18 17:56:24.254 INFO running `"docker" "inspect" "e2a84401a9cd7765502698949f6a1297382ac66ca3d4d244d294699a437c8bae"`
Dec 18 17:56:24.367 INFO running `"docker" "rm" "-f" "e2a84401a9cd7765502698949f6a1297382ac66ca3d4d244d294699a437c8bae"`
Dec 18 17:56:24.477 INFO [stdout] e2a84401a9cd7765502698949f6a1297382ac66ca3d4d244d294699a437c8bae