Dec 18 13:06:20.392 INFO checking pdf_form-0.2.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:06:20.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/pdf_form/0.2.0:/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 13:06:20.665 INFO [stdout] 7bb8c0189f5c81dc618c5a8c49719564bb265b4b29f3cbab91ca0a8014470637
Dec 18 13:06:20.668 INFO running `"docker" "start" "-a" "7bb8c0189f5c81dc618c5a8c49719564bb265b4b29f3cbab91ca0a8014470637"`
Dec 18 13:06:22.036 INFO [stderr]     Checking png v0.12.0
Dec 18 13:06:22.954 INFO [stderr]     Checking image v0.19.0
Dec 18 13:06:27.191 INFO [stderr]     Checking lopdf v0.15.3
Dec 18 13:06:30.030 INFO [stderr]     Checking pdf_form v0.2.0 (/opt/crater/workdir)
Dec 18 13:06:31.472 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.55s
Dec 18 13:06:31.758 INFO running `"docker" "inspect" "7bb8c0189f5c81dc618c5a8c49719564bb265b4b29f3cbab91ca0a8014470637"`
Dec 18 13:06:31.848 INFO running `"docker" "rm" "-f" "7bb8c0189f5c81dc618c5a8c49719564bb265b4b29f3cbab91ca0a8014470637"`
Dec 18 13:06:31.920 INFO [stdout] 7bb8c0189f5c81dc618c5a8c49719564bb265b4b29f3cbab91ca0a8014470637