Dec 17 19:25:26.803 INFO checking monjohn/prufen against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:25:26.803 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/monjohn/prufen:/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 19:25:27.034 INFO [stdout] c34b165ecb3cb8767506b07bde1cf47f7d4d65493d1695a47deed19ffae21bbb
Dec 17 19:25:27.035 INFO running `"docker" "start" "-a" "c34b165ecb3cb8767506b07bde1cf47f7d4d65493d1695a47deed19ffae21bbb"`
Dec 17 19:25:27.830 INFO [stderr]     Checking csv-core v0.1.4
Dec 17 19:25:28.310 INFO [stderr]     Checking csv v1.0.0-beta.5
Dec 17 19:25:29.510 INFO [stderr]     Checking prufen v0.1.2 (/opt/crater/workdir)
Dec 17 19:25:30.087 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
Dec 17 19:25:30.560 INFO running `"docker" "inspect" "c34b165ecb3cb8767506b07bde1cf47f7d4d65493d1695a47deed19ffae21bbb"`
Dec 17 19:25:30.674 INFO running `"docker" "rm" "-f" "c34b165ecb3cb8767506b07bde1cf47f7d4d65493d1695a47deed19ffae21bbb"`
Dec 17 19:25:30.834 INFO [stdout] c34b165ecb3cb8767506b07bde1cf47f7d4d65493d1695a47deed19ffae21bbb