Dec 18 18:19:30.892 INFO checking b2-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:19:30.892 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/b2/0.1.0:/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 18:19:31.147 INFO [stdout] b59edba684e4d71b855d9b57908befb13bd2949cb7f36dc7ad26a245b8a2fe8e
Dec 18 18:19:31.148 INFO running `"docker" "start" "-a" "b59edba684e4d71b855d9b57908befb13bd2949cb7f36dc7ad26a245b8a2fe8e"`
Dec 18 18:19:31.868 INFO [stderr]     Checking gif v0.8.0
Dec 18 18:19:32.415 INFO [stderr]     Checking image v0.9.1
Dec 18 18:19:35.739 INFO [stderr]     Checking b2 v0.1.0 (/opt/crater/workdir)
Dec 18 18:19:36.990 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.26s
Dec 18 18:19:37.274 INFO running `"docker" "inspect" "b59edba684e4d71b855d9b57908befb13bd2949cb7f36dc7ad26a245b8a2fe8e"`
Dec 18 18:19:37.420 INFO running `"docker" "rm" "-f" "b59edba684e4d71b855d9b57908befb13bd2949cb7f36dc7ad26a245b8a2fe8e"`
Dec 18 18:19:37.569 INFO [stdout] b59edba684e4d71b855d9b57908befb13bd2949cb7f36dc7ad26a245b8a2fe8e