Dec 18 16:57:42.277 INFO checking document-0.5.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:57:42.277 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/document/0.5.1:/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 16:57:42.524 INFO [stdout] b528d10906669c7a43b72288bd798cd31bc4a5bd3de8041e06eaedbb465286d4
Dec 18 16:57:42.527 INFO running `"docker" "start" "-a" "b528d10906669c7a43b72288bd798cd31bc4a5bd3de8041e06eaedbb465286d4"`
Dec 18 16:57:43.564 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 18 16:57:43.584 INFO [stderr]     Checking document v0.5.1 (/opt/crater/workdir)
Dec 18 16:57:44.050 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 18 16:57:44.305 INFO running `"docker" "inspect" "b528d10906669c7a43b72288bd798cd31bc4a5bd3de8041e06eaedbb465286d4"`
Dec 18 16:57:44.377 INFO running `"docker" "rm" "-f" "b528d10906669c7a43b72288bd798cd31bc4a5bd3de8041e06eaedbb465286d4"`
Dec 18 16:57:44.487 INFO [stdout] b528d10906669c7a43b72288bd798cd31bc4a5bd3de8041e06eaedbb465286d4