Dec 18 14:08:06.825 INFO checking matroska-0.5.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:08:06.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/matroska/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 14:08:07.282 INFO [stdout] b848b2da54e888f4ffc031cad41e12cdee891ba2eacf8996ec9ec77fc787f743
Dec 18 14:08:07.284 INFO running `"docker" "start" "-a" "b848b2da54e888f4ffc031cad41e12cdee891ba2eacf8996ec9ec77fc787f743"`
Dec 18 14:08:08.672 INFO [stderr]     Checking bitstream-io v0.8.2
Dec 18 14:08:09.329 INFO [stderr]     Checking matroska v0.5.1 (/opt/crater/workdir)
Dec 18 14:08:10.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 18 14:08:10.226 INFO running `"docker" "inspect" "b848b2da54e888f4ffc031cad41e12cdee891ba2eacf8996ec9ec77fc787f743"`
Dec 18 14:08:10.301 INFO running `"docker" "rm" "-f" "b848b2da54e888f4ffc031cad41e12cdee891ba2eacf8996ec9ec77fc787f743"`
Dec 18 14:08:10.429 INFO [stdout] b848b2da54e888f4ffc031cad41e12cdee891ba2eacf8996ec9ec77fc787f743