Dec 19 18:44:39.965 INFO checking crabtw/mdtest against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:44:39.965 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/crabtw/mdtest:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:44:40.513 INFO [stdout] 92c1f7f0cee5cf5a10de5b60bcfcd7330c78307bd711a68b2156a03c68c5ec49
Dec 19 18:44:40.518 INFO running `"docker" "start" "-a" "92c1f7f0cee5cf5a10de5b60bcfcd7330c78307bd711a68b2156a03c68c5ec49"`
Dec 19 18:44:42.183 INFO [stderr]     Checking fs_extra v1.1.0
Dec 19 18:44:42.187 INFO [stderr]    Compiling pulldown-cmark v0.1.2
Dec 19 18:44:43.404 INFO [stderr]     Checking mdtest v0.1.0 (/opt/crater/workdir)
Dec 19 18:44:43.977 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
Dec 19 18:44:44.802 INFO running `"docker" "inspect" "92c1f7f0cee5cf5a10de5b60bcfcd7330c78307bd711a68b2156a03c68c5ec49"`
Dec 19 18:44:45.106 INFO running `"docker" "rm" "-f" "92c1f7f0cee5cf5a10de5b60bcfcd7330c78307bd711a68b2156a03c68c5ec49"`
Dec 19 18:44:45.459 INFO [stdout] 92c1f7f0cee5cf5a10de5b60bcfcd7330c78307bd711a68b2156a03c68c5ec49