Dec 19 11:11:37.317 INFO checking patricksjackson/kolakoski against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:11:37.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/patricksjackson/kolakoski:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:11:37.768 INFO [stdout] 28373b5799d4ac5ba5b55c8399ede02c2dd3075e79b9d89b3327973587658a50
Dec 19 11:11:37.775 INFO running `"docker" "start" "-a" "28373b5799d4ac5ba5b55c8399ede02c2dd3075e79b9d89b3327973587658a50"`
Dec 19 11:11:39.308 INFO [stderr]     Checking term_size v0.3.0
Dec 19 11:11:39.324 INFO [stderr]     Checking atty v0.2.2
Dec 19 11:11:39.712 INFO [stderr]     Checking textwrap v0.7.0
Dec 19 11:11:40.090 INFO [stderr]     Checking clap v2.26.0
Dec 19 11:11:46.128 INFO [stderr]     Checking kolakoski v0.1.0 (/opt/crater/workdir)
Dec 19 11:11:46.744 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.49s
Dec 19 11:11:48.105 INFO running `"docker" "inspect" "28373b5799d4ac5ba5b55c8399ede02c2dd3075e79b9d89b3327973587658a50"`
Dec 19 11:11:48.428 INFO running `"docker" "rm" "-f" "28373b5799d4ac5ba5b55c8399ede02c2dd3075e79b9d89b3327973587658a50"`
Dec 19 11:11:48.832 INFO [stdout] 28373b5799d4ac5ba5b55c8399ede02c2dd3075e79b9d89b3327973587658a50