Dec 18 10:19:23.400 INFO checking threads_pool-0.1.7 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:19:23.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/threads_pool/0.1.7:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:19:23.688 INFO [stdout] 45af4414d228cc4ed1e1f99ad27e475dad92f1949a7491a9299728200dd40de3
Dec 18 10:19:23.694 INFO running `"docker" "start" "-a" "45af4414d228cc4ed1e1f99ad27e475dad92f1949a7491a9299728200dd40de3"`
Dec 18 10:19:24.347 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Dec 18 10:19:24.918 INFO [stderr]     Checking crossbeam-channel v0.2.6
Dec 18 10:19:25.954 INFO [stderr]     Checking threads_pool v0.1.7 (/opt/crater/workdir)
Dec 18 10:19:27.416 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
Dec 18 10:19:27.886 INFO running `"docker" "inspect" "45af4414d228cc4ed1e1f99ad27e475dad92f1949a7491a9299728200dd40de3"`
Dec 18 10:19:28.324 INFO running `"docker" "rm" "-f" "45af4414d228cc4ed1e1f99ad27e475dad92f1949a7491a9299728200dd40de3"`
Dec 18 10:19:28.678 INFO [stdout] 45af4414d228cc4ed1e1f99ad27e475dad92f1949a7491a9299728200dd40de3