Dec 18 10:19:23.884 INFO checking threads_pool-0.1.7 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:19:23.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:19:24.064 INFO [stdout] 741dbd4e29f216b13517c91188e3a17ccefd715258092415027d18dba3ebc9cf
Dec 18 10:19:24.066 INFO running `"docker" "start" "-a" "741dbd4e29f216b13517c91188e3a17ccefd715258092415027d18dba3ebc9cf"`
Dec 18 10:19:24.766 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Dec 18 10:19:25.352 INFO [stderr]     Checking crossbeam-channel v0.2.6
Dec 18 10:19:26.364 INFO [stderr]     Checking threads_pool v0.1.7 (/opt/crater/workdir)
Dec 18 10:19:27.781 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.06s
Dec 18 10:19:28.328 INFO running `"docker" "inspect" "741dbd4e29f216b13517c91188e3a17ccefd715258092415027d18dba3ebc9cf"`
Dec 18 10:19:28.735 INFO running `"docker" "rm" "-f" "741dbd4e29f216b13517c91188e3a17ccefd715258092415027d18dba3ebc9cf"`
Dec 18 10:19:29.092 INFO [stdout] 741dbd4e29f216b13517c91188e3a17ccefd715258092415027d18dba3ebc9cf