Dec 19 09:51:36.851 INFO checking rschmitt/heatseeker against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:51:36.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/rschmitt/heatseeker:/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 09:51:37.405 INFO [stdout] fd94f308e91dc61e17b39f36afc1c02a489ce7facf43463baf56f4a4a65fef5a
Dec 19 09:51:37.407 INFO running `"docker" "start" "-a" "fd94f308e91dc61e17b39f36afc1c02a489ce7facf43463baf56f4a4a65fef5a"`
Dec 19 09:51:39.005 INFO [stderr]     Checking crossbeam-utils v0.6.0
Dec 19 09:51:39.005 INFO [stderr]    Compiling heatseeker v1.6.0 (/opt/crater/workdir)
Dec 19 09:51:39.373 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Dec 19 09:51:40.091 INFO [stderr]     Checking crossbeam-channel v0.2.6
Dec 19 09:51:41.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
Dec 19 09:51:41.966 INFO running `"docker" "inspect" "fd94f308e91dc61e17b39f36afc1c02a489ce7facf43463baf56f4a4a65fef5a"`
Dec 19 09:51:42.106 INFO running `"docker" "rm" "-f" "fd94f308e91dc61e17b39f36afc1c02a489ce7facf43463baf56f4a4a65fef5a"`
Dec 19 09:51:42.304 INFO [stdout] fd94f308e91dc61e17b39f36afc1c02a489ce7facf43463baf56f4a4a65fef5a