Dec 19 20:15:37.591 INFO checking asonix/rust-worker-pool against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:15:37.592 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/asonix/rust-worker-pool:/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 20:15:38.082 INFO [stdout] c7b6e86e09d8f39302f8326aec005fbb037079449f7281772be56416b4a596dd
Dec 19 20:15:38.100 INFO running `"docker" "start" "-a" "c7b6e86e09d8f39302f8326aec005fbb037079449f7281772be56416b4a596dd"`
Dec 19 20:15:39.912 INFO [stderr]     Checking splay_tree v0.2.8
Dec 19 20:15:39.913 INFO [stderr]     Checking handy_async v0.2.12
Dec 19 20:15:43.271 INFO [stderr]     Checking fibers v0.1.8
Dec 19 20:15:44.709 INFO [stderr]     Checking worker-pool v0.1.0 (/opt/crater/workdir)
Dec 19 20:15:51.120 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.37s
Dec 19 20:15:52.410 INFO running `"docker" "inspect" "c7b6e86e09d8f39302f8326aec005fbb037079449f7281772be56416b4a596dd"`
Dec 19 20:15:52.720 INFO running `"docker" "rm" "-f" "c7b6e86e09d8f39302f8326aec005fbb037079449f7281772be56416b4a596dd"`
Dec 19 20:15:53.072 INFO [stdout] c7b6e86e09d8f39302f8326aec005fbb037079449f7281772be56416b4a596dd