Dec 19 16:04:30.766 INFO checking hjr3/future-mpsc-example against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:04:30.766 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/hjr3/future-mpsc-example:/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 16:04:31.001 INFO [stdout] 18432bc443bfe2e2ce61f507a61a70c4cc6de50f0b4cb7703e85107dd06b8594
Dec 19 16:04:31.001 INFO running `"docker" "start" "-a" "18432bc443bfe2e2ce61f507a61a70c4cc6de50f0b4cb7703e85107dd06b8594"`
Dec 19 16:04:31.761 INFO [stderr]     Checking env_logger v0.4.1
Dec 19 16:04:32.125 INFO [stderr]     Checking future-mpsc-example v0.1.0 (/opt/crater/workdir)
Dec 19 16:04:32.508 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 19 16:04:32.934 INFO running `"docker" "inspect" "18432bc443bfe2e2ce61f507a61a70c4cc6de50f0b4cb7703e85107dd06b8594"`
Dec 19 16:04:33.016 INFO running `"docker" "rm" "-f" "18432bc443bfe2e2ce61f507a61a70c4cc6de50f0b4cb7703e85107dd06b8594"`
Dec 19 16:04:33.105 INFO [stdout] 18432bc443bfe2e2ce61f507a61a70c4cc6de50f0b4cb7703e85107dd06b8594