Dec 19 10:07:55.938 INFO checking rkusa/dcsd against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:07:55.938 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/rkusa/dcsd:/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 10:07:56.288 INFO [stdout] 2a9cc6b6b9244e70406a9ab0cc47afaa0b406c358004934bdf17a3bd52b8d8cb
Dec 19 10:07:56.296 INFO running `"docker" "start" "-a" "2a9cc6b6b9244e70406a9ab0cc47afaa0b406c358004934bdf17a3bd52b8d8cb"`
Dec 19 10:07:57.932 INFO [stderr]     Checking tokio-io v0.1.3
Dec 19 10:07:58.700 INFO [stderr]     Checking tokio-core v0.1.10
Dec 19 10:07:59.805 INFO [stderr]     Checking dcsd v0.1.0 (/opt/crater/workdir)
Dec 19 10:08:00.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
Dec 19 10:08:01.202 INFO running `"docker" "inspect" "2a9cc6b6b9244e70406a9ab0cc47afaa0b406c358004934bdf17a3bd52b8d8cb"`
Dec 19 10:08:01.402 INFO running `"docker" "rm" "-f" "2a9cc6b6b9244e70406a9ab0cc47afaa0b406c358004934bdf17a3bd52b8d8cb"`
Dec 19 10:08:01.636 INFO [stdout] 2a9cc6b6b9244e70406a9ab0cc47afaa0b406c358004934bdf17a3bd52b8d8cb