Dec 19 20:16:41.591 INFO checking ashutoshpith/rust-play against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:16:41.591 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ashutoshpith/rust-play:/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 20:16:41.866 INFO [stdout] 8fe81e7f0ebb5722d684c3d09e3bb15dd431bcafda106ff810101a7b7b5b7974
Dec 19 20:16:41.868 INFO running `"docker" "start" "-a" "8fe81e7f0ebb5722d684c3d09e3bb15dd431bcafda106ff810101a7b7b5b7974"`
Dec 19 20:16:42.593 INFO [stderr]     Checking smallvec v0.4.5
Dec 19 20:16:42.593 INFO [stderr]     Checking error-chain v0.10.0
Dec 19 20:16:43.119 INFO [stderr]     Checking ferris-says v0.1.1
Dec 19 20:16:43.356 INFO [stderr]     Checking hello-rust v0.1.0 (/opt/crater/workdir)
Dec 19 20:16:43.567 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 19 20:16:43.830 INFO running `"docker" "inspect" "8fe81e7f0ebb5722d684c3d09e3bb15dd431bcafda106ff810101a7b7b5b7974"`
Dec 19 20:16:43.910 INFO running `"docker" "rm" "-f" "8fe81e7f0ebb5722d684c3d09e3bb15dd431bcafda106ff810101a7b7b5b7974"`
Dec 19 20:16:43.999 INFO [stdout] 8fe81e7f0ebb5722d684c3d09e3bb15dd431bcafda106ff810101a7b7b5b7974