Dec 18 11:09:18.477 INFO checking sleep-protocol-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:09:18.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/sleep-protocol/0.1.1:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 11:09:18.821 INFO [stdout] fdff3c6568f172b072edcad5ef2b5df9b67ec3046b8b8f2507471c80c81c913e
Dec 18 11:09:18.823 INFO running `"docker" "start" "-a" "fdff3c6568f172b072edcad5ef2b5df9b67ec3046b8b8f2507471c80c81c913e"`
Dec 18 11:09:19.719 INFO [stderr]    Compiling protobuf v1.7.4
Dec 18 11:09:19.728 INFO [stderr]    Compiling protoc v1.7.4
Dec 18 11:09:49.608 INFO [stderr]    Compiling protoc-rust v1.7.4
Dec 18 11:09:50.128 INFO [stderr]    Compiling sleep-protocol v0.1.1 (/opt/crater/workdir)
Dec 18 11:09:51.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.77s
Dec 18 11:09:51.775 INFO running `"docker" "inspect" "fdff3c6568f172b072edcad5ef2b5df9b67ec3046b8b8f2507471c80c81c913e"`
Dec 18 11:09:51.870 INFO running `"docker" "rm" "-f" "fdff3c6568f172b072edcad5ef2b5df9b67ec3046b8b8f2507471c80c81c913e"`
Dec 18 11:09:52.040 INFO [stdout] fdff3c6568f172b072edcad5ef2b5df9b67ec3046b8b8f2507471c80c81c913e