Dec 02 09:27:10.837 INFO testing AntonHermann/roguelike against 1.30.1 for beta-1.31-5
Dec 02 09:27:10.838 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:27:11.219 INFO [stdout] 2953c3cbda100f68515f8d83efc6aab53f32b2ab93d37fb222e313004685aa9a
Dec 02 09:27:11.221 INFO running `"docker" "start" "-a" "2953c3cbda100f68515f8d83efc6aab53f32b2ab93d37fb222e313004685aa9a"`
Dec 02 09:27:12.089 INFO [stderr] usermod: no changes
Dec 02 09:27:12.246 INFO [stderr]    Compiling fern v0.5.6
Dec 02 09:27:12.257 INFO [stderr]    Compiling failure v0.1.2
Dec 02 09:27:14.671 INFO [stderr]    Compiling roguelike_lib v0.1.0 (/source/roguelike_lib)
Dec 02 09:27:14.815 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 02 09:27:14.815 INFO [stderr] 
Dec 02 09:27:14.831 INFO [stderr] error: Could not compile `roguelike_lib`.
Dec 02 09:27:14.831 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 09:27:15.624 INFO [stderr] error: build failed
Dec 02 09:27:15.627 INFO [stderr] su: No module specific data is present
Dec 02 09:27:16.096 INFO running `"docker" "inspect" "2953c3cbda100f68515f8d83efc6aab53f32b2ab93d37fb222e313004685aa9a"`
Dec 02 09:27:16.455 INFO running `"docker" "rm" "-f" "2953c3cbda100f68515f8d83efc6aab53f32b2ab93d37fb222e313004685aa9a"`
Dec 02 09:27:16.703 INFO [stdout] 2953c3cbda100f68515f8d83efc6aab53f32b2ab93d37fb222e313004685aa9a