Dec 01 04:32:26.418 INFO testing rookie1024/Alas against 1.30.1 for beta-1.31-5
Dec 01 04:32:26.419 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 01 04:32:26.780 INFO [stdout] 38983d1002a7f923eef53ebe4fe98781600c0448bbf86c5a9d5871a5bc7348fb
Dec 01 04:32:26.785 INFO running `"docker" "start" "-a" "38983d1002a7f923eef53ebe4fe98781600c0448bbf86c5a9d5871a5bc7348fb"`
Dec 01 04:32:28.009 INFO [stderr] usermod: no changes
Dec 01 04:32:28.048 INFO [stderr]    Compiling alas v0.1.0 (/source)
Dec 01 04:32:28.123 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 01 04:32:28.123 INFO [stderr] 
Dec 01 04:32:28.144 INFO [stderr] error: Could not compile `alas`.
Dec 01 04:32:28.144 INFO [stderr] 
Dec 01 04:32:28.144 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 04:32:28.145 INFO [stderr] su: No module specific data is present
Dec 01 04:32:28.906 INFO running `"docker" "inspect" "38983d1002a7f923eef53ebe4fe98781600c0448bbf86c5a9d5871a5bc7348fb"`
Dec 01 04:32:29.131 INFO running `"docker" "rm" "-f" "38983d1002a7f923eef53ebe4fe98781600c0448bbf86c5a9d5871a5bc7348fb"`
Dec 01 04:32:29.427 INFO [stdout] 38983d1002a7f923eef53ebe4fe98781600c0448bbf86c5a9d5871a5bc7348fb