Dec 03 02:02:56.115 INFO testing mcf-config-demo-lib-0.1.0 against 1.30.1 for beta-1.31-5
Dec 03 02:02:56.115 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 03 02:02:56.307 INFO [stdout] 835dbb450984c896284b9474659cf7b6d18cdd13b4fc23a3d02f0ca37ba2ae5a
Dec 03 02:02:56.311 INFO running `"docker" "start" "-a" "835dbb450984c896284b9474659cf7b6d18cdd13b4fc23a3d02f0ca37ba2ae5a"`
Dec 03 02:02:56.716 INFO [stderr] usermod: no changes
Dec 03 02:02:56.746 INFO [stderr]    Compiling mcf-config-demo-settings v0.1.0
Dec 03 02:02:56.773 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 03 02:02:56.773 INFO [stderr] 
Dec 03 02:02:56.778 INFO [stderr] error: Could not compile `mcf-config-demo-settings`.
Dec 03 02:02:56.778 INFO [stderr] 
Dec 03 02:02:56.778 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 02:02:56.780 INFO [stderr] su: No module specific data is present
Dec 03 02:02:57.022 INFO running `"docker" "inspect" "835dbb450984c896284b9474659cf7b6d18cdd13b4fc23a3d02f0ca37ba2ae5a"`
Dec 03 02:02:57.144 INFO running `"docker" "rm" "-f" "835dbb450984c896284b9474659cf7b6d18cdd13b4fc23a3d02f0ca37ba2ae5a"`
Dec 03 02:02:57.226 INFO [stdout] 835dbb450984c896284b9474659cf7b6d18cdd13b4fc23a3d02f0ca37ba2ae5a