Dec 03 19:53:27.037 INFO testing ai-graph-0.0.18 against 1.30.1 for beta-1.31-5
Dec 03 19:53:27.037 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 19:53:27.578 INFO [stdout] 80aab04fa2cd8701f0d0e201fba26f1a6c3c4b4e94c0a521dd6815df3087b04e
Dec 03 19:53:27.580 INFO running `"docker" "start" "-a" "80aab04fa2cd8701f0d0e201fba26f1a6c3c4b4e94c0a521dd6815df3087b04e"`
Dec 03 19:53:29.339 INFO [stderr] usermod: no changes
Dec 03 19:53:29.479 INFO [stderr]    Compiling ai-graph v0.0.18 (/source)
Dec 03 19:53:29.535 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 03 19:53:29.535 INFO [stderr] 
Dec 03 19:53:29.543 INFO [stderr] error: Could not compile `ai-graph`.
Dec 03 19:53:29.543 INFO [stderr] 
Dec 03 19:53:29.543 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 19:53:29.543 INFO [stderr] su: No module specific data is present
Dec 03 19:53:30.318 INFO running `"docker" "inspect" "80aab04fa2cd8701f0d0e201fba26f1a6c3c4b4e94c0a521dd6815df3087b04e"`
Dec 03 19:53:30.627 INFO running `"docker" "rm" "-f" "80aab04fa2cd8701f0d0e201fba26f1a6c3c4b4e94c0a521dd6815df3087b04e"`
Dec 03 19:53:30.931 INFO [stdout] 80aab04fa2cd8701f0d0e201fba26f1a6c3c4b4e94c0a521dd6815df3087b04e