Dec 03 13:47:31.632 INFO testing document-0.5.1 against 1.30.1 for beta-1.31-5
Dec 03 13:47:31.632 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13:47:32.106 INFO [stdout] 93c8a2f45cccf2d97b8f7f76434a0577629714e200af3bc9f87cee17c9f36907
Dec 03 13:47:32.111 INFO running `"docker" "start" "-a" "93c8a2f45cccf2d97b8f7f76434a0577629714e200af3bc9f87cee17c9f36907"`
Dec 03 13:47:33.362 INFO [stderr] usermod: no changes
Dec 03 13:47:33.415 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 03 13:47:33.467 INFO [stderr]    Compiling document v0.5.1 (/source)
Dec 03 13:47:33.503 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 03 13:47:33.503 INFO [stderr] 
Dec 03 13:47:33.503 INFO [stderr] error: Could not compile `document`.
Dec 03 13:47:33.503 INFO [stderr] 
Dec 03 13:47:33.503 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:47:33.506 INFO [stderr] su: No module specific data is present
Dec 03 13:47:34.442 INFO running `"docker" "inspect" "93c8a2f45cccf2d97b8f7f76434a0577629714e200af3bc9f87cee17c9f36907"`
Dec 03 13:47:34.661 INFO running `"docker" "rm" "-f" "93c8a2f45cccf2d97b8f7f76434a0577629714e200af3bc9f87cee17c9f36907"`
Dec 03 13:47:35.003 INFO [stdout] 93c8a2f45cccf2d97b8f7f76434a0577629714e200af3bc9f87cee17c9f36907
