Dec 01 10:14:36.763 INFO testing markcol/board100 against 1.30.1 for beta-1.31-5
Dec 01 10:14:36.763 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 01 10:14:36.955 INFO [stdout] b5a83785d0a3b76e098634bd9e484f52a88323ae283511a377f85714b6c3cceb
Dec 01 10:14:36.961 INFO running `"docker" "start" "-a" "b5a83785d0a3b76e098634bd9e484f52a88323ae283511a377f85714b6c3cceb"`
Dec 01 10:14:37.403 INFO [stderr] usermod: no changes
Dec 01 10:14:37.461 INFO [stderr]    Compiling syn v0.15.17
Dec 01 10:14:47.146 INFO [stderr]    Compiling synstructure v0.10.1
Dec 01 10:14:51.367 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 01 10:14:54.641 INFO [stderr]    Compiling failure v0.1.3
Dec 01 10:14:55.464 INFO [stderr]    Compiling square100 v0.1.0 (/source)
Dec 01 10:14:55.483 INFO [stderr] error: Edition 2018 is unstable and only available for nightly builds of rustc.
Dec 01 10:14:55.483 INFO [stderr] 
Dec 01 10:14:55.489 INFO [stderr] error: Could not compile `square100`.
Dec 01 10:14:55.489 INFO [stderr] 
Dec 01 10:14:55.489 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 10:14:55.490 INFO [stderr] su: No module specific data is present
Dec 01 10:14:55.770 INFO running `"docker" "inspect" "b5a83785d0a3b76e098634bd9e484f52a88323ae283511a377f85714b6c3cceb"`
Dec 01 10:14:55.851 INFO running `"docker" "rm" "-f" "b5a83785d0a3b76e098634bd9e484f52a88323ae283511a377f85714b6c3cceb"`
Dec 01 10:14:55.933 INFO [stdout] b5a83785d0a3b76e098634bd9e484f52a88323ae283511a377f85714b6c3cceb
