Dec 01 08:15:19.765 INFO testing museun/rcc against 1.30.1 for beta-1.31-5
Dec 01 08:15:19.765 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 08:15:20.189 INFO [stdout] 544bf09694fbf30b4e192cdf224cb134019fbeac5c680f8c4c02a869db01e525
Dec 01 08:15:20.193 INFO running `"docker" "start" "-a" "544bf09694fbf30b4e192cdf224cb134019fbeac5c680f8c4c02a869db01e525"`
Dec 01 08:15:21.467 INFO [stderr] usermod: no changes
Dec 01 08:15:21.547 INFO [stderr]    Compiling rcc v0.1.0 (/source)
Dec 01 08:15:22.652 INFO [stderr] warning: unknown lint: `cyclomatic_complexity`
Dec 01 08:15:22.652 INFO [stderr]  --> src/semantics.rs:1:10
Dec 01 08:15:22.652 INFO [stderr]   |
Dec 01 08:15:22.652 INFO [stderr] 1 | #![allow(cyclomatic_complexity)]
Dec 01 08:15:22.652 INFO [stderr]   |          ^^^^^^^^^^^^^^^^^^^^^
Dec 01 08:15:22.652 INFO [stderr]   |
Dec 01 08:15:22.652 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 01 08:15:22.652 INFO [stderr] 
Dec 01 08:15:22.967 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 08:15:22.967 INFO [stderr]  --> src/lib.rs:2:1
Dec 01 08:15:22.967 INFO [stderr]   |
Dec 01 08:15:22.967 INFO [stderr] 2 | #![feature(nll)]
Dec 01 08:15:22.967 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 01 08:15:22.967 INFO [stderr] 
Dec 01 08:15:22.993 INFO [stderr] error: aborting due to previous error
Dec 01 08:15:22.993 INFO [stderr] 
Dec 01 08:15:22.993 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 08:15:23.000 INFO [stderr] error: Could not compile `rcc`.
Dec 01 08:15:23.000 INFO [stderr] 
Dec 01 08:15:23.000 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 08:15:23.003 INFO [stderr] su: No module specific data is present
Dec 01 08:15:23.871 INFO running `"docker" "inspect" "544bf09694fbf30b4e192cdf224cb134019fbeac5c680f8c4c02a869db01e525"`
Dec 01 08:15:24.203 INFO running `"docker" "rm" "-f" "544bf09694fbf30b4e192cdf224cb134019fbeac5c680f8c4c02a869db01e525"`
Dec 01 08:15:24.481 INFO [stdout] 544bf09694fbf30b4e192cdf224cb134019fbeac5c680f8c4c02a869db01e525
