Dec 02 13:05:04.656 INFO testing trim_matches_exactly-0.1.0 against 1.30.1 for beta-1.31-5
Dec 02 13:05:04.656 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 02 13:05:05.086 INFO [stdout] 998335879a9851c7bfc26c5c50989a2a88c363bd16faff4b9c75b5fd17b84662
Dec 02 13:05:05.093 INFO running `"docker" "start" "-a" "998335879a9851c7bfc26c5c50989a2a88c363bd16faff4b9c75b5fd17b84662"`
Dec 02 13:05:06.210 INFO [stderr] usermod: no changes
Dec 02 13:05:06.259 INFO [stderr]    Compiling trim_matches_exactly v0.1.0 (/source)
Dec 02 13:05:06.365 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 13:05:06.365 INFO [stderr]  --> src/lib.rs:6:1
Dec 02 13:05:06.366 INFO [stderr]   |
Dec 02 13:05:06.366 INFO [stderr] 6 | #![feature(pattern)]
Dec 02 13:05:06.366 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 02 13:05:06.366 INFO [stderr] 
Dec 02 13:05:06.367 INFO [stderr] error: aborting due to previous error
Dec 02 13:05:06.367 INFO [stderr] 
Dec 02 13:05:06.367 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 13:05:06.375 INFO [stderr] error: Could not compile `trim_matches_exactly`.
Dec 02 13:05:06.375 INFO [stderr] 
Dec 02 13:05:06.375 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 13:05:06.376 INFO [stderr] su: No module specific data is present
Dec 02 13:05:06.995 INFO running `"docker" "inspect" "998335879a9851c7bfc26c5c50989a2a88c363bd16faff4b9c75b5fd17b84662"`
Dec 02 13:05:07.281 INFO running `"docker" "rm" "-f" "998335879a9851c7bfc26c5c50989a2a88c363bd16faff4b9c75b5fd17b84662"`
Dec 02 13:05:07.547 INFO [stdout] 998335879a9851c7bfc26c5c50989a2a88c363bd16faff4b9c75b5fd17b84662