Dec 02 18:15:53.264 INFO testing rusty_alfred-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 18:15:53.264 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 18:15:53.850 INFO [stdout] ac70be53aeeb6dc3301be2c0b3eb192f0fa1f393106bc3cb3140cd8261b41061
Dec 02 18:15:53.853 INFO running `"docker" "start" "-a" "ac70be53aeeb6dc3301be2c0b3eb192f0fa1f393106bc3cb3140cd8261b41061"`
Dec 02 18:15:54.902 INFO [stderr] usermod: no changes
Dec 02 18:15:55.047 INFO [stderr]    Compiling serde_codegen v0.8.23
Dec 02 18:15:59.247 INFO [stderr]    Compiling serde_derive v0.8.23
Dec 02 18:16:04.516 INFO [stderr]    Compiling rusty_alfred v0.1.1 (/source)
Dec 02 18:16:06.055 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:16:06.055 INFO [stderr]   --> src/lib.rs:21:1
Dec 02 18:16:06.055 INFO [stderr]    |
Dec 02 18:16:06.055 INFO [stderr] 21 | #![feature(proc_macro)]
Dec 02 18:16:06.055 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 18:16:06.055 INFO [stderr] 
Dec 02 18:16:06.055 INFO [stderr] error: aborting due to previous error
Dec 02 18:16:06.055 INFO [stderr] 
Dec 02 18:16:06.055 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:16:06.066 INFO [stderr] error: Could not compile `rusty_alfred`.
Dec 02 18:16:06.067 INFO [stderr] 
Dec 02 18:16:06.067 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 18:16:06.067 INFO [stderr] su: No module specific data is present
Dec 02 18:16:06.897 INFO running `"docker" "inspect" "ac70be53aeeb6dc3301be2c0b3eb192f0fa1f393106bc3cb3140cd8261b41061"`
Dec 02 18:16:07.209 INFO running `"docker" "rm" "-f" "ac70be53aeeb6dc3301be2c0b3eb192f0fa1f393106bc3cb3140cd8261b41061"`
Dec 02 18:16:07.494 INFO [stdout] ac70be53aeeb6dc3301be2c0b3eb192f0fa1f393106bc3cb3140cd8261b41061