Dec 03 18:07:56.566 INFO testing bitfield-register-macro-0.2.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 18:07:56.566 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 03 18:07:56.940 INFO [stdout] 2ae9b2e1807b9fe2edeeb2d19306d4b8c0df7c5ad1170287b85a9f4482e18abc
Dec 03 18:07:56.942 INFO running `"docker" "start" "-a" "2ae9b2e1807b9fe2edeeb2d19306d4b8c0df7c5ad1170287b85a9f4482e18abc"`
Dec 03 18:07:57.928 INFO [stderr] usermod: no changes
Dec 03 18:07:57.979 INFO [stderr]    Compiling bitfield-register-macro v0.2.1 (/source)
Dec 03 18:08:02.323 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 18:08:02.323 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 18:08:02.323 INFO [stderr]   |
Dec 03 18:08:02.323 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 03 18:08:02.323 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:08:02.323 INFO [stderr] 
Dec 03 18:08:02.323 INFO [stderr] error: aborting due to previous error
Dec 03 18:08:02.323 INFO [stderr] 
Dec 03 18:08:02.323 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 18:08:02.328 INFO [stderr] error: Could not compile `bitfield-register-macro`.
Dec 03 18:08:02.328 INFO [stderr] 
Dec 03 18:08:02.328 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 18:08:02.335 INFO [stderr] su: No module specific data is present
Dec 03 18:08:03.403 INFO running `"docker" "inspect" "2ae9b2e1807b9fe2edeeb2d19306d4b8c0df7c5ad1170287b85a9f4482e18abc"`
Dec 03 18:08:03.648 INFO running `"docker" "rm" "-f" "2ae9b2e1807b9fe2edeeb2d19306d4b8c0df7c5ad1170287b85a9f4482e18abc"`
Dec 03 18:08:03.729 INFO [stdout] 2ae9b2e1807b9fe2edeeb2d19306d4b8c0df7c5ad1170287b85a9f4482e18abc