Nov 03 01:57:01.406 INFO testing bitfield-register-macro-0.2.1 against 1.30.0 for beta-1.31-1
Nov 03 01:57:01.406 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-7/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Nov 03 01:57:01.919 INFO blam! 8f3d34d82188a25f3638daa216399685ccec89394465640f6e3318b4005011ba
Nov 03 01:57:01.921 INFO running `"docker" "start" "-a" "8f3d34d82188a25f3638daa216399685ccec89394465640f6e3318b4005011ba"`
Nov 03 01:57:02.719 INFO kablam! usermod: no changes
Nov 03 01:57:02.799 INFO kablam!    Compiling bitfield-register-macro v0.2.1 (/source)
Nov 03 01:57:06.851 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 03 01:57:06.851 INFO kablam!  --> src/lib.rs:1:1
Nov 03 01:57:06.852 INFO kablam!   |
Nov 03 01:57:06.852 INFO kablam! 1 | #![feature(proc_macro)]
Nov 03 01:57:06.852 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 03 01:57:06.853 INFO kablam! 
Nov 03 01:57:06.853 INFO kablam! error: aborting due to previous error
Nov 03 01:57:06.853 INFO kablam! 
Nov 03 01:57:06.853 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 03 01:57:06.854 INFO kablam! error: Could not compile `bitfield-register-macro`.
Nov 03 01:57:06.854 INFO kablam! 
Nov 03 01:57:06.854 INFO kablam! To learn more, run the command again with --verbose.
Nov 03 01:57:06.855 INFO kablam! su: No module specific data is present
Nov 03 01:57:07.711 INFO running `"docker" "rm" "-f" "8f3d34d82188a25f3638daa216399685ccec89394465640f6e3318b4005011ba"`
Nov 03 01:57:07.958 INFO blam! 8f3d34d82188a25f3638daa216399685ccec89394465640f6e3318b4005011ba
