Nov 02 05:44:14.753 INFO testing scalar-0.1.8 against 1.30.0 for beta-1.31-1
Nov 02 05:44:14.755 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 02 05:44:15.117 INFO blam! f84855af7cd70d72eb3d8050e0c104910bfde49093650ea739634296e955f87a
Nov 02 05:44:15.175 INFO running `"docker" "start" "-a" "f84855af7cd70d72eb3d8050e0c104910bfde49093650ea739634296e955f87a"`
Nov 02 05:44:16.198 INFO kablam! usermod: no changes
Nov 02 05:44:16.275 INFO kablam!    Compiling scalar v0.1.8 (/source)
Nov 02 05:44:17.003 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 05:44:17.003 INFO kablam!  --> src/lib.rs:1:1
Nov 02 05:44:17.003 INFO kablam!   |
Nov 02 05:44:17.003 INFO kablam! 1 | #![feature(op_assign_traits)]
Nov 02 05:44:17.003 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 05:44:17.003 INFO kablam! 
Nov 02 05:44:17.003 INFO kablam! error: aborting due to previous error
Nov 02 05:44:17.003 INFO kablam! 
Nov 02 05:44:17.003 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 05:44:17.008 INFO kablam! error: Could not compile `scalar`.
Nov 02 05:44:17.008 INFO kablam! 
Nov 02 05:44:17.008 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 05:44:17.019 INFO kablam! su: No module specific data is present
Nov 02 05:44:17.868 INFO running `"docker" "rm" "-f" "f84855af7cd70d72eb3d8050e0c104910bfde49093650ea739634296e955f87a"`
Nov 02 05:44:18.201 INFO blam! f84855af7cd70d72eb3d8050e0c104910bfde49093650ea739634296e955f87a
