Nov 02 12:00:21.944 INFO testing mostinefficientsha-0.1.0 against 1.30.0 for beta-1.31-1
Nov 02 12:00:21.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 12:00:22.196 INFO blam! 3578545b868f79a62da7202e55565374cf358f57a9d652374a3ec8d55d4e7c7f
Nov 02 12:00:22.199 INFO running `"docker" "start" "-a" "3578545b868f79a62da7202e55565374cf358f57a9d652374a3ec8d55d4e7c7f"`
Nov 02 12:00:23.451 INFO kablam! usermod: no changes
Nov 02 12:00:23.498 INFO kablam!    Compiling mostinefficientsha v0.1.0 (/source)
Nov 02 12:00:24.196 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Nov 02 12:00:24.196 INFO kablam!  --> src/lib.rs:1:1
Nov 02 12:00:24.196 INFO kablam!   |
Nov 02 12:00:24.197 INFO kablam! 1 | #![feature(test)]
Nov 02 12:00:24.197 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Nov 02 12:00:24.197 INFO kablam! 
Nov 02 12:00:24.198 INFO kablam! error: aborting due to previous error
Nov 02 12:00:24.198 INFO kablam! 
Nov 02 12:00:24.198 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Nov 02 12:00:24.203 INFO kablam! error: Could not compile `mostinefficientsha`.
Nov 02 12:00:24.203 INFO kablam! 
Nov 02 12:00:24.203 INFO kablam! To learn more, run the command again with --verbose.
Nov 02 12:00:24.204 INFO kablam! su: No module specific data is present
Nov 02 12:00:24.493 INFO running `"docker" "rm" "-f" "3578545b868f79a62da7202e55565374cf358f57a9d652374a3ec8d55d4e7c7f"`
Nov 02 12:00:24.555 INFO blam! 3578545b868f79a62da7202e55565374cf358f57a9d652374a3ec8d55d4e7c7f
