Aug 01 16:31:00.221 INFO checking iKevinY/ghoti.rs against 1.27.2 for lazy_static-1
Aug 01 16:31:00.221 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 16:31:00.221 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 16:31:00.221 INFO running `"docker" "create" "-v" "/tmp/crater.E9NSUuEJvQgU:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 16:31:00.553 INFO blam! 389c5258cb559b95c0116f93bc7caf2ffeb40195e78dd9380e492e754393d0e4
Aug 01 16:31:00.554 INFO running `"docker" "start" "-a" "389c5258cb559b95c0116f93bc7caf2ffeb40195e78dd9380e492e754393d0e4"`
Aug 01 16:31:01.373 INFO kablam!     Checking ghoti v0.1.0 (file:///source)
Aug 01 16:31:03.863 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 16:31:03.863 INFO kablam!  --> benches/correction.rs:1:1
Aug 01 16:31:03.863 INFO kablam!   |
Aug 01 16:31:03.863 INFO kablam! 1 | #![feature(test)]
Aug 01 16:31:03.863 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 16:31:03.863 INFO kablam! 
Aug 01 16:31:03.864 INFO kablam! error: aborting due to previous error
Aug 01 16:31:03.864 INFO kablam! 
Aug 01 16:31:03.864 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 16:31:03.892 INFO kablam! error: Could not compile `ghoti`.
Aug 01 16:31:03.892 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 16:31:04.301 INFO kablam! error: build failed
Aug 01 16:31:04.303 INFO kablam! su: No module specific data is present
Aug 01 16:31:04.845 INFO running `"docker" "rm" "-f" "389c5258cb559b95c0116f93bc7caf2ffeb40195e78dd9380e492e754393d0e4"`
Aug 01 16:31:05.010 INFO blam! 389c5258cb559b95c0116f93bc7caf2ffeb40195e78dd9380e492e754393d0e4