Aug 01 22:19:20.222 INFO checking shepplogan-1.0.0 against 1.27.2 for lazy_static-1
Aug 01 22:19:20.222 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:19:20.222 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:19:20.222 INFO running `"docker" "create" "-v" "/tmp/crater.itg8sqdpjjKy:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 22:19:20.482 INFO blam! 5b4feadaa944bda7fcc14e44fbb97bc77140fd000a92c82a30aeb039514a8233
Aug 01 22:19:20.485 INFO running `"docker" "start" "-a" "5b4feadaa944bda7fcc14e44fbb97bc77140fd000a92c82a30aeb039514a8233"`
Aug 01 22:19:21.682 INFO kablam!     Checking shepplogan v1.0.0 (file:///source)
Aug 01 22:19:23.082 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:19:23.082 INFO kablam!   --> benches/bench.rs:10:1
Aug 01 22:19:23.082 INFO kablam!    |
Aug 01 22:19:23.082 INFO kablam! 10 | #![feature(test)]
Aug 01 22:19:23.082 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 01 22:19:23.083 INFO kablam! 
Aug 01 22:19:23.083 INFO kablam! error: aborting due to previous error
Aug 01 22:19:23.083 INFO kablam! 
Aug 01 22:19:23.083 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:19:23.089 INFO kablam! error: Could not compile `shepplogan`.
Aug 01 22:19:23.090 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 22:19:23.652 INFO kablam! error: build failed
Aug 01 22:19:23.654 INFO kablam! su: No module specific data is present
Aug 01 22:19:24.267 INFO running `"docker" "rm" "-f" "5b4feadaa944bda7fcc14e44fbb97bc77140fd000a92c82a30aeb039514a8233"`
Aug 01 22:19:24.437 INFO blam! 5b4feadaa944bda7fcc14e44fbb97bc77140fd000a92c82a30aeb039514a8233