Aug 02 15:14:33.564 INFO checking aecs-1.2.3 against 1.27.2 for lazy_static-1
Aug 02 15:14:33.564 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:14:33.564 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:14:33.564 INFO running `"docker" "create" "-v" "/tmp/crater.TjMAjVRj2eYY:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 02 15:14:33.783 INFO blam! 6ca09fb15dd12090f2627a5ac4914641f5b8c6a152f02574af7d1c0f722e1288
Aug 02 15:14:33.785 INFO running `"docker" "start" "-a" "6ca09fb15dd12090f2627a5ac4914641f5b8c6a152f02574af7d1c0f722e1288"`
Aug 02 15:14:34.713 INFO kablam!     Checking aecs v1.2.3 (file:///source)
Aug 02 15:14:37.196 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 15:14:37.196 INFO kablam!   --> benches/ecs.rs:17:1
Aug 02 15:14:37.196 INFO kablam!    |
Aug 02 15:14:37.196 INFO kablam! 17 | #![feature(test)]
Aug 02 15:14:37.196 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 15:14:37.196 INFO kablam! 
Aug 02 15:14:37.197 INFO kablam! error: aborting due to previous error
Aug 02 15:14:37.197 INFO kablam! 
Aug 02 15:14:37.197 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 15:14:37.222 INFO kablam! error: Could not compile `aecs`.
Aug 02 15:14:37.222 INFO kablam! 
Aug 02 15:14:37.222 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 15:14:37.224 INFO kablam! su: No module specific data is present
Aug 02 15:14:38.223 INFO running `"docker" "rm" "-f" "6ca09fb15dd12090f2627a5ac4914641f5b8c6a152f02574af7d1c0f722e1288"`
Aug 02 15:14:38.465 INFO blam! 6ca09fb15dd12090f2627a5ac4914641f5b8c6a152f02574af7d1c0f722e1288