Aug 02 15:14:32.830 INFO checking aecs-1.2.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 15:14:32.831 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:14:32.831 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:14:32.831 INFO running `"docker" "create" "-v" "/tmp/crater.fjNgBDXiXjO7:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+tmplazy:/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 15:14:33.170 INFO blam! 65141372d2dd3c138973025910e0f74e52e0047a1260cee9c49f3216f0fee256
Aug 02 15:14:33.177 INFO running `"docker" "start" "-a" "65141372d2dd3c138973025910e0f74e52e0047a1260cee9c49f3216f0fee256"`
Aug 02 15:14:34.147 INFO kablam!     Checking aecs v1.2.3 (file:///source)
Aug 02 15:14:36.684 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 15:14:36.684 INFO kablam!   --> benches/ecs.rs:17:1
Aug 02 15:14:36.684 INFO kablam!    |
Aug 02 15:14:36.684 INFO kablam! 17 | #![feature(test)]
Aug 02 15:14:36.684 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 15:14:36.684 INFO kablam! 
Aug 02 15:14:36.685 INFO kablam! error: aborting due to previous error
Aug 02 15:14:36.685 INFO kablam! 
Aug 02 15:14:36.686 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 15:14:36.694 INFO kablam! error: Could not compile `aecs`.
Aug 02 15:14:36.694 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 15:14:36.810 INFO kablam! error: build failed
Aug 02 15:14:36.812 INFO kablam! su: No module specific data is present
Aug 02 15:14:37.989 INFO running `"docker" "rm" "-f" "65141372d2dd3c138973025910e0f74e52e0047a1260cee9c49f3216f0fee256"`
Aug 02 15:14:38.147 INFO blam! 65141372d2dd3c138973025910e0f74e52e0047a1260cee9c49f3216f0fee256