Aug 02 04:22:03.722 INFO checking min-max-heap-1.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 04:22:03.722 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:22:03.722 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:22:03.722 INFO running `"docker" "create" "-v" "/tmp/crater.fXlQutErIljp:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 04:22:03.998 INFO blam! efc9e5d073981ef845a87d8e3dffbe28ea3b39d4e8b6ae7ff96754183727b931
Aug 02 04:22:04.001 INFO running `"docker" "start" "-a" "efc9e5d073981ef845a87d8e3dffbe28ea3b39d4e8b6ae7ff96754183727b931"`
Aug 02 04:22:05.239 INFO kablam!     Checking min-max-heap v1.2.0 (file:///source)
Aug 02 04:22:06.879 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:22:06.880 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 04:22:06.880 INFO kablam!   |
Aug 02 04:22:06.880 INFO kablam! 1 | #![feature(test)]
Aug 02 04:22:06.880 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:22:06.880 INFO kablam! 
Aug 02 04:22:06.880 INFO kablam! error: aborting due to previous error
Aug 02 04:22:06.880 INFO kablam! 
Aug 02 04:22:06.880 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:22:06.888 INFO kablam! error: Could not compile `min-max-heap`.
Aug 02 04:22:06.889 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:22:07.477 INFO kablam! error: build failed
Aug 02 04:22:07.479 INFO kablam! su: No module specific data is present
Aug 02 04:22:08.087 INFO running `"docker" "rm" "-f" "efc9e5d073981ef845a87d8e3dffbe28ea3b39d4e8b6ae7ff96754183727b931"`
Aug 02 04:22:08.241 INFO blam! efc9e5d073981ef845a87d8e3dffbe28ea3b39d4e8b6ae7ff96754183727b931