Aug 02 09:21:44.256 INFO checking genmesh-0.4.3 against 1.27.2 for lazy_static-1
Aug 02 09:21:44.256 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:21:44.256 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:21:44.256 INFO running `"docker" "create" "-v" "/tmp/crater.V5w6QiFVoHAc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 09:21:44.392 INFO blam! 0a1e49a12a1b419d7724b6ab5ee5d1be832a913798a93107413e03fad15d45c0
Aug 02 09:21:44.392 INFO running `"docker" "start" "-a" "0a1e49a12a1b419d7724b6ab5ee5d1be832a913798a93107413e03fad15d45c0"`
Aug 02 09:21:45.959 INFO kablam!     Checking genmesh v0.4.3 (file:///source)
Aug 02 09:21:49.258 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:21:49.258 INFO kablam!   --> benches/bench.rs:15:1
Aug 02 09:21:49.258 INFO kablam!    |
Aug 02 09:21:49.258 INFO kablam! 15 | #![feature(test)]
Aug 02 09:21:49.258 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 02 09:21:49.280 INFO kablam! 
Aug 02 09:21:49.281 INFO kablam! error: aborting due to previous error
Aug 02 09:21:49.281 INFO kablam! 
Aug 02 09:21:49.281 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:21:49.296 INFO kablam! error: Could not compile `genmesh`.
Aug 02 09:21:49.296 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:21:50.039 INFO kablam! error: build failed
Aug 02 09:21:50.040 INFO kablam! su: No module specific data is present
Aug 02 09:21:51.471 INFO running `"docker" "rm" "-f" "0a1e49a12a1b419d7724b6ab5ee5d1be832a913798a93107413e03fad15d45c0"`
Aug 02 09:21:51.656 INFO blam! 0a1e49a12a1b419d7724b6ab5ee5d1be832a913798a93107413e03fad15d45c0