Aug 02 07:27:23.576 INFO checking handlebars-1.0.0 against 1.27.2 for lazy_static-1
Aug 02 07:27:23.576 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:27:23.576 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:27:23.577 INFO running `"docker" "create" "-v" "/tmp/crater.TH4UMsVR3Omo:/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 07:27:23.794 INFO blam! 87d93ac569f8461eff51a7f881f716a2bf0116b8a51466d4adb38cb4649ec8db
Aug 02 07:27:23.796 INFO running `"docker" "start" "-a" "87d93ac569f8461eff51a7f881f716a2bf0116b8a51466d4adb38cb4649ec8db"`
Aug 02 07:27:25.248 INFO kablam!     Checking handlebars v1.0.0 (file:///source)
Aug 02 07:27:45.948 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:27:45.948 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 07:27:45.948 INFO kablam!   |
Aug 02 07:27:45.948 INFO kablam! 1 | #![feature(test)]
Aug 02 07:27:45.948 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 07:27:45.948 INFO kablam! 
Aug 02 07:27:45.949 INFO kablam! error: aborting due to previous error
Aug 02 07:27:45.949 INFO kablam! 
Aug 02 07:27:45.949 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:27:45.962 INFO kablam! error: Could not compile `handlebars`.
Aug 02 07:27:45.963 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:27:46.911 INFO kablam! error: build failed
Aug 02 07:27:46.912 INFO kablam! su: No module specific data is present
Aug 02 07:27:48.053 INFO running `"docker" "rm" "-f" "87d93ac569f8461eff51a7f881f716a2bf0116b8a51466d4adb38cb4649ec8db"`
Aug 02 07:27:48.148 INFO blam! 87d93ac569f8461eff51a7f881f716a2bf0116b8a51466d4adb38cb4649ec8db