Aug 02 09:58:57.011 INFO checking fluent-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 09:58:57.011 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:58:57.011 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:58:57.011 INFO running `"docker" "create" "-v" "/tmp/crater.Mm5Q9aJ5izCt:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 09:58:57.355 INFO blam! 96c7651933ba7b870e327af6343829acfb9bc2d61be9777329543012b51a8efb
Aug 02 09:58:57.358 INFO running `"docker" "start" "-a" "96c7651933ba7b870e327af6343829acfb9bc2d61be9777329543012b51a8efb"`
Aug 02 09:59:01.290 INFO kablam!     Checking fluent-locale v0.3.2
Aug 02 09:59:02.498 INFO kablam!     Checking fluent v0.2.0 (file:///source)
Aug 02 09:59:06.811 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:59:06.811 INFO kablam!  --> benches/lib.rs:1:1
Aug 02 09:59:06.811 INFO kablam!   |
Aug 02 09:59:06.811 INFO kablam! 1 | #![feature(test)]
Aug 02 09:59:06.811 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 09:59:06.811 INFO kablam! 
Aug 02 09:59:06.812 INFO kablam! error: aborting due to previous error
Aug 02 09:59:06.812 INFO kablam! 
Aug 02 09:59:06.813 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:59:06.837 INFO kablam! error: Could not compile `fluent`.
Aug 02 09:59:06.838 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:59:07.891 INFO kablam! error: build failed
Aug 02 09:59:07.892 INFO kablam! su: No module specific data is present
Aug 02 09:59:09.188 INFO running `"docker" "rm" "-f" "96c7651933ba7b870e327af6343829acfb9bc2d61be9777329543012b51a8efb"`
Aug 02 09:59:09.418 INFO blam! 96c7651933ba7b870e327af6343829acfb9bc2d61be9777329543012b51a8efb