Aug 01 19:29:20.707 INFO checking utf8-ranges-0.1.3 against 1.27.2 for lazy_static-1
Aug 01 19:29:20.707 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:29:20.707 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:29:20.707 INFO running `"docker" "create" "-v" "/tmp/crater.jd0pkFFRER0X:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 01 19:29:20.928 INFO blam! 357249ade3824690491e341ee7b491e3dce74d094c5443dee8edd22e8f36495f
Aug 01 19:29:20.929 INFO running `"docker" "start" "-a" "357249ade3824690491e341ee7b491e3dce74d094c5443dee8edd22e8f36495f"`
Aug 01 19:29:21.851 INFO kablam!     Checking utf8-ranges v0.1.3 (file:///source)
Aug 01 19:29:21.856 INFO kablam!     Checking quickcheck v0.2.27
Aug 01 19:29:25.794 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:29:25.794 INFO kablam!  --> benches/bench.rs:1:1
Aug 01 19:29:25.794 INFO kablam!   |
Aug 01 19:29:25.794 INFO kablam! 1 | #![feature(test)]
Aug 01 19:29:25.794 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 19:29:25.794 INFO kablam! 
Aug 01 19:29:25.795 INFO kablam! error: aborting due to previous error
Aug 01 19:29:25.795 INFO kablam! 
Aug 01 19:29:25.795 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:29:25.803 INFO kablam! error: Could not compile `utf8-ranges`.
Aug 01 19:29:25.804 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:29:26.734 INFO kablam! error: build failed
Aug 01 19:29:26.738 INFO kablam! su: No module specific data is present
Aug 01 19:29:27.310 INFO running `"docker" "rm" "-f" "357249ade3824690491e341ee7b491e3dce74d094c5443dee8edd22e8f36495f"`
Aug 01 19:29:27.495 INFO blam! 357249ade3824690491e341ee7b491e3dce74d094c5443dee8edd22e8f36495f