Aug 01 18:22:48.146 INFO checking xvii-0.3.3 against 1.27.2 for lazy_static-1
Aug 01 18:22:48.146 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:22:48.146 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:22:48.146 INFO running `"docker" "create" "-v" "/tmp/crater.SrXAfTAOOX4d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 18:22:48.407 INFO blam! f88baeb0bb0aafb1a708e06dacb2efa6f33c18e016fb6abb7101fa39e70b9f79
Aug 01 18:22:48.410 INFO running `"docker" "start" "-a" "f88baeb0bb0aafb1a708e06dacb2efa6f33c18e016fb6abb7101fa39e70b9f79"`
Aug 01 18:22:49.536 INFO kablam!     Checking xvii v0.3.3 (file:///source)
Aug 01 18:22:50.369 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 18:22:50.369 INFO kablam!  --> benches/convert.rs:1:1
Aug 01 18:22:50.369 INFO kablam!   |
Aug 01 18:22:50.369 INFO kablam! 1 | #![feature(test)]
Aug 01 18:22:50.369 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 18:22:50.369 INFO kablam! 
Aug 01 18:22:50.369 INFO kablam! error: aborting due to previous error
Aug 01 18:22:50.370 INFO kablam! 
Aug 01 18:22:50.370 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 18:22:50.378 INFO kablam! error: Could not compile `xvii`.
Aug 01 18:22:50.378 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 18:22:50.417 INFO kablam! error: build failed
Aug 01 18:22:50.418 INFO kablam! su: No module specific data is present
Aug 01 18:22:50.907 INFO running `"docker" "rm" "-f" "f88baeb0bb0aafb1a708e06dacb2efa6f33c18e016fb6abb7101fa39e70b9f79"`
Aug 01 18:22:51.057 INFO blam! f88baeb0bb0aafb1a708e06dacb2efa6f33c18e016fb6abb7101fa39e70b9f79