Aug 01 20:02:11.978 INFO checking tripcode-0.2.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:02:11.978 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:02:11.979 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:02:11.979 INFO running `"docker" "create" "-v" "/tmp/crater.UqJRdAOFQ1eT:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+tmplazy:/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 20:02:12.174 INFO blam! f42e960f98056c1450aadb89f13aba12b3d6018f07d1ee1ea63729519560d86d
Aug 01 20:02:12.176 INFO running `"docker" "start" "-a" "f42e960f98056c1450aadb89f13aba12b3d6018f07d1ee1ea63729519560d86d"`
Aug 01 20:02:13.369 INFO kablam!     Checking tripcode v0.2.1 (file:///source)
Aug 01 20:02:16.690 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:02:16.690 INFO kablam!   --> benches/bench.rs:10:1
Aug 01 20:02:16.690 INFO kablam!    |
Aug 01 20:02:16.690 INFO kablam! 10 | #![feature(test)]
Aug 01 20:02:16.690 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 01 20:02:16.691 INFO kablam! 
Aug 01 20:02:16.691 INFO kablam! error: aborting due to previous error
Aug 01 20:02:16.692 INFO kablam! 
Aug 01 20:02:16.692 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:02:16.702 INFO kablam! error: Could not compile `tripcode`.
Aug 01 20:02:16.703 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:02:18.475 INFO kablam! error: build failed
Aug 01 20:02:18.477 INFO kablam! su: No module specific data is present
Aug 01 20:02:18.995 INFO running `"docker" "rm" "-f" "f42e960f98056c1450aadb89f13aba12b3d6018f07d1ee1ea63729519560d86d"`
Aug 01 20:02:19.182 INFO blam! f42e960f98056c1450aadb89f13aba12b3d6018f07d1ee1ea63729519560d86d