Aug 02 07:13:15.157 INFO checking horrorshow-0.6.4 against 1.27.2 for lazy_static-1
Aug 02 07:13:15.157 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:13:15.157 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:13:15.157 INFO running `"docker" "create" "-v" "/tmp/crater.SwkN850dfiQf:/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 07:13:15.322 INFO blam! ee2e5bdf2d3c01ba4cf15e295fdf4d7d483d899635d98b20bef2f4582527ac38
Aug 02 07:13:15.327 INFO running `"docker" "start" "-a" "ee2e5bdf2d3c01ba4cf15e295fdf4d7d483d899635d98b20bef2f4582527ac38"`
Aug 02 07:13:16.827 INFO kablam!     Checking horrorshow v0.6.4 (file:///source)
Aug 02 07:13:19.742 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:13:19.743 INFO kablam!  --> benches/horrorshow.rs:1:1
Aug 02 07:13:19.743 INFO kablam!   |
Aug 02 07:13:19.743 INFO kablam! 1 | #![feature(test)]
Aug 02 07:13:19.743 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 07:13:19.743 INFO kablam! 
Aug 02 07:13:19.743 INFO kablam! error: aborting due to previous error
Aug 02 07:13:19.743 INFO kablam! 
Aug 02 07:13:19.743 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:13:19.749 INFO kablam! error: Could not compile `horrorshow`.
Aug 02 07:13:19.750 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:13:20.666 INFO kablam! error: build failed
Aug 02 07:13:20.667 INFO kablam! su: No module specific data is present
Aug 02 07:13:21.464 INFO running `"docker" "rm" "-f" "ee2e5bdf2d3c01ba4cf15e295fdf4d7d483d899635d98b20bef2f4582527ac38"`
Aug 02 07:13:21.587 INFO blam! ee2e5bdf2d3c01ba4cf15e295fdf4d7d483d899635d98b20bef2f4582527ac38