Aug 02 07:45:15.616 INFO checking gost94-0.7.0 against 1.27.2 for lazy_static-1
Aug 02 07:45:15.616 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:45:15.616 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 07:45:15.617 INFO running `"docker" "create" "-v" "/tmp/crater.UJAICZ1DHAlo:/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 07:45:15.859 INFO blam! ce97fff19a02cbbb11d3107fb1e7bea065e68752608e16a4bc4141426073ca27
Aug 02 07:45:15.862 INFO running `"docker" "start" "-a" "ce97fff19a02cbbb11d3107fb1e7bea065e68752608e16a4bc4141426073ca27"`
Aug 02 07:45:17.420 INFO kablam!     Checking gost94 v0.7.0 (file:///source)
Aug 02 07:45:18.882 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 07:45:18.883 INFO kablam!  --> benches/lib.rs:2:1
Aug 02 07:45:18.883 INFO kablam!   |
Aug 02 07:45:18.883 INFO kablam! 2 | #![feature(test)]
Aug 02 07:45:18.883 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 07:45:18.883 INFO kablam! 
Aug 02 07:45:18.883 INFO kablam! error: aborting due to previous error
Aug 02 07:45:18.883 INFO kablam! 
Aug 02 07:45:18.883 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 07:45:18.891 INFO kablam! error: Could not compile `gost94`.
Aug 02 07:45:18.891 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 07:45:19.344 INFO kablam! error: build failed
Aug 02 07:45:19.346 INFO kablam! su: No module specific data is present
Aug 02 07:45:19.993 INFO running `"docker" "rm" "-f" "ce97fff19a02cbbb11d3107fb1e7bea065e68752608e16a4bc4141426073ca27"`
Aug 02 07:45:20.160 INFO blam! ce97fff19a02cbbb11d3107fb1e7bea065e68752608e16a4bc4141426073ca27