Aug 01 22:24:23.325 INFO checking sha1-asm-0.4.2 against 1.27.2 for lazy_static-1
Aug 01 22:24:23.325 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:24:23.325 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:24:23.325 INFO running `"docker" "create" "-v" "/tmp/crater.Gwor8w9su3xm:/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 01 22:24:23.611 INFO blam! 21e95b15878e7ebdcdbe13331299e89fd1062bdab3e57fa2aef6cb6da034b403
Aug 01 22:24:23.613 INFO running `"docker" "start" "-a" "21e95b15878e7ebdcdbe13331299e89fd1062bdab3e57fa2aef6cb6da034b403"`
Aug 01 22:24:24.618 INFO kablam!    Compiling sha1-asm v0.4.2 (file:///source)
Aug 01 22:24:27.516 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:24:27.516 INFO kablam!  --> benches/lib.rs:2:1
Aug 01 22:24:27.516 INFO kablam!   |
Aug 01 22:24:27.516 INFO kablam! 2 | #![feature(test)]
Aug 01 22:24:27.517 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 22:24:27.517 INFO kablam! 
Aug 01 22:24:27.517 INFO kablam! error: aborting due to previous error
Aug 01 22:24:27.517 INFO kablam! 
Aug 01 22:24:27.517 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:24:27.530 INFO kablam! error: Could not compile `sha1-asm`.
Aug 01 22:24:27.530 INFO kablam! 
Aug 01 22:24:27.530 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 22:24:27.531 INFO kablam! su: No module specific data is present
Aug 01 22:24:28.107 INFO running `"docker" "rm" "-f" "21e95b15878e7ebdcdbe13331299e89fd1062bdab3e57fa2aef6cb6da034b403"`
Aug 01 22:24:28.336 INFO blam! 21e95b15878e7ebdcdbe13331299e89fd1062bdab3e57fa2aef6cb6da034b403