Aug 01 18:44:42.375 INFO checking whirlpool-asm-0.5.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 18:44:42.376 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:44:42.376 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 18:44:42.376 INFO running `"docker" "create" "-v" "/tmp/crater.3jKJCAZYxb9A:/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 18:44:42.620 INFO blam! 903f8a807ed400051fa81563be822c524ef0ff4dc83a08b2398ba94247c86e4e
Aug 01 18:44:42.622 INFO running `"docker" "start" "-a" "903f8a807ed400051fa81563be822c524ef0ff4dc83a08b2398ba94247c86e4e"`
Aug 01 18:44:43.812 INFO kablam!    Compiling whirlpool-asm v0.5.1 (file:///source)
Aug 01 18:44:45.985 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 18:44:45.985 INFO kablam!  --> benches/lib.rs:2:1
Aug 01 18:44:45.985 INFO kablam!   |
Aug 01 18:44:45.986 INFO kablam! 2 | #![feature(test)]
Aug 01 18:44:45.986 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 18:44:45.986 INFO kablam! 
Aug 01 18:44:45.986 INFO kablam! error: aborting due to previous error
Aug 01 18:44:45.986 INFO kablam! 
Aug 01 18:44:45.986 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 18:44:45.993 INFO kablam! error: Could not compile `whirlpool-asm`.
Aug 01 18:44:45.994 INFO kablam! 
Aug 01 18:44:45.994 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 18:44:45.996 INFO kablam! su: No module specific data is present
Aug 01 18:44:46.495 INFO running `"docker" "rm" "-f" "903f8a807ed400051fa81563be822c524ef0ff4dc83a08b2398ba94247c86e4e"`
Aug 01 18:44:46.648 INFO blam! 903f8a807ed400051fa81563be822c524ef0ff4dc83a08b2398ba94247c86e4e