Aug 02 10:47:57.387 INFO checking enum-unitary-0.3.3 against 1.27.2 for lazy_static-1
Aug 02 10:47:57.387 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:47:57.387 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:47:57.388 INFO running `"docker" "create" "-v" "/tmp/crater.T9SbRbAIngvF:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 10:47:57.631 INFO blam! 3515dcbdd88ba7635adad2c15aa05ee5dcc41b62b680f1a3a8340cb23fdabcf1
Aug 02 10:47:57.633 INFO running `"docker" "start" "-a" "3515dcbdd88ba7635adad2c15aa05ee5dcc41b62b680f1a3a8340cb23fdabcf1"`
Aug 02 10:47:58.868 INFO kablam!     Checking enum_derive v0.1.7
Aug 02 10:47:58.868 INFO kablam!     Checking macro-attr v0.2.0
Aug 02 10:47:59.557 INFO kablam!     Checking enum-unitary v0.3.3 (file:///source)
Aug 02 10:48:00.254 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:48:00.255 INFO kablam!   --> src/lib.rs:20:1
Aug 02 10:48:00.255 INFO kablam!    |
Aug 02 10:48:00.255 INFO kablam! 20 | #![feature(use_extern_macros)]
Aug 02 10:48:00.255 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:48:00.255 INFO kablam! 
Aug 02 10:48:00.255 INFO kablam! error: aborting due to previous error
Aug 02 10:48:00.255 INFO kablam! 
Aug 02 10:48:00.255 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:48:00.264 INFO kablam! error: Could not compile `enum-unitary`.
Aug 02 10:48:00.266 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:48:00.337 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:48:00.337 INFO kablam!   --> src/lib.rs:19:19
Aug 02 10:48:00.337 INFO kablam!    |
Aug 02 10:48:00.337 INFO kablam! 19 | #![cfg_attr(test, feature(const_fn))]
Aug 02 10:48:00.337 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^
Aug 02 10:48:00.337 INFO kablam! 
Aug 02 10:48:00.337 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:48:00.337 INFO kablam!   --> src/lib.rs:20:1
Aug 02 10:48:00.337 INFO kablam!    |
Aug 02 10:48:00.337 INFO kablam! 20 | #![feature(use_extern_macros)]
Aug 02 10:48:00.338 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:48:00.338 INFO kablam! 
Aug 02 10:48:00.350 INFO kablam! error: aborting due to 2 previous errors
Aug 02 10:48:00.350 INFO kablam! 
Aug 02 10:48:00.350 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:48:00.360 INFO kablam! error: Could not compile `enum-unitary`.
Aug 02 10:48:00.360 INFO kablam! 
Aug 02 10:48:00.360 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:48:00.362 INFO kablam! su: No module specific data is present
Aug 02 10:48:01.182 INFO running `"docker" "rm" "-f" "3515dcbdd88ba7635adad2c15aa05ee5dcc41b62b680f1a3a8340cb23fdabcf1"`
Aug 02 10:48:01.351 INFO blam! 3515dcbdd88ba7635adad2c15aa05ee5dcc41b62b680f1a3a8340cb23fdabcf1