Aug 02 13:01:41.355 INFO checking chalk-macros-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 13:01:41.355 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:41.355 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 13:01:41.355 INFO running `"docker" "create" "-v" "/tmp/crater.2xvS880sx7YR:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 02 13:01:41.600 INFO blam! 06163ebb028c36713e7befc936793203ff0e0aa8591c8a94eb7501e65a5b40d4
Aug 02 13:01:41.600 INFO running `"docker" "start" "-a" "06163ebb028c36713e7befc936793203ff0e0aa8591c8a94eb7501e65a5b40d4"`
Aug 02 13:01:42.493 INFO kablam!     Checking chalk-macros v0.1.0 (file:///source)
Aug 02 13:01:43.182 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:43.182 INFO kablam!  --> src/lib.rs:1:1
Aug 02 13:01:43.182 INFO kablam!   |
Aug 02 13:01:43.182 INFO kablam! 1 | #![feature(crate_visibility_modifier)]
Aug 02 13:01:43.182 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:43.182 INFO kablam! 
Aug 02 13:01:43.183 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:43.183 INFO kablam!  --> src/lib.rs:2:1
Aug 02 13:01:43.183 INFO kablam!   |
Aug 02 13:01:43.183 INFO kablam! 2 | #![feature(macro_vis_matcher)]
Aug 02 13:01:43.183 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:43.183 INFO kablam! 
Aug 02 13:01:43.184 INFO kablam! error: aborting due to 2 previous errors
Aug 02 13:01:43.187 INFO kablam! 
Aug 02 13:01:43.187 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:01:43.194 INFO kablam! error: Could not compile `chalk-macros`.
Aug 02 13:01:43.194 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 13:01:43.411 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:43.411 INFO kablam!  --> src/lib.rs:1:1
Aug 02 13:01:43.411 INFO kablam!   |
Aug 02 13:01:43.411 INFO kablam! 1 | #![feature(crate_visibility_modifier)]
Aug 02 13:01:43.411 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:43.411 INFO kablam! 
Aug 02 13:01:43.411 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 13:01:43.411 INFO kablam!  --> src/lib.rs:2:1
Aug 02 13:01:43.411 INFO kablam!   |
Aug 02 13:01:43.411 INFO kablam! 2 | #![feature(macro_vis_matcher)]
Aug 02 13:01:43.411 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 13:01:43.412 INFO kablam! 
Aug 02 13:01:43.412 INFO kablam! error: aborting due to 2 previous errors
Aug 02 13:01:43.412 INFO kablam! 
Aug 02 13:01:43.412 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 13:01:43.424 INFO kablam! error: Could not compile `chalk-macros`.
Aug 02 13:01:43.425 INFO kablam! 
Aug 02 13:01:43.425 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 13:01:43.427 INFO kablam! su: No module specific data is present
Aug 02 13:01:44.052 INFO running `"docker" "rm" "-f" "06163ebb028c36713e7befc936793203ff0e0aa8591c8a94eb7501e65a5b40d4"`
Aug 02 13:01:44.266 INFO blam! 06163ebb028c36713e7befc936793203ff0e0aa8591c8a94eb7501e65a5b40d4