src/test/ui/feature-gate-on-unimplemented.stderr - third_party/rust - Git at Google

 error: the `#[rustc_on_unimplemented]` attribute is an experimental feature (see issue #29628)
   --> $DIR/feature-gate-on-unimplemented.rs:14:1
    |
 14 | #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}`"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: add #![feature(on_unimplemented)] to the crate attributes to enable

 error: aborting due to previous error
	error: the `#[rustc_on_unimplemented]` attribute is an experimental feature (see issue #29628)
	--> $DIR/feature-gate-on-unimplemented.rs:14:1
	\|
	14 \| #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}`"]
	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	\|
	= help: add #![feature(on_unimplemented)] to the crate attributes to enable

	error: aborting due to previous error