LL | #[rustc_on_unimplemented = "test error `{Self}` with `{Bar}`"]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
- = note: see issue #29642 <https://github.com/rust-lang/rust/issues/29642> for more information
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
error: aborting due to previous error