// Test that `#[rustc_on_unimplemented]` is gated by `on_unimplemented` feature | |
// gate. | |
#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}`"] | |
//~^ ERROR the `#[rustc_on_unimplemented]` attribute is an experimental feature | |
trait Foo<Bar> | |
{} | |
fn main() {} |