| error[E0404]: expected trait, found type alias `Foo` | |
| --> $DIR/issue-3907.rs:11:6 | |
| | | |
| LL | impl Foo for S { | |
| | ^^^ type aliases cannot be used as traits | |
| | | |
| help: you might have meant to use `#![feature(trait_alias)]` instead of a `type` alias | |
| | | |
| LL | trait Foo = dyn issue_3907::Foo; | |
| | | |
| help: consider importing this trait instead | |
| | | |
| LL | use issue_3907::Foo; | |
| | | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0404`. |