| error[E0403]: the name `M` is already used for a generic parameter in this item's generic parameters | |
| --> $DIR/self-referential.rs:1:30 | |
| | | |
| LL | trait Foo<const M: u8, const M: u8 = M> {} | |
| | - ^ already used | |
| | | | |
| | first use of `M` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0403`. |