| error[E0415]: identifier `a` is bound more than once in this parameter list | |
| --> $DIR/duplicate-parameter.rs:1:16 | |
| | | |
| LL | fn f(a: isize, a: isize) {} | |
| | ^ used as parameter more than once | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0415`. |