| error[E0308]: mismatched types | |
| --> $DIR/while-type-error.rs:3:19 | |
| | | |
| LL | fn main() { while main { } } | |
| | ^^^^ expected bool, found fn item | |
| | | |
| = note: expected type `bool` | |
| found type `fn() {main}` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0308`. |