error[E0605]: non-primitive cast: `()` as `u32` | |
--> $DIR/cast-from-nil.rs:2:21 | |
| | |
LL | fn main() { let u = (assert!(true) as u32); } | |
| ^^^^^^^^^^^^^^^^^^^^^^ | |
| | |
= note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0605`. |