1 error[E0605]: non-primitive cast: `Foo` as `isize`
2 --> $DIR/nonscalar-cast.rs:15:20
4 LL | println!("{}", Foo { x: 1 } as isize);
5 | ^^^^^^^^^^^^^^^^^^^^^ help: consider using the `From` trait instead: `isize::from(Foo { x: 1 })`
7 = note: an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0605`.