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