error[E0605]: non-primitive cast: `i32` as `!`
  --> $DIR/coerce-to-bang-cast.rs:16:13
   |
LL |     let y = {return; 22} as !;
   |             ^^^^^^^^^^^^^^^^^
   |
   = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait

error[E0605]: non-primitive cast: `i32` as `!`
  --> $DIR/coerce-to-bang-cast.rs:21:13
   |
LL |     let y = 22 as !; //~ ERROR non-primitive cast
   |             ^^^^^^^
   |
   = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0605`.