error[E0605]: non-primitive cast: `i32` as `&dyn* Debug`
  --> $DIR/unsize-into-ref-dyn-star.rs:7:13
   |
LL |     let i = 42 as &dyn* Debug;
   |             ^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object

error: aborting due to previous error

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