error[E0606]: casting `f64` as `*const A` is invalid
  --> $DIR/unsupported-cast.rs:6:20
   |
LL |   println!("{:?}", 1.0 as *const A); // Can't cast float to foreign.
   |                    ^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0606`.