error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> $DIR/transmute-impl.rs:21:18
   |
LL |         unsafe { transmute(x) }
   |                  ^^^^^^^^^
   |
   = note: source type: `&T` (pointer to `T`)
   = note: target type: `&isize` (N bits)

error: aborting due to previous error

For more information about this error, try `rustc --explain E0512`.