error[E0512]: transmute called with types of different sizes
  --> $DIR/transmute-impl.rs:21:18
   |
LL |         unsafe { transmute(x) } //~ ERROR transmute called with types of different sizes
   |                  ^^^^^^^^^
   |
   = 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`.