src/test/ui/issues/issue-21174.rs

   1 trait Trait<'a> {
   2     type A;
   3     type B;
   4 }
   5
   6 fn foo<'a, T: Trait<'a>>(value: T::A) {
   7     let new: T::B = unsafe { std::mem::transmute(value) };
   8 //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types
   9 }
  10
  11 fn main() { }