src/test/ui/consts/transmute-size-mismatch-before-typeck.stderr

   1 error: any use of this value will cause an error
   2   --> $DIR/transmute-size-mismatch-before-typeck.rs:13:29
   3    |
   4 LL | const ZST: &[u8] = unsafe { std::mem::transmute(1usize) };
   5    | ----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^---
   6    |                             |
   7    |                             transmuting `usize` to `&[u8]` is not possible, because these types do not have the same size
   8    |
   9    = note: `#[deny(const_err)]` on by default
  10    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
  11    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
  12
  13 error: could not evaluate constant pattern
  14   --> $DIR/transmute-size-mismatch-before-typeck.rs:8:9
  15    |
  16 LL |         ZST => {}
  17    |         ^^^
  18
  19 error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  20   --> $DIR/transmute-size-mismatch-before-typeck.rs:13:29
  21    |
  22 LL | const ZST: &[u8] = unsafe { std::mem::transmute(1usize) };
  23    |                             ^^^^^^^^^^^^^^^^^^^
  24    |
  25    = note: source type: `usize` (word size)
  26    = note: target type: `&[u8]` (2 * word size)
  27
  28 error: could not evaluate constant pattern
  29   --> $DIR/transmute-size-mismatch-before-typeck.rs:8:9
  30    |
  31 LL |         ZST => {}
  32    |         ^^^
  33
  34 error: aborting due to 4 previous errors
  35
  36 For more information about this error, try `rustc --explain E0512`.