tests/ui/repr/repr-transparent-issue-87496.stderr

   1 warning: `extern` block uses type `TransparentCustomZst`, which is not FFI-safe
   2   --> $DIR/repr-transparent-issue-87496.rs:8:18
   3    |
   4 LL |     fn good17(p: TransparentCustomZst);
   5    |                  ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
   6    |
   7    = note: this struct contains only zero-sized fields
   8 note: the type is defined here
   9   --> $DIR/repr-transparent-issue-87496.rs:6:1
  10    |
  11 LL | struct TransparentCustomZst(());
  12    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  13    = note: `#[warn(improper_ctypes)]` on by default
  14
  15 warning: 1 warning emitted
  16