src/test/ui/attributes/key-value-non-ascii.stderr

error: non-ASCII character in byte constant
  --> $DIR/key-value-non-ascii.rs:3:19
   |
LL | #[rustc_dummy = b"ffi.rs"]
   |                   ^
   |                   |
   |                   byte constant must be ASCII
   |                   help: use a \xHH escape for a non-ASCII byte: `\xFB03`

error: aborting due to previous error