1 // SPDX-License-Identifier: Apache-2.0 OR MIT 2 3 use pin_project::pin_project; 4 5 #[pin_project] 6 struct S { 7 //~^ ERROR may not be used on structs with zero fields 8 #[cfg(any())] 9 #[pin] 10 f: u8, 11 } 12 main()13 fn main() {} 14