// Copyright 2017 Serde Developers // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #[macro_use] extern crate serde_derive; #[derive(Deserialize)] #[serde(field_identifier)] //~^^ ERROR: `field_identifier` can only be used on an enum struct S; fn main() {}