#[macro_use] extern crate serde_derive; /// Test that we do not lint for unused underscores in a `MacroAttribute` /// expansion #[deny(used_underscore_binding)] #[derive(Deserialize)] struct MacroAttributesTest { _foo: u32, } #[test] fn macro_attributes_test() { let _ = MacroAttributesTest { _foo: 0 }; } fn main() {}