Enforce question mark not used in serde crate yet

dtolnay · dtolnay · commit 91ec1c290f73 · 2023-07-27T19:02:11.000-07:00
Question mark regresses compile time by 6.5–7.5%.
diff --git a/serde/src/lib.rs b/serde/src/lib.rs
@@ -149,6 +149,8 @@
         must_use_candidate,
     )
 )]
+// Restrictions
+#![cfg_attr(feature = "cargo-clippy", deny(question_mark_used))]
 // Rustc lints.
 #![deny(missing_docs, unused_imports)]
 

Original file line number	Diff line number	Diff line change
`@@ -149,6 +149,8 @@`
`149`	`149`	`must_use_candidate,`
`150`	`150`	`)`
`151`	`151`	`)]`
	`152`	`+// Restrictions`
	`153`	`+#![cfg_attr(feature = "cargo-clippy", deny(question_mark_used))]`
`152`	`154`	`// Rustc lints.`
`153`	`155`	`#![deny(missing_docs, unused_imports)]`
`154`	`156`