Suppress match_wildcard_for_single_variants clippy false positive

Author: dtolnay

serde_derive/src/lib.rs

@@ -43,6 +43,8 @@
     clippy::let_underscore_drop,
     clippy::map_err_ignore,
     clippy::match_same_arms,
+    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/6984
+    clippy::match_wildcard_for_single_variants,
     clippy::module_name_repetitions,
     clippy::must_use_candidate,
     clippy::option_if_let_else,

serde_derive_internals/lib.rs

@@ -22,6 +22,8 @@
     clippy::items_after_statements,
     clippy::let_underscore_drop,
     clippy::match_same_arms,
+    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/6984
+    clippy::match_wildcard_for_single_variants,
     clippy::missing_errors_doc,
     clippy::module_name_repetitions,
     clippy::must_use_candidate,