Add missing feature gate in multiple_supertrait_upcastable doc

2023-07-31 12:28:53 +01:00 · 2023-07-31 12:28:53 +01:00 · e617faabe7
commit e617faabe7
parent 5082281609
1 changed files with 1 additions and 0 deletions
--- a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
+++ b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs
@ -10,6 +10,7 @@ declare_lint! {
    /// ### Example
    ///
    /// ```rust
+    /// #![feature(multiple_supertrait_upcastable)]
    /// trait A {}
    /// trait B {}
    ///