Add missing feature gate in multiple_supertrait_upcastable doc

This commit is contained in:
Gary Guo
2023-07-31 12:28:53 +01:00
parent 5082281609
commit e617faabe7
@@ -10,6 +10,7 @@
/// ### Example
///
/// ```rust
/// #![feature(multiple_supertrait_upcastable)]
/// trait A {}
/// trait B {}
///