stub out trait aliases in librustdoc

diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs
index fe1dac36be1f9beb7267dee65fb4b6bbefe477a9..be78935cadfbb1897c12a3f4a54cbe5db364ca7a 100644 (file)
--- a/src/librustdoc/visit_ast.rs
+++ b/src/librustdoc/visit_ast.rs
@@ -512,6 +512,9 @@ pub fn visit_item(&mut self, item: &hir::Item,
                 };
                 om.traits.push(t);
             },
+            hir::ItemTraitAlias(..) => {
+                unimplemented!("trait objects are not yet implemented")
+            },
 
             hir::ItemImpl(unsafety,
                           polarity,