Remove Option from the return type of Attribute::name()

src/librustdoc/html/render.rs

@@ -3319,7 +3319,7 @@ fn render_attributes(w: &mut fmt::Formatter, it: &clean::Item) -> fmt::Result {
     let mut attrs = String::new();
 
     for attr in &it.attrs.other_attrs {
-        let name = attr.name().unwrap();
+        let name = attr.name();
         if !ATTRIBUTE_WHITELIST.contains(&&*name.as_str()) {
             continue;
         }