rustfmt-nightly 1.4.21

diff --git a/src/ir/item.rs b/src/ir/item.rs
index 7f3afefb..90d15e96 100644
--- a/src/ir/item.rs
+++ b/src/ir/item.rs
@@ -148,7 +148,11 @@ impl<'a, 'b> Iterator for ItemAncestorsIter<'a, 'b>
 impl AsTemplateParam for ItemId {
     type Extra = ();
 
-    fn as_template_param(&self, ctx: &BindgenContext, _: &()) -> Option<ItemId> {
+    fn as_template_param(
+        &self,
+        ctx: &BindgenContext,
+        _: &(),
+    ) -> Option<ItemId> {
         ctx.resolve_item(*self).as_template_param(ctx, &())
     }
 }
@@ -156,7 +160,11 @@ impl AsTemplateParam for ItemId {
 impl AsTemplateParam for Item {
     type Extra = ();
 
-    fn as_template_param(&self, ctx: &BindgenContext, _: &()) -> Option<ItemId> {
+    fn as_template_param(
+        &self,
+        ctx: &BindgenContext,
+        _: &(),
+    ) -> Option<ItemId> {
         self.kind.as_template_param(ctx, self)
     }
 }
diff --git a/src/ir/traversal.rs b/src/ir/traversal.rs
index 762a3e2d..b9c9dd4e 100644
--- a/src/ir/traversal.rs
+++ b/src/ir/traversal.rs
@@ -9,6 +9,8 @@ use std::collections::{BTreeMap, VecDeque};
 ///
 ///   from --> to
 ///
+/// Random content to generate a diff.
+///
 /// The `from` is left implicit: it is the concrete `Trace` implementer which
 /// yielded this outgoing edge.
 #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -33,7 +35,9 @@ impl Into<ItemId> for Edge {
     }
 }
 
-/// The kind of edge reference. This is useful when we wish to only consider
+/// The kind of edge reference.
+///
+/// This is useful when we wish to only consider
 /// certain kinds of edges for a particular traversal or analysis.
 #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum EdgeKind {
diff --git a/tests/headers/anon_enum.hpp b/tests/headers/anon_enum.hpp
index 1961fe6c..34759df3 100644
--- a/tests/headers/anon_enum.hpp
+++ b/tests/headers/anon_enum.hpp
@@ -1,7 +1,7 @@
 struct Test {
   int foo;
   float bar;
-  enum { T_NONE };
+  enum { T_NONE, T_SOME };
 };
 
 typedef enum {