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-rw-r--r--library/std/src/primitive_docs.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs
index 688ab63bf13..06e2a0eb2de 100644
--- a/library/std/src/primitive_docs.rs
+++ b/library/std/src/primitive_docs.rs
@@ -439,6 +439,11 @@ mod prim_char {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_unit {}
 
+// Required to make auto trait impls render.
+// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+#[doc(hidden)]
+impl () {}
+
 #[doc(primitive = "pointer")]
 #[doc(alias = "ptr")]
 #[doc(alias = "*")]
@@ -949,6 +954,11 @@ mod prim_str {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_tuple {}
 
+// Required to make auto trait impls render.
+// See /src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+#[doc(hidden)]
+impl<T, U> (T, U) {}
+
 #[doc(primitive = "f32")]
 /// A 32-bit floating point type (specifically, the "binary32" type defined in IEEE 754-2008).
 ///