From d101753cd8a010abef238e616ac2f5bd5cbbf756 Mon Sep 17 00:00:00 2001
From: Inokentiy Babushkin <twk@twki.de>
Date: Sun, 15 Apr 2018 14:56:14 +0200
Subject: [PATCH] Added a header comment to auto trait innards.

---
 src/librustc/traits/auto_trait.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/librustc/traits/auto_trait.rs b/src/librustc/traits/auto_trait.rs
index a4beb6fab123..4d52d7132dfd 100644
--- a/src/librustc/traits/auto_trait.rs
+++ b/src/librustc/traits/auto_trait.rs
@@ -8,6 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+//! Support code for rustdoc and external tools . You really don't
+//! want to be using this unless you need to.
+
 use super::*;
 
 use std::collections::hash_map::Entry;