---

yaml
---
r: 223603
b: refs/heads/beta
c: 20f421c
h: refs/heads/master
i:
  223601: dc021a6
  223599: a079d0b
v: v3

Author: bors

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: 1491a8fa01f174a05e16c874fe717b99d103567d
+refs/heads/beta: 20f421cd522e35021049d6ec31f6b6ea3fc68c06
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: 938f5d7af401e2d8238522fed4a612943b6e77fd
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/src/doc/trpl/comments.md

@@ -38,6 +38,17 @@ fn add_one(x: i32) -> i32 {
 }
 ```
 
+There is another style of doc comment, `//!`, to comment containing items (e.g.
+crates, modules or functions), instead of the items following it. Commonly used
+inside crates root (lib.rs) or modules root (mod.rs):
+
+```
+//! # The Rust Standard Library
+//!
+//! The Rust Standard Library provides the essential runtime
+//! functionality for building portable Rust software.
+```
+
 When writing doc comments, providing some examples of usage is very, very
 helpful. You’ll notice we’ve used a new macro here: `assert_eq!`. This compares
 two values, and `panic!`s if they’re not equal to each other. It’s very helpful

branches/beta/src/libstd/collections/hash/state.rs

@@ -38,7 +38,7 @@ pub trait HashState {
 /// A structure which is a factory for instances of `Hasher` which implement the
 /// default trait.
 ///
-/// This struct has is 0-sized and does not need construction.
+/// This struct is 0-sized and does not need construction.
 pub struct DefaultState<H>(marker::PhantomData<H>);
 
 impl<H: Default + hash::Hasher> HashState for DefaultState<H> {