---

yaml
---
r: 135380
b: refs/heads/snap-stage3
c: 58c428f
h: refs/heads/master
v: v3

Author: Keegan McAllister

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 74090504219e4e37c1a6d9fdd8600f44b51c7b04
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: dfcfd008fa392706099073098a46fe65061bf6c3
+refs/heads/snap-stage3: 58c428fbf2df35bba9efe4290d63fa9df8aa9c20
 refs/heads/try: 14378ea357c06c23607ca61ade44f60a7a64a1c7
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/src/doc/guide-macros.md

@@ -1,5 +1,14 @@
 % The Rust Macros Guide
 
+<div class="unstable-feature">
+<b>Warning:</b> There are currently various problems with invoking macros, how
+they interact with their environment, and how they are used outside of the
+location in which they are defined. Macro definitions are likely to change
+slightly in the future. For this reason, they are hidden behind the
+<code>macro_rules</code> <a href="reference.html#compiler-features">feature
+attribute</a>.
+</div>
+
 # Introduction
 
 Functions are the primary tool that programmers can use to build abstractions.

branches/snap-stage3/src/doc/rust.css

@@ -338,6 +338,11 @@ pre.rust { position: relative; }
     transform: scaleX(-1);
 }
 
+.unstable-feature {
+    border: 2px solid red;
+    padding: 5px;
+}
+
 @media (min-width: 1170px) {
     pre {
         font-size: 15px;