---

yaml
---
r: 132449
b: refs/heads/dist-snap
c: 2b9c5d2
h: refs/heads/master
i:
  132447: 7f084fa
v: v3

Author: steveklabnik

[refs]

@@ -6,7 +6,7 @@ refs/heads/try: 457a3c991d79b971be07fce75f9d0c12848fb37c
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c
-refs/heads/dist-snap: 1a80dcbd56e9b7f81b7d3aa4c3809ed1859fdcf7
+refs/heads/dist-snap: 2b9c5d2f74de052598c62edb20049182112fe9fa
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0

branches/dist-snap/src/doc/guide.md

@@ -354,6 +354,18 @@ file, we would need to call `rustc` twice, and pass it a bunch of options to
 tell it to build everything together. With Cargo, as our project grows, we can
 just `cargo build` and it'll work the right way.
 
+You'll also notice that Cargo has created a new file: `Cargo.lock`.
+
+```{ignore,notrust}
+[root]
+name = "hello_world"
+version = "0.0.1"
+```
+
+This file is used by Cargo to keep track of dependencies in your application.
+Right now, we don't have any, so it's a bit sparse. You won't ever need
+to touch this file yourself, just let Cargo handle it.
+
 That's it! We've successfully built `hello_world` with Cargo. Even though our
 program is simple, it's using much of the real tooling that you'll use for the
 rest of your Rust career.