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Apr 27, 2015
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trpl: Clarify lib.rs vs main.rs #24860

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7 changes: 7 additions & 0 deletions src/doc/trpl/hello-cargo.md
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Expand Up @@ -32,6 +32,13 @@ $ mkdir src
$ mv main.rs src/main.rs
```

Note that since we're creating an executable, we used `main.rs`. If we
want to make a library instead, we should use `lib.rs`.
Custom file locations for the entry point can be specified
with a [`[[lib]]` or `[[bin]]`][crates-custom] key in the TOML file described below.

[crates-custom]: http://doc.crates.io/manifest.html#configuring-a-target

Cargo expects your source files to live inside a `src` directory. That leaves
the top level for other things, like READMEs, license information, and anything
not related to your code. Cargo helps us keep our projects nice and tidy. A
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