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