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mention the overview chapter

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mark 2020-07-20 19:42:01 -05:00 committed by Who? Me?!
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> top-level directory has separate directories for the compiler, build-system,
> std libs, etc, rather than one huge `src/` directory.
Now that we have [seen what the compiler does](./overview.md), let's take a
look at the structure of the contents of the rust-lang/rust repo.
## Workspace structure
The `rust-lang/rust` repository consists of a single large cargo workspace
@ -35,6 +38,10 @@ built in a special way because it can use unstable features.
## Compiler
> You may find it helpful to read [The Overview Chapter](./overview.md) first,
> which gives an overview of how the compiler works. The crates mentioned in
> this section implement the compiler.
The compiler crates all have names starting with `librustc_*`. These are a large
collection of interdependent crates. There is also the `rustc` crate which is
the actual binary. It doesn't actually do anything besides calling the compiler