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Rollup merge of #80222 - GreenRecycleBin:daniel/fix-rustc-std-workspace-core-documentation, r=jyn514

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Fix rustc-std-workspace-core documentation

r? ```@steveklabnik```
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Guillaume Gomez 2020-12-23 00:13:38 +01:00 committed by GitHub
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library/rustc-std-workspace-core/README.md
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@ -4,12 +4,12 @@ This crate is a shim and empty crate which simply depends on `libcore` and
reexports all of its contents. The crate is the crux of empowering the standard
library to depend on crates from crates.io
Crates on crates.io that the standard library depend on the
`rustc-std-workspace-core` crate from crates.io. On crates.io, however, this
crate is empty. We use `[patch]` to override it to this crate in this
repository. As a result, crates on crates.io will draw a dependency edge to
`libcore`, the version defined in this repository. That should draw all the
dependency edges to ensure Cargo builds crates successfully!
Crates on crates.io that the standard library depend on need to depend on the
`rustc-std-workspace-core` crate from crates.io, which is empty. We use
`[patch]` to override it to this crate in this repository. As a result, crates
on crates.io will draw a dependency edge to `libcore`, the version defined in
this repository. That should draw all the dependency edges to ensure Cargo
builds crates successfully!
Note that crates on crates.io need to depend on this crate with the name `core`
for everything to work correctly. To do that they can use: