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Auto merge of #12040 - epage:doc, r=weihanglo

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docs(ref): Specify 'rust_version' in Index format

See rust-lang/crates.io#6267
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bors 2023-04-26 16:32:33 +00:00
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src/doc/src/reference/registry-index.md
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@ -199,6 +199,9 @@ explaining the format of the entry.
"features2": {
"serde": ["dep:serde", "chrono?/serde"]
}
// The minimal supported Rust version (optional)
// This must be a valid version requirement without an operator (e.g. no `=`)
"rust_version": "1.60"
}
```
@ -221,6 +224,9 @@ The JSON objects should not be modified after they are added except for the
> * The publish API includes several other fields, such as `description` and `readme`, which don't appear in the index.
> These are intended to make it easier for a registry to obtain the metadata about the crate to display on a website without needing to extract and parse the `.crate` file.
> This additional information is typically added to a database on the registry server.
> * `rust_version` is not included. If a registry chooses to support this
> field, they must read it from the `Cargo.toml` contained in the `.crate`
> file.
>
> For [`cargo metadata`], the differences are:
>