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docs(unstable): explain -Z rustdoc-depinfo

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Weihang Lo 2025-03-27 12:15:15 -04:00
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@ -98,6 +98,7 @@ Each new feature described below should explain how to use it.
* [rustdoc-map](#rustdoc-map) --- Provides mappings for documentation to link to external sites like [docs.rs](https://docs.rs/).
* [scrape-examples](#scrape-examples) --- Shows examples within documentation.
* [output-format](#output-format-for-rustdoc) --- Allows documentation to also be emitted in the experimental [JSON format](https://doc.rust-lang.org/nightly/nightly-rustc/rustdoc_json_types/).
* [rustdoc-depinfo](#rustdoc-depinfo) --- Use dep-info files in rustdoc rebuild detection.
* `Cargo.toml` extensions
* [Profile `rustflags` option](#profile-rustflags-option) --- Passed directly to rustc.
* [codegen-backend](#codegen-backend) --- Select the codegen backend used by rustc.
@ -1901,6 +1902,14 @@ Requires `-Zunstable-options`.
See [`cargo package --message-format`](../commands/cargo-package.md#option-cargo-package---message-format)
for more information.
## rustdoc depinfo
* Tracking Issue: [#00000](https://github.com/rust-lang/cargo/issues/00000)
The `-Z rustdoc-depinfo` flag leverages rustdoc's dep-info files to determine
whether documentations are required to re-generate. This can be combined with
`-Z checksum-freshness` to detect checksum changes rather than file mtime.
# Stabilized and removed features
## Compile progress