Closed
Description
There's currently a problem that when searching for the documentation of a crate in any search engine, chances are you find the documentation of a different project that publishes their full documentation along with all dependencies.
To avoid that, allow rustdoc to generate the following meta tag for all documentation of a library:
<meta name="robots" content="noindex">
This makes most crawlers not index the page. The feature could be implemented behind a flag.
rel="canonical" would be preferably, but the correct URL is hard to derive.