193c3773c2
Ignore future deprecations in #[deprecated] The future deprecation warnings should only apply to `#[rustc_deprecated]` as they take into account rustc's version. Fixes #57952. I've also slightly modified rustdoc's display of future deprecation notices to make it more consistent, so I'm assigning a rustdoc team member for review to make sure this is okay. r? @GuillaumeGomez
For more information about how librustdoc works, see the rustc guide.