rustdoc: Tracking issue for `#[doc(cfg)]` and automatically documented `#[cfg]`s

<!-- homu-ignore:start --> *[View all comments](https://triagebot.infra.rust-lang.org/gh-comments/rust-lang/rust/issues/43781)* <!-- homu-ignore:end --> This is a tracking issue for [RFC 3631](https://github.com/rust-lang/rfcs/pull/3631). The feature gate for this `doc_cfg` (`doc_cfg_hide` and `doc_auto_cfg` were removed in favor this overarching one). Part of #1998. > [!NOTE] > > Tracking issues are used to record the overall progress of implementation. > They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions. > > A tracking issue is however *not* meant for large scale discussion, questions, or bug reports. > Instead, open a dedicated issue for the specific matter or post in the [#t-rustdoc](https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc) Zulip channel. > > Discussion comments will get marked as off-topic or deleted. > Repeated discussions on the tracking issue may lead to the tracking issue getting locked. ### Steps - [x] Experimental implementation - [x] Adjust documentation - [x] Write an RFC - [x] Update implementation to match RFC - [ ] Check performance impact on big crates - [ ] Stabilization PR ([see instructions on forge][stabilization-guide]): https://github.com/rust-lang/rust/pull/150055 ### Open issues * https://github.com/rust-lang/rust/issues/156391 * https://github.com/rust-lang/rust/issues/81893 ### Unresolved questions ### Resolved questions * Should we change the syntax of hiding/sho

Posted by kennytm on Aug 10, 2017, 2:43 AM

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• github (Sysadmin)

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