add issue template for rustdoc

This also expands the scope of the "diagnostic
issue" template to include rustdoc lints,
meaning diagnostic issues will need triaging again.
I think this is preferable to the alternative of
cramming even more cases under a single issue template.

Author: lolbinarycat

.github/ISSUE_TEMPLATE/diagnostics.yaml

@@ -1,6 +1,6 @@
 name: Diagnostic issue
-description: Create a bug report or feature request for a change to `rustc`'s error output
-labels: ["A-diagnostics", "T-compiler"]
+description: Create a bug report or feature request for a change to `rustc`' or `rustdoc`'s error output or lints
+labels: ["A-diagnostics"]
 body:
   - type: markdown
     attributes:
@@ -23,8 +23,8 @@ body:
     id: output
     attributes:
       label: Current output
-      description: Please provide the `rustc` output you see
-      placeholder: rustc output
+      description: Please provide the console output you see
+      placeholder: rustc/rustdoc output
       render: Shell
     validations:
       required: true
@@ -75,4 +75,4 @@ body:
       label: Anything else?
       description: If you have more details you want to give us to reproduce this issue, please add it here
     validations:
-      required: false
+      required: false

.github/ISSUE_TEMPLATE/rustdoc.md

@@ -0,0 +1,54 @@
+---
+name: Problem with rustdoc
+about: Report an issue with how docs get generated.
+labels: C-bug, T-rustdoc
+---
+<!--
+Thank you for filing a rustdoc issue! Rustdoc is the tool that handles the generation of docs.  It is usually invoked via `cargo doc`, but can also be used directly.
+
+If you have an issue with the actual content of the docs, use the "Documentation problem" template instead.
+
+If you have an issue with a lint or error message, use the "Diagnostic issue" template instead.
+-->
+
+# Code
+<!-- problematic snippet and/or link to repo and/or full path of standard library function -->
+
+```rust
+<code>
+```
+
+# Reproduction Steps
+<!--
+* command(s) to run, if any
+* permalink to hosted documentation, if any
+* search query, if any
+-->
+
+# Expected Outcome
+<!--
+What did you want to happen?
+
+For GUI changes, feel free to provide a mockup image of what you want it to look like.
+-->
+
+# Actual Output
+<!--
+* rustdoc console output
+* browser screenshot of generated html
+* rustdoc json (prettify by running through `jq` or running thorugh an online formatter)
+-->
+```console
+<code>
+```
+
+
+# Version
+<!--
+Available via `rustdoc --version` or under the "Help" menu.
+
+If the issue involves opening the documentation in a browser, please also provide the name and version of the browser used.
+-->
+
+# Additional Details
+<!-- Anything else you think is relevant -->

triagebot.toml

@@ -524,7 +524,6 @@ new_pr = true
 new_issue = true
 exclude_labels = [
     "C-tracking-issue",
-    "A-diagnostics",
 ]
 
 [autolabel."WG-trait-system-refactor"]