[WIP] ci: add check for doc comment formatting #18542
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Which issue does this PR close?
Closes #16915.
Rationale for this change
This PR adds CI enforcement to ensure all code examples in documentation comments are properly formatted to maintain consistent code formatting, including examples in doc comments.
What changes are included in this PR?
This PR adds a new CI check in the
check-fmtjob that:cargo +nightly fmt --all -- --check --config format_code_in_doc_comments=trueNote:
format_code_in_doc_commentsis currently an unstable feature.Are these changes tested?
The command is tested locally with:
Are there any user-facing changes?
No user-facing changes.