Prepare action for public rust support #4265

Job	Run time
Diagnostic export (macos-latest, nightly-latest)	1m 11s
Diagnostic export (macos-latest, linked)	1m 13s
Diagnostic export (windows-latest, linked)	4m 12s
Diagnostic export (ubuntu-latest, nightly-latest)	59s
Diagnostic export (windows-latest, nightly-latest)	3m 42s
Diagnostic export (ubuntu-latest, linked)	1m 6s
	12m 23s

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