From snapshot1008:
(2020-03-24T10:15 00:00) Starting batch 0 Fatal error: Uncaught Error: Class 'Wikibase\Lib\WikibaseSettings' not found in /srv/mediawiki/php-1.35.0-wmf.24/extensions/Wikibase/repo/maintenance/DumpEntities.php:241 Stack trace: #0 /srv/mediawiki/php-1.35.0-wmf.24/maintenance/doMaintenance.php(77): Wikibase\DumpEntities->finalSetup() #1 /srv/mediawiki/php-1.35.0-wmf.24/includes/Setup.php(140): wfMaintenanceSetup() #2 /srv/mediawiki/php-1.35.0-wmf.24/maintenance/doMaintenance.php(83): require_once('/srv/mediawiki/...') #3 /srv/mediawiki/php-1.35.0-wmf.24/extensions/Wikibase/repo/maintenance/dumpRdf.php(204): require_once('/srv/mediawiki/...') #4 /srv/mediawiki/multiversion/MWScript.php(101): require_once('/srv/mediawiki/...') #5 {main} thrown in /srv/mediawiki/php-1.35.0-wmf.24/extensions/Wikibase/repo/maintenance/DumpEntities.php on line 241
This affects all RDF and JSON dumps (but not the XML dumps which are done through another interface).