Daily browser tests targeting beta are failing on simple wbeditentity calls for creating items, e.g. id = browser.call( () => WikibaseApi.createItem() );. Upon further inspection it seems that they are hitting edit rate limits on wikidata.beta.wmflabs.org.
Log with failing tests: https://integration.wikimedia.org/ci/job/selenium-daily-beta-Wikibase/357/console
"Selenium user" (used for browser tests exclusively) logging in under a non-whitelisted IP: https://logstash-beta.wmflabs.org/app/kibana#/doc/logstash-*/logstash-2019.08.13/mediawiki?id=AWyKznnNeTItmKeUUnT7&_g=()
Edit limit hit for the same IP at the same time: https://logstash-beta.wmflabs.org/app/kibana#/doc/logstash-*/logstash-2019.08.13/mediawiki?id=AWyKz6NPeTItmKeUUnkQ
Currently whitelisted IPs: https://github.com/wikimedia/operations-mediawiki-config/blob/master/wmf-config/InitialiseSettings-labs.php#L570-L577