Got stuck at the last step of Confluence 6.0.0-Beta3 trial setup

ian.confluence.event.events.space.SpaceUpdateEvent[source=com.atlassian.confluence.spaces.DefaultSpaceManager@3b81a60a] took 5838 ms (warning threshold is 5000 ms)
 -- referer: http://localhost:8090/welcome.action | url: /rest/onboarding/1/space | traceId: cc2fb05b3e84e193 | userName: automation
2016-09-19 17:15:37,983 ERROR [http-nio-8090-exec-3] [confluence.plugins.synchrony.SynchronyContextProvider] getContextMap Could not retrieve Synchrony public key.
 -- referer: http://localhost:8090/welcome.action | url: /pages/createpage.action | traceId: ef4c5aa448021a38 | userName: automation | action: createpage
2016-09-19 17:15:41,672 ERROR [http-nio-8090-exec-10] [synchrony.api.v1.SynchronyTokenResource] generateToken Could not retrieve Synchrony public key.
 -- referer: http://localhost:8090/pages/resumedraft.action?draftId=65600&draftShareId=ecd29cbf-5299-4c1b-bdeb-9ad70622fc89 | url: /rest/synchrony/1.0/token/65600/generate | traceId: 6fbd4a3a026e027c | userName: automation