On ci.hibernate.org, storing the test entities apparently might take more than the 2 seconds we've set as global default.
http://ci.hibernate.org/job/hibernate-search-master/lastBuild/org.hibernate$hibernate-search-integrationtest-wildfly/testReport/org.hibernate.search.test.integration.wildfly.massindexing/MassIndexingTimeoutIT/configuredTimeoutIsAppliedDuringIdProduction/