The integration test suite is "failing" according to the tag on the bottom of the readme. If we look at the build in question it shows no failures but it skipped most of the tests in the API test suite:
https://jenkins.dataverse.org/job/IQSS-dataverse-develop/307/testReport/edu.harvard.iq.dataverse.api/
We should determine what's preventing the test suite from running to completion, resulting in these failure messages.