See <https://builds.apache.org/job/beam_Release_NightlySnapshot/513/display/redirect?page=changes>
- Jenkins build became unstable: beam_Release_Nightly... Apache Jenkins Server
- Jenkins build is still unstable: beam_Release_N... Apache Jenkins Server
- Re: Jenkins build is still unstable: beam_R... Kenneth Knowles
- Jenkins build is back to stable : beam_Rele... Apache Jenkins Server
