Branch indexing
<span class='greyed'><small>00:49:36</small> Connecting to <a href='https://api.github.com'>https://api.github.com</a> using docker-jenkins/****** (docker-jenkins GitHub credentials)
</span>ERROR: Pull request 1664 : Not mergeable at c48982dbb606f1562262105d5aeec0ec062b0d97+f40f9c240ab03d20ae16ba97ec97ecb2cad50558 (NOT_MERGEABLE)
Finished: FAILURE