branch-1.2 nightly failed because it couldn't find yetus:
walking through steps, we checked and thought we had an existing install:
[HBase_Nightly_branch-1.2-AEAO7LJNYKPIH3O4GB2IR4TEIHRS6EXOJCJPGWYXWO6BFPUEZT3Q] Running shell script
Ensure we have a copy of Apache Yetus.
Checking for Yetus 0.6.0 in '/home/jenkins/jenkins-slave/workspace/HBase_Nightly_branch-1.2-AEAO7LJNYKPIH3O4GB2IR4TEIHRS6EXOJCJPGWYXWO6BFPUEZT3Q/yetus-0.6.0'
Reusing cached download of Apache Yetus version 0.6.0.
So we stashed and then tried to use it.
Examining the workspace present before the stash shows the directory we look for was present, but the contents were garbage:
$ unzip -l yetus-0.6.0.zip
Length Date Time Name
--------- ---------- ----- ----
0 00-00-1980 04:08 yetus-0.6.0/lib/precommit/qbt.sh
0 1 file
we should probably check for an executable that will successfully give us a version or something like that.