It looks like Dres is unable to test and sometimes even fails to report anything.
https://open.cdash.org/index.php?compare1=61&filtercount=1&field1=revision&project=ParaView&showfilters=0&limit=100&value1=f4b607dcef76c236d4cbb4a635a6e2220e55cab8&showfeed=0
I just looked and dres continues to run into the problem described here: Reducing wait time of testing request
I have reapplied the fix mentioned there, thought that seems to not be a permanent solution.