We log so much in stdout for Jenkins so it's hard to follow what happens, we should remove the log of metrics we send:
00:52:17 Will send: https://www.wikimedia.org/beacon/statsv?webpagetest.enwiki-mobile.anonymous.Facebook.us-east-1.Google_Chrome-emulateMobile.firstView.SpeedIndex=2571ms&webpagetest.enwiki-mobile.anonymous.Facebook.us-east-1.Google_Chrome-emulateMobile.firstView.render=2491ms&webpagetest.enwiki-mobile.anonymous.Facebook.us-east-1.Google_Chrome-emulateMobile.firstView.TTFB=674ms&webpagetest.enwiki-mobile.anonymous.Facebook.us-east- ...
It will make it easier to follow what happens in the log.