Buidlbot Tutorial: Url For Runtests Under Waterfall View Doesn't Show?

Doing this tutorial, the URL for runtests in the Waterfall view does not appear. The worker is connected (confirmed by logs of both master and worker). Why doesn't runtests show un

Solution 1:

go to Menu Builds -> Builders, click runtests and then you can see a "force" button on the top right hand corner. Click that button (before that make sure your worker is attached) and then you can see runtests in the waterfall view. https://i.stack.imgur.com/s7OXr.png