[Workbench] WebsocketTest#test_live_log_charting is not reliable
From build 1384:
1) Error: WebsocketTest#test_live_log_charting: Capybara::ExpectationNotMet: expected to find css "#log_graph_div" but there were no matches. Also found "", which matched the selector but not all filters. test/integration/websockets_test.rb:178:in `block in <class:WebsocketTest>' test/test_helper.rb:267:in `run'