rootdir: /opt/omegaup, inifile:
plugins: flaky-3.3.0
collected 9 items

frontend/tests/ui/test_contest.py::test_create_contest[chrome] conftest.py                614 ERROR    Failed to initialize
Traceback (most recent call last):
  File "/opt/omegaup/frontend/tests/ui/conftest.py", line 586, in driver
    browser = _get_browser(request, browser_name)
  File "/opt/omegaup/frontend/tests/ui/conftest.py", line 561, in _get_browser
    desired_capabilities=chrome_capabilities)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    desired_capabilities=desired_capabilities)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
  (unknown error: DevToolsActivePort file doesn't exist)
  (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
  (Driver info: chromedriver=2.43.600233 (523efee95e3d68b8719b3a1c83051aa63aa6b10d),platform=Linux 4.15.0-70-generic x86_64)

ERROR                                                                                       [ 11%]
frontend/tests/ui/test_contest.py::test_user_ranking_contest[chrome] ERROR                                                                                 [ 22%]
frontend/tests/ui/test_contest.py::test_user_ranking_contest_when_scoreboard_show_time_finished[c