This test is failing:
```
tests/test_edit_event_page.py F

=================================== FAILURES ===================================
______________________ TestEditEventPage.test_edit_event _______________________

self = <tests.test_edit_event_page.TestEditEventPage instance at 0x3403ef0>
mozwebqa = <pytest_mozwebqa.pytest_mozwebqa.TestSetup instance at 0x3403e60>

    @pytest.mark.credentials
    @pytest.mark.nondestructive
    def test_edit_event(self, mozwebqa):
        home_page = Home(mozwebqa)
        home_page.login()
        events_page = home_page.header.click_events_link()
        events_page.go_to_event_detail_page()
        event_detail_page = EventDetail(mozwebqa)
>       event_detail_page.click_edit_event_button()

tests/test_edit_event_page.py:27: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <pages.event_detail.EventDetail object at 0x3404a90>

    def click_edit_event_button(self):
>       self.selenium.find_element(*self._edit_event_button_locator).click()

pages/event_detail.py:19: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <selenium.webdriver.remote.webdriver.WebDriver object at 0x34a5a10>
by = 'css selector'
value = '.four.columns.align-right.hide-on-phones > a:nth-child(3)'
```
Fix for this fail in [this comment](https://github.com/mozilla/remo-tests/pull/84/files#r6654833)