Failure in qa/specs/features/ee/browser_ui/6_release/pipelines_for_merged_results_and_merge_trains_spec.rb:53

Occurred in nightly pipeline:https://gitlab.com/gitlab-org/quality/nightly/-/jobs/353272494

Error on first try:

1st Try error in ./qa/specs/features/ee/browser_ui/6_release/pipelines_for_merged_results_and_merge_trains_spec.rb:51:
6129 Expected the merged result pipeline to pass.

1st screenshot:

Does the 'start merge train' button need to be clicked?

Error on second try:

D, [2019-11-18T04:44:56.996914 #22] DEBUG -- : Git: pwd=[/tmp/d20191118-22-1fzed2l], command=[HOME="/tmp/qa-netrc-credentials/22" git push http://root@gitlab-ee-e81f132c.test/relative/gitlab-qa-sandbox-group/qa-test-2019-11-18-04-22-06-d282a8414e4609b5/pipelines-for-merged-results-and-merge-trains-fe15ee99bdf03178.git merged-results:merged-results 2>&1]
6190 D, [2019-11-18T04:44:57.314184 #22] DEBUG -- : Git: output=[To http://gitlab-ee-e81f132c.test/relative/gitlab-qa-sandbox-group/qa-test-2019-11-18-04-22-06-d282a8414e4609b5/pipelines-for-merged-results-and-merge-trains-fe15ee99bdf03178.git
6191  ! [rejected]        merged-results -> merged-results (non-fast-forward)
6192 error: failed to push some refs to 'http://root@gitlab-ee-e81f132c.test/relative/gitlab-qa-sandbox-group/qa-test-2019-11-18-04-22-06-d282a8414e4609b5/pipelines-for-merged-results-and-merge-trains-fe15ee99bdf03178.git'
6193 hint: Updates were rejected because the tip of your current branch is behind
6194 hint: its remote counterpart. Integrate the remote changes (e.g.
6195 hint: 'git pull ...') before pushing again.
6196 hint: See the 'Note about fast-forwards' in 'git push --help' for details.], exitstatus=[1]

Screenshot: