Per https://integration.wikimedia.org/ci/job/mwext-Validator-testextension-zend/3/console

ERROR:zuul.Repo:Unable to initialize repo for https://gerrit.wikimedia.org/r/p/mediawiki/extensions/DataValues
07:45:18 Traceback (most recent call last):
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/merger/merger.py", line 38, in init
07:45:18 self._ensure_cloned()
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/merger/merger.py", line 50, in _ensure_cloned
07:45:18 git.Repo.clone_from(self.remote_url, self.local_path)
07:45:18 File "/usr/lib/pymodules/python2.7/git/repo/base.py", line 739, in clone_from
07:45:18 return cls._clone(Git(os.getcwd()), url, to_path, GitCmdObjectDB, progress, **kwargs)
07:45:18 File "/usr/lib/pymodules/python2.7/git/repo/base.py", line 691, in _clone
07:45:18 finalize_process(proc)
07:45:18 File "/usr/lib/pymodules/python2.7/git/remote.py", line 64, in finalize_process
07:45:18 proc.wait()
07:45:18 File "/usr/lib/pymodules/python2.7/git/cmd.py", line 100, in wait
07:45:18 raise GitCommandError(self.args, status, self.proc.stderr.read())
07:45:18 GitCommandError: 'git clone -v https://gerrit.wikimedia.org/r/p/mediawiki/extensions/DataValues src/extensions/DataValues' returned exit status 128: fatal: remote error: Git repository not found
07:45:18
07:45:18 Traceback (most recent call last):
07:45:18 File "/usr/local/bin/zuul-cloner", line 10, in <module>
07:45:18 sys.exit(main())
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/cmd/cloner.py", line 156, in main
07:45:18 cloner.main()
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/cmd/cloner.py", line 151, in main
07:45:18 cloner.execute()
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/lib/cloner.py", line 66, in execute
07:45:18 self.prepareRepo(project, dest)
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/lib/cloner.py", line 127, in prepareRepo
07:45:18 repo = self.cloneUpstream(project, dest)
07:45:18 File "/usr/local/lib/python2.7/dist-packages/zuul/lib/cloner.py", line 95, in cloneUpstream
07:45:18 raise Exception("Error cloning %s to %s" % (git_upstream, dest))
07:45:18 Exception: Error cloning https://gerrit.wikimedia.org/r/p/mediawiki/extensions/DataValues to src/extensions/DataValues