{'description': {'en': 'Guillaume Castagnino’s personal overlay.'},
 'homepage': 'https://gentoo.xwing.info',
 'name': 'xwing',
 'owner': [{'email': 'casta@xwing.info',
            'name': 'Guillaume Castagnino',
            'type': 'person'}],
 'quality': 'experimental',
 'source': [{'type': 'rsync',
             'uri': 'rsync://gentoo.xwing.info/xwing-overlay'}],
 'status': 'unofficial'}
pkgcore 0.12.24

 * Adding new repository
$ pmaint --config /var/lib/repo-mirror-ci/data-sync/etc/portage sync xwing
*** syncing xwing
!!! failed syncing xwing: DNS resolution failed for 'gentoo.xwing.info': Name or service not known
 * Sync failed with 1