this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Jeremy Bicha <email@example.com>
Date: Sat Aug 18 12:26:40 2018 -0400
Add basic debian/gbp.conf
https://salsa.debian.org/api/v4/projects/debian%2Fgrail.git%2F API request failed: 404 Not Found at /srv/qa.debian.org/data/vcswatch/vcswatch line 386.