Permissions problems in 0.8.0rc2 migrate step
Symptom: while pushing over SSH
remote: not trusting file /var/opt/gitlab/git-data/repositories/group/project.hg/.hg/hgrc from untrusted user root, group root
remote: not trusting file /var/opt/gitlab/git-data/repositories/group/project.hg/.hg/hgrc from untrusted user root, group root
mitigation: chown -R git:root /var/opt/gitlab/git-data/repositories
will be fixed by a new step in 0.8.0rc3, that will be released today.
(actually this makes a permission bug in an earlier update step more visible)