Control: block -1 with 912338 The upstream replacement for createrepo is createrepo_c. There is already an ITP filed, set as blocking for this bug.
The reverse dependencies of createrepo are src:koji, src:mock, and src:open-build-service. All three packages appear to me to already prefer createrepo_c over createrepo when it is available. So once createrepo_c is in Debian and those packages have their dependencies updated, createrepo can be removed. -- mike