gi, ok := cache.iamGroupsMap[group]
	if !ok {
		return updatedAt, errNoSuchGroup
	}

	s := set.CreateStringSet(gi.Members...)
	d := set.CreateStringSet(members...)
	gi.Members = s.Difference(d).ToSlice()

	if !updateCacheOnly {
		err := store.saveGroupInfo(ctx, group, gi)
		if err != nil {
			return updatedAt, err
		}
	}

			r, ok := dnsBuckets[bucket.Name]
			if !ok {
				bucketsToBeUpdated.Add(bucket.Name)
				continue
			}
			if !globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() {
				if globalDomainIPs.Difference(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() && !domainMissing {
					// No difference in terms of domainIPs and nothing
					// has changed so we don't change anything on the etcd.
					//

		gotBuckets.Add(b.Name)
		if !(b.Access.Read && b.Access.Write) {
			c.Fatalf("root user should have read and write access to bucket: %v", b.Name)
		}
	}
	shouldHaveBuckets := set.CreateStringSet(bucket2, bucket)
	if !gotBuckets.Equals(shouldHaveBuckets) {
		c.Fatalf("root user should have access to all buckets")
	}

	// This must fail.

	for _, parentUser := range parentUsers {
		currGroupsSet := updatedGroups[parentUser]
		currGroups := currGroupsSet.ToSlice()
		for _, cred := range parentUserToCredsMap[parentUser] {
			gSet := set.CreateStringSet(cred.Groups...)
			if gSet.Equals(currGroupsSet) {
				// No change to groups memberships for this
				// credential.
				continue
			}

			// Expired credentials don't need group membership updates.