if !srcEOF && srcCtnt.Err != nil {
			log.Fatal(srcCtnt.Err)
		}

		if !tgtEOF && tgtCtnt.Err != nil {
			log.Fatal(tgtCtnt.Err)
		}

		// If source doesn't have objects anymore, comparison becomes obvious
		if srcEOF {
			fmt.Printf("only in target: %s\n", tgtCtnt.Key)
			tgtCtnt, tgtOk = <-tgtCh
			continue
		}

		// The same for target
		if tgtEOF {
			fmt.Printf("only in source: %s\n", srcCtnt.Key)