Megatest

			  (debug:print 2 "Removing directory with zero db references: " dir-to-remove)
			  (system (conc "rm -rf " dir-to-remove))
			  (hash-table-delete! dirs-to-remove dir-to-remove))
			(debug:print 2 "Skipping removal of " dir-to-remove " for now as it still has references in the database")))))
	    (sort (hash-table-keys dirs-to-remove) (lambda (a b)(> (string-length a)(string-length b)))))

	   ;; remove the run if zero tests remain
	   (let ((remtests (db-get-tests-for-run db (db:get-value-by-header run header "id") #f #f)))
	     (if (null? remtests) ;; no more tests remaining
		 (let* ((dparts  (string-split lasttpath "/"))
			(runpath (conc "/" (string-intersperse 
					    (take dparts (- (length dparts) 1))
					    "/"))))
		   (debug:print 1 "Removing run: " runkey " " (db:get-value-by-header run header "runname"))
		   (db:delete-run db run-id)