@@ -1356,11 +1356,11 @@
 		   ;; run-ids = #f means *all* runs
 		   (let* ((numseconds      (common:hms-string->seconds (configf:lookup test-conf "skip" "rundelay")))
 			  (running-tests   (rmt:get-tests-for-runs-mindata #f full-test-name '("RUNNING" "REMOTEHOSTSTART" "LAUNCHED") '() #f))
 			  (completed-tests (rmt:get-tests-for-runs-mindata #f full-test-name '("COMPLETED") '("PASS" "FAIL" "ABORT") #f))
 			  (last-run-times  (map db:mintest-get-event_time completed-tests))
-			  (time-since-last (- (current-seconds) (apply max last-run-times))))
+			  (time-since-last (- (current-seconds) (if (null? last-run-times) 0 (apply max last-run-times)))))
 		     (if (or (not (null? running-tests)) ;; have to skip if test is running
 			     (> numseconds time-since-last))
 			 (set! skip-test (conc "Skipping due to previous test run less than " (configf:lookup test-conf "skip" "rundelay") " ago"))))))
 		 
 		 (if skip-test
@@ -1592,15 +1592,16 @@
 				(let ((new-tests (proc-get-tests run-id)))
 				  (if (null? new-tests)
 				      (debug:print-info 1 "Run completed according to zero tests matching provided criteria.")
 				      (loop (car new-tests)(cdr new-tests)))))
 			       ((archive)
-				(if (not toplevel-with-children)
-				    (case (string->symbol (args:get-arg "-archive"))
-				      ((save save-remove keep-html)
-				       (debug:print-info 0 "Estimating disk space usage for " test-fulln)
-				       (debug:print-info 0 "   " (common:get-disk-space-used (conc run-dir "/"))))))
+				(if (and run-dir (not toplevel-with-children))
+				    (let ((ddir (conc run-dir "/")))
+				      (case (string->symbol (args:get-arg "-archive"))
+					((save save-remove keep-html)
+					 (if (file-exists? ddir)
+					     (debug:print-info 0 "Estimating disk space usage for " test-fulln ": " (common:get-disk-space-used ddir)))))))
 				(if (not (null? tal))
 				    (loop (car tal)(cdr tal))))
 			       )))
 		       )
 		     (if worker-thread (thread-join! worker-thread))))))