Megatest

			(runs:queue-next-reg trimmed-tal trimmed-reg reglen regfull)
			reruns)))
	      (list (car newtal)(append (cdr newtal) reg) '() reruns))))

     ((and (null? fails)
	   (null? prereq-fails)
	   (null? non-completed))
      (if  (runs:can-keep-running? hed 5)
      (if  (runs:can-keep-running? hed 20)
	  (begin
	    (runs:inc-cant-run-tests hed)
	    (debug:print-info 1 "no fails in prerequisites for " hed " but also none running, keeping " hed " for now. Try count: " (hash-table-ref/default *seen-cant-run-tests* hed 0))
	    ;; num-retries code was here
	    ;; we use this opportunity to move contents of reg to tal
	    (list (car newtal)(append (cdr newtal) reg) '() reruns)) ;; an issue with prereqs not yet met?
	  (begin

	  #f))
     
     ;; Register tests 
     ;;
     ((not (hash-table-ref/default test-registry (runs:make-full-test-name test-name item-path) #f))
      (debug:print-info 4 "Pre-registering test " test-name "/" item-path " to create placeholder" )
      ;; always do firm registration now in v1.60 and greater ;; (eq? *transport-type* 'fs) ;; no point in parallel registration if use fs
      (let register-loop ((numtries 15))
      (rmt:general-call 'register-test run-id run-id test-name item-path)
      (if (rmt:get-test-id run-id test-name item-path)
	  (hash-table-set! test-registry (runs:make-full-test-name test-name item-path) 'done))
	(rmt:general-call 'register-test run-id run-id test-name item-path)
	(thread-sleep! 0.5)
	(if (rmt:get-test-id run-id test-name item-path)
	    (hash-table-set! test-registry (runs:make-full-test-name test-name item-path) 'done)
	    (if (> numtries 0)
		(register-loop (- numtries 1))
		(debug:print 0 "ERROR: failed to register test " (runs:make-full-test-name test-name item-path)))))
      (if (not (eq? (hash-table-ref/default test-registry (runs:make-full-test-name test-name "") #f) 'done))
	  (begin
	    (rmt:general-call 'register-test run-id run-id test-name "")
	    (if (rmt:get-test-id run-id test-name "")
		(hash-table-set! test-registry (runs:make-full-test-name test-name "") 'done))))
      (runs:shrink-can-run-more-tests-count)   ;; DELAY TWEAKER (still needed?)
      (if (and (null? tal)(null? reg))