I decided to switch on nightlies for all packages on winbot plus

zope-tests will get also mails of failures.

master.cfg

@@ -1005,7 +1005,7 @@ def bsquare_configure(c,
         c['status'].append(
           MailNotifier(mode="failing",
                    fromaddr=FROMADDR,
-                   extraRecipients=["agroszer@gmail.com"],
+                   extraRecipients=["agroszer@gmail.com", "zope-tests@zope.org"],
                    sendToInterestedUsers=False,
                    builders=[bname],
                    messageFormatter=message_formatter)
@@ -1039,7 +1039,7 @@ setup_BB_dev_tests(slow_lock, hour=20, minute=50)
 bsquare_configure(c,
               'svn://svn.zope.org/repos/main/',
               pollinterval = 300,
-              nightlyhour=None,
+              nightlyhour=23,
               slow_lock = slow_lock,
               svnbin='c:\\svn\\svn.exe')