small improvements

buildbot.py

@@ -252,6 +252,7 @@ class jobsManager:
                     self._new_buildjob(newjob)
         else:
             # This part does the job
+            self.idle = False
             job = self.__get_job()
             if not job:
                 logging.error('No job got')
@@ -316,6 +317,7 @@ class updateManager:
     def check_update(self, rebuild_package=None):
         updates = list()
         for pkg in jobsmgr.pkgconfigs:
+            try:
                 if rebuild_package and \
                     rebuild_package != pkg.dirname:
                     continue
@@ -354,6 +356,8 @@ class updateManager:
                         updates.append((pkg, ver, buildarchs))
                 else:
                     logger.warning(f'unknown package type: {pkg.type}')
+            except Exception:
+                print_exc_plus()
         self._save()
         return updates