skip some errors

tests/pytest/crash_gen/crash_gen_main.py

@@ -2043,6 +2043,7 @@ class TdSuperTable:
             for topic in current_topic_list:
                 topic_list.append(topic)
 
+            try:
                 consumer.subscribe(topic_list)
 
                 # consumer with random work life
@@ -2052,9 +2053,9 @@ class TdSuperTable:
                     consumer.commit(res)
                     if time.time() - time_start > random.randint(5, 50):
                         break
-            try:
                 consumer.unsubscribe()
-            except TmqError as e:
+                consumer.close()
+            except TmqError as err: # topic deleted by other threads
                 pass
             return