详情见下文：

root@beb46cb4b84f:/# rabbitmqctl list_bindings
Listing bindings for vhost /...
source_name     source_kind     destination_name        destination_kind        routing_key     arguments
        exchange        topic_task_worker_manufacture   queue   topic_task_worker_manufacture   []
        exchange        topic_task_worker       queue   topic_task_worker       []
topic_task      exchange        topic_task_worker_manufacture   queue   manufacture.node        []
topic_task      exchange        topic_task_worker       queue   parse.step      []

我有两个绑定，输出为空source_name。现在，我如何删除它们？
我尝试了以下命令，但失败：

root@beb46cb4b84f:/# rabbitmqadmin delete binding source="" destination_type="queue" destination="topic_task_worker" properties_key="topic_task_worker" -u xxxx -p xxxx
Traceback (most recent call last):
  File "/usr/local/bin/rabbitmqadmin", line 1185, in <module>
    main()
  File "/usr/local/bin/rabbitmqadmin", line 524, in main
    method()
  File "/usr/local/bin/rabbitmqadmin", line 767, in invoke_delete
    (obj_type, uri, upload) = self.declare_delete_parse(DELETABLE)
  File "/usr/local/bin/rabbitmqadmin", line 787, in declare_delete_parse
    (uri, upload) = self.parse_args(self.args[1:], obj)
  File "/usr/local/bin/rabbitmqadmin", line 839, in parse_args
    uri = uri_template.format(**uri_args)
KeyError: 'source'