Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/koji/daemon.py", line 1494, in runTask
    response = (handler.run(),)
                ^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/tasks.py", line 335, in run
    return koji.util.call_with_argcheck(self.handler, self.params, self.opts)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...

Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/koji/daemon.py", line 1494, in runTask
    response = (handler.run(),)
                ^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/tasks.py", line 335, in run
    return koji.util.call_with_argcheck(self.handler, self.params, self.opts)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/util.py", line 271, in call_with_argcheck
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/sbin/kojid", line 1557, in handler
    broot.build(fn, arch)
  File "/usr/sbin/kojid", line 683, in build
    rv = self.mock(args)
         ^^^^^^^^^^^^^^^
  File "/usr/sbin/kojid", line 553, in mock
    incremental_upload(self.session, fname, fd, uploadpath, logger=self.logger)
  File "/usr/lib/python3.12/site-packages/koji/daemon.py", line 62, in incremental_upload
    fast_incremental_upload(session, fname, fd, path, retries, logger)
  File "/usr/lib/python3.12/site-packages/koji/daemon.py", line 102, in fast_incremental_upload
    result = session.rawUpload(contents, offset, path, fname, overwrite=True)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 2537, in __call__
    return self.__func(self.__name, args, opts)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 3094, in _renew_expired_session
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 3120, in _callMethod
    return self._sendCall(handler, headers, request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 3016, in _sendCall
    raise e
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 3012, in _sendCall
    return self._sendOneCall(handler, headers, request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/koji/__init__.py", line 3060, in _sendOneCall
    r.raise_for_status()
  File "/usr/lib/python3.12/site-packages/requests/models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 503 Server Error: Service Unavailable for url: https://openkoji.iscas.ac.cn/kojihub?filename=build.log&filepath=tasks%2F7666%2F1517666&fileverify=adler32&offset=925321&overwrite=1