C:\msys64\home\ryuta\packages\rustpython\rustpython>cargo run --features ssl --release -- --install-pip
    Finished release [optimized] target(s) in 0.69s
     Running `target\release\rustpython.exe --install-pip`
downloading get-pip.py...
Traceback (most recent call last):
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 1351, in do_open
    encode_chunked=req.has_header('Transfer-encoding'))
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 1026, in _send_output
    self.send(msg)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 964, in send
    self.connect()
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\http\client.py", line 1400, in connect
    server_hostname=server_hostname)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 507, in wrap_socket
    session=session
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 1043, in _create
    raise
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 1040, in _create
    self.do_handshake()
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 1311, in do_handshake
    self.settimeout(timeout)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
SSLError: (134, 'certificate verify failed (_ssl.c:1915)')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "frozen", line 3, in <module>
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 222, in urlopen
    return opener.open(url, data, timeout)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 525, in open
    response = self._open(req, data)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 543, in _open
    '_open', req)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 502, in _call_chain
    result = func(*args)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 1394, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 1357, in do_open
    raise
  File "C:\msys64\home\ryuta\packages\rustpython\rustpython\Lib\urllib\request.py", line 1353, in do_open
    raise URLError(err)
URLError: (134, 'certificate verify failed (_ssl.c:1915)')
error: process didn't exit successfully: `target\release\rustpython.exe --install-pip` (exit code: 1)