hello, can someone perhaps help me? I am following the steps on this page and run into an error where $phablet-dev-bootstrap phablet   stalls   https://developer.ubuntu.com/en/phone/devices/porting-new-device/
The error I see is: 

$ phablet-dev-bootstrap phablet
DEBUG:phablet-dev-bootstrap:Creating sync directory /home/ccc/phablet/phablet
INFO:phablet-dev-bootstrap:Changing to workdir /home/ccc/phablet/phablet
INFO:phablet-dev-bootstrap:Initializing repository

... A new repo command ( 1.23) is available.
... You should upgrade soon:

    cp /home/ccc/phablet/.repo/repo/repo /usr/bin/repo

error: RPC failed; HTTP 503 curl 22 The requested URL returned error: 503 Service Unavailable
fatal: The remote end hung up unexpectedly
^Caborted by user
Traceback (most recent call last):
  File "/usr/bin/phablet-dev-bootstrap", line 156, in <module>
    main(args)
  File "/usr/bin/phablet-dev-bootstrap", line 149, in main
    sync_repository(args.sources, args.repo_branch, args.jobs, args.reference)
  File "/usr/bin/phablet-dev-bootstrap", line 84, in sync_repository
    subprocess.check_call(init_cmd)
  File "/usr/lib/python2.7/subprocess.py", line 536, in check_call
    retcode = call(*popenargs, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 523, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 1392, in wait
    pid, sts = _eintr_retry_call(os.waitpid, self.pid, 0)
  File "/usr/lib/python2.7/subprocess.py", line 476, in _eintr_retry_call
    return func(*args)
KeyboardInterrupt