Created temporary directory: /tmp/pip-ephem-wheel-cache-5sa5eohu
Created temporary directory: /tmp/pip-req-tracker-42jzik1v
Created requirements tracker '/tmp/pip-req-tracker-42jzik1v'
Created temporary directory: /tmp/pip-wheel-3l1w60pl
Collecting tflex==1.0.0rc0
  1 location(s) to search for versions of tflex:
  * https://pypi.org/simple/tflex/
  Getting page https://pypi.org/simple/tflex/
  Analyzing links from page https://pypi.org/simple/tflex/
    Found link https://files.pythonhosted.org/packages/5b/18/68f268ad56423538da215c96824b289c7bdac37d66c82bde5dc5b94eb574/tflex-1.0.0rc0-py2.py3-none-any.whl#sha256=b7efe289c8b7fbc7f07662ddddd6832d503ed0217dbdbfeb3a5778c289551147 (from https://pypi.org/simple/tflex/), version: 1.0.0rc0
    Found link https://files.pythonhosted.org/packages/b3/8e/831d9b586a2d4ecc128178e0cd18a3af87ce58a54df4e8617737adff77a5/tflex-1.0.0rc0.tar.gz#sha256=0413e8a3237a301787c04230eb4999e4ebb551a5f47878eacaf4ed7b8c2f5b19 (from https://pypi.org/simple/tflex/), version: 1.0.0rc0
  Using version 1.0.0rc0 (newest of versions: 1.0.0rc0)
  Created temporary directory: /tmp/pip-unpack-ag4hsisy
  Downloading https://files.pythonhosted.org/packages/5b/18/68f268ad56423538da215c96824b289c7bdac37d66c82bde5dc5b94eb574/tflex-1.0.0rc0-py2.py3-none-any.whl (46kB)
  Downloading from URL https://files.pythonhosted.org/packages/5b/18/68f268ad56423538da215c96824b289c7bdac37d66c82bde5dc5b94eb574/tflex-1.0.0rc0-py2.py3-none-any.whl#sha256=b7efe289c8b7fbc7f07662ddddd6832d503ed0217dbdbfeb3a5778c289551147 (from https://pypi.org/simple/tflex/)
  Saved /tmp/tmpdsq8p4zp/tflex-1.0.0rc0-py2.py3-none-any.whl
  Added tflex==1.0.0rc0 from https://files.pythonhosted.org/packages/5b/18/68f268ad56423538da215c96824b289c7bdac37d66c82bde5dc5b94eb574/tflex-1.0.0rc0-py2.py3-none-any.whl#sha256=b7efe289c8b7fbc7f07662ddddd6832d503ed0217dbdbfeb3a5778c289551147 to build tracker '/tmp/pip-req-tracker-42jzik1v'
  Removed tflex==1.0.0rc0 from https://files.pythonhosted.org/packages/5b/18/68f268ad56423538da215c96824b289c7bdac37d66c82bde5dc5b94eb574/tflex-1.0.0rc0-py2.py3-none-any.whl#sha256=b7efe289c8b7fbc7f07662ddddd6832d503ed0217dbdbfeb3a5778c289551147 from build tracker '/tmp/pip-req-tracker-42jzik1v'
Skipping tflex, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-3l1w60pl/tflex
Removed build tracker '/tmp/pip-req-tracker-42jzik1v'