Created temporary directory: /tmp/pip-ephem-wheel-cache-eonqpr_8
Created temporary directory: /tmp/pip-req-tracker-3vkv8xjv
Created requirements tracker '/tmp/pip-req-tracker-3vkv8xjv'
Created temporary directory: /tmp/pip-wheel-t9637uck
Collecting pypi-register==2019.3.20
  1 location(s) to search for versions of pypi-register:
  * https://pypi.org/simple/pypi-register/
  Getting page https://pypi.org/simple/pypi-register/
  Analyzing links from page https://pypi.org/simple/pypi-register/
    Found link https://files.pythonhosted.org/packages/30/d1/0f3d2775ebc47194fcf2649214b49810e67a06675f56d154656e830eb113/pypi-register-0.0.0.tar.gz#sha256=ce3108bfd393c7333c8b2100ba3b68c0cb42985c96d2eb3d0dbf0e9ce1426155 (from https://pypi.org/simple/pypi-register/), version: 0.0.0
    Found link https://files.pythonhosted.org/packages/06/db/11eaa59c92df244cccf5d8d078f7b8d74426a2b9585797a1751bf678c9bf/pypi-register-2019.3.20.tar.gz#sha256=5d4ce143f566a767905cf30b7b0e60faf86ff7c68a24973d2a6e633f65dd9302 (from https://pypi.org/simple/pypi-register/), version: 2019.3.20
    Found link https://files.pythonhosted.org/packages/b0/cb/bb7186cad24edacd277306ca84275e8a9aa445dc9e4590112ba5145edec8/pypi_register-2019.3.20-py2.py3-none-any.whl#sha256=e80cdfb98b51a03d27c062128395acabcf25ee3deb1cf77ff8bda3ba11e5af74 (from https://pypi.org/simple/pypi-register/), version: 2019.3.20
    Found link https://files.pythonhosted.org/packages/e5/65/1a6a51cee7718db5291148ffc60bc249456350cf48952d63d35e8fe72a5e/pypi-register-2019.3.22.tar.gz#sha256=104c07331f81fa28f327d1caaefdafa248aec322bc2ed5e468e7f56809f05805 (from https://pypi.org/simple/pypi-register/), version: 2019.3.22
    Found link https://files.pythonhosted.org/packages/17/81/7b8c92bdc58519d0f885bb4a9a22aa97c132229ac00fc8c49a35cb366259/pypi_register-2019.3.22-py2.py3-none-any.whl#sha256=56fb3da4b61496213599d24e0021db940217577cc17fb921d4450db95b8fe998 (from https://pypi.org/simple/pypi-register/), version: 2019.3.22
    Found link https://files.pythonhosted.org/packages/4c/00/3944381d56e7f9bfd36bb1d114ae375b80dc283e58f5975362db36f7d86d/pypi-register-2019.4.13.tar.gz#sha256=1e49a5893242564f340cdc290312fbfe3a559b873e57ee4b2255aa368fdd1578 (from https://pypi.org/simple/pypi-register/), version: 2019.4.13
  Using version 2019.3.20 (newest of versions: 2019.3.20)
  Created temporary directory: /tmp/pip-unpack-ffb1m44i
  Downloading https://files.pythonhosted.org/packages/b0/cb/bb7186cad24edacd277306ca84275e8a9aa445dc9e4590112ba5145edec8/pypi_register-2019.3.20-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/b0/cb/bb7186cad24edacd277306ca84275e8a9aa445dc9e4590112ba5145edec8/pypi_register-2019.3.20-py2.py3-none-any.whl#sha256=e80cdfb98b51a03d27c062128395acabcf25ee3deb1cf77ff8bda3ba11e5af74 (from https://pypi.org/simple/pypi-register/)
  Saved /tmp/tmpc4wpnzhd/pypi_register-2019.3.20-py2.py3-none-any.whl
  Added pypi-register==2019.3.20 from https://files.pythonhosted.org/packages/b0/cb/bb7186cad24edacd277306ca84275e8a9aa445dc9e4590112ba5145edec8/pypi_register-2019.3.20-py2.py3-none-any.whl#sha256=e80cdfb98b51a03d27c062128395acabcf25ee3deb1cf77ff8bda3ba11e5af74 to build tracker '/tmp/pip-req-tracker-3vkv8xjv'
  Removed pypi-register==2019.3.20 from https://files.pythonhosted.org/packages/b0/cb/bb7186cad24edacd277306ca84275e8a9aa445dc9e4590112ba5145edec8/pypi_register-2019.3.20-py2.py3-none-any.whl#sha256=e80cdfb98b51a03d27c062128395acabcf25ee3deb1cf77ff8bda3ba11e5af74 from build tracker '/tmp/pip-req-tracker-3vkv8xjv'
Skipping pypi-register, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-t9637uck/pypi-register
Removed build tracker '/tmp/pip-req-tracker-3vkv8xjv'