Created temporary directory: /tmp/pip-ephem-wheel-cache-c6paoj4f
Created temporary directory: /tmp/pip-req-tracker-myzwy46o
Created requirements tracker '/tmp/pip-req-tracker-myzwy46o'
Created temporary directory: /tmp/pip-wheel-6ty7l2sc
Collecting contrib-extension==0.0.1.1908252311rc0
  1 location(s) to search for versions of contrib-extension:
  * https://pypi.org/simple/contrib-extension/
  Getting page https://pypi.org/simple/contrib-extension/
  Analyzing links from page https://pypi.org/simple/contrib-extension/
    Found link https://files.pythonhosted.org/packages/1c/77/409c81688c0dbabe7b1f8e804bbeb206f401abe57216ef0247de130b4680/contrib-extension-0.0.1.1908252311rc0.tar.gz#sha256=16ce554b83572b90e10a81c5ac92820c672a6d91b45730c273884fe4a8fec5a0 (from https://pypi.org/simple/contrib-extension/), version: 0.0.1.1908252311rc0
    Found link https://files.pythonhosted.org/packages/6e/eb/d6dc879855ae5f55a8627f199e0aa2ca0653fadceaadc8b09ad64263c75c/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl#sha256=b7a9c82fa15c1b82954627ae23cd6b60d3c6ff76bc353db325ca71fad05375ea (from https://pypi.org/simple/contrib-extension/), version: 0.0.1.1908252311rc0
  Using version 0.0.1.1908252311rc0 (newest of versions: 0.0.1.1908252311rc0)
  Created temporary directory: /tmp/pip-unpack-c962sqtt
  Downloading https://files.pythonhosted.org/packages/6e/eb/d6dc879855ae5f55a8627f199e0aa2ca0653fadceaadc8b09ad64263c75c/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/6e/eb/d6dc879855ae5f55a8627f199e0aa2ca0653fadceaadc8b09ad64263c75c/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl#sha256=b7a9c82fa15c1b82954627ae23cd6b60d3c6ff76bc353db325ca71fad05375ea (from https://pypi.org/simple/contrib-extension/)
  Saved /tmp/tmpzt_pjpdf/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl
  Added contrib-extension==0.0.1.1908252311rc0 from https://files.pythonhosted.org/packages/6e/eb/d6dc879855ae5f55a8627f199e0aa2ca0653fadceaadc8b09ad64263c75c/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl#sha256=b7a9c82fa15c1b82954627ae23cd6b60d3c6ff76bc353db325ca71fad05375ea to build tracker '/tmp/pip-req-tracker-myzwy46o'
  Removed contrib-extension==0.0.1.1908252311rc0 from https://files.pythonhosted.org/packages/6e/eb/d6dc879855ae5f55a8627f199e0aa2ca0653fadceaadc8b09ad64263c75c/contrib_extension-0.0.1.1908252311rc0-py3-none-any.whl#sha256=b7a9c82fa15c1b82954627ae23cd6b60d3c6ff76bc353db325ca71fad05375ea from build tracker '/tmp/pip-req-tracker-myzwy46o'
Skipping contrib-extension, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-6ty7l2sc/contrib-extension
Removed build tracker '/tmp/pip-req-tracker-myzwy46o'