Created temporary directory: /tmp/pip-ephem-wheel-cache-0xo8mxsa
Created temporary directory: /tmp/pip-req-tracker-0hezbihu
Created requirements tracker '/tmp/pip-req-tracker-0hezbihu'
Created temporary directory: /tmp/pip-wheel-ofl7cgmz
Collecting poly-pack==0.13
  1 location(s) to search for versions of poly-pack:
  * https://pypi.org/simple/poly-pack/
  Getting page https://pypi.org/simple/poly-pack/
  Analyzing links from page https://pypi.org/simple/poly-pack/
    Found link https://files.pythonhosted.org/packages/47/68/1f04c85f6f58e39d98bdc9fbb6a210369ce8449cc0081cfc301b705c77f8/poly_pack-0.13-py3-none-any.whl#sha256=ff16af6e8b6bcbd78db62756d8199615eefae24e71aaaa86a2a87bd72fd33af8 (from https://pypi.org/simple/poly-pack/), version: 0.13
    Found link https://files.pythonhosted.org/packages/28/0e/8b65ab9956f0085eb449a4a391e1b3d8802a5a7e799ba7526aa9c8a855ac/poly_pack-0.13.tar.gz#sha256=c23d06c84416bae14ee1514fec3b8834f697269cf3be6f3d34cd2cbfe8e6dbba (from https://pypi.org/simple/poly-pack/), version: 0.13
  Using version 0.13 (newest of versions: 0.13)
  Created temporary directory: /tmp/pip-unpack-wkfr0nt5
  Downloading https://files.pythonhosted.org/packages/47/68/1f04c85f6f58e39d98bdc9fbb6a210369ce8449cc0081cfc301b705c77f8/poly_pack-0.13-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/47/68/1f04c85f6f58e39d98bdc9fbb6a210369ce8449cc0081cfc301b705c77f8/poly_pack-0.13-py3-none-any.whl#sha256=ff16af6e8b6bcbd78db62756d8199615eefae24e71aaaa86a2a87bd72fd33af8 (from https://pypi.org/simple/poly-pack/)
  Saved /tmp/tmpi1m_wfxv/poly_pack-0.13-py3-none-any.whl
  Added poly-pack==0.13 from https://files.pythonhosted.org/packages/47/68/1f04c85f6f58e39d98bdc9fbb6a210369ce8449cc0081cfc301b705c77f8/poly_pack-0.13-py3-none-any.whl#sha256=ff16af6e8b6bcbd78db62756d8199615eefae24e71aaaa86a2a87bd72fd33af8 to build tracker '/tmp/pip-req-tracker-0hezbihu'
  Removed poly-pack==0.13 from https://files.pythonhosted.org/packages/47/68/1f04c85f6f58e39d98bdc9fbb6a210369ce8449cc0081cfc301b705c77f8/poly_pack-0.13-py3-none-any.whl#sha256=ff16af6e8b6bcbd78db62756d8199615eefae24e71aaaa86a2a87bd72fd33af8 from build tracker '/tmp/pip-req-tracker-0hezbihu'
Skipping poly-pack, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-ofl7cgmz/poly-pack
Removed build tracker '/tmp/pip-req-tracker-0hezbihu'