Created temporary directory: /tmp/pip-ephem-wheel-cache-40i5tdv2
Created temporary directory: /tmp/pip-req-tracker-jj9mxfku
Created requirements tracker '/tmp/pip-req-tracker-jj9mxfku'
Created temporary directory: /tmp/pip-wheel-z1oi8gt4
Collecting poly-pack==0.16
  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
    Found link https://files.pythonhosted.org/packages/21/2d/c6e5e84985a75f6cedf214d14af149e404c032b0a0e207180f6d75b9c666/poly_pack-0.15-py3-none-any.whl#sha256=74acd948fb2564e727f34d7e54100bfdb499c0b767b50931ae5f74e11d18122a (from https://pypi.org/simple/poly-pack/), version: 0.15
    Found link https://files.pythonhosted.org/packages/c9/e4/4f1d0e02cb5b6e5118695dcd9e71541da089734001e5268acf81ef668abe/poly_pack-0.15.tar.gz#sha256=c709ab5d8ade3022df77e25099271419aa6309652845062bd39e65cfd2c5dadf (from https://pypi.org/simple/poly-pack/), version: 0.15
    Found link https://files.pythonhosted.org/packages/dc/db/b178cc2b25be10ab2ccb74d8a5667ca0f184bbe38cbffcf74d48632cfb0f/poly_pack-0.16-py3-none-any.whl#sha256=fc8f8267f0effd1cbdc53c023259cd02ed625a687f54153223762ac96a7f19e8 (from https://pypi.org/simple/poly-pack/), version: 0.16
    Found link https://files.pythonhosted.org/packages/0b/b7/6df45aa8293a917c45e56ebe20906b56a34af9128e545899d5b3ee2e3df6/poly_pack-0.16.tar.gz#sha256=d9eaf6effe25114d5f819ac4b99a6e44ecfed093b3e0b238601183126f0d829a (from https://pypi.org/simple/poly-pack/), version: 0.16
  Using version 0.16 (newest of versions: 0.16)
  Created temporary directory: /tmp/pip-unpack-82o4iito
  Downloading https://files.pythonhosted.org/packages/dc/db/b178cc2b25be10ab2ccb74d8a5667ca0f184bbe38cbffcf74d48632cfb0f/poly_pack-0.16-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/dc/db/b178cc2b25be10ab2ccb74d8a5667ca0f184bbe38cbffcf74d48632cfb0f/poly_pack-0.16-py3-none-any.whl#sha256=fc8f8267f0effd1cbdc53c023259cd02ed625a687f54153223762ac96a7f19e8 (from https://pypi.org/simple/poly-pack/)
  Saved /tmp/tmp858rmhtq/poly_pack-0.16-py3-none-any.whl
  Added poly-pack==0.16 from https://files.pythonhosted.org/packages/dc/db/b178cc2b25be10ab2ccb74d8a5667ca0f184bbe38cbffcf74d48632cfb0f/poly_pack-0.16-py3-none-any.whl#sha256=fc8f8267f0effd1cbdc53c023259cd02ed625a687f54153223762ac96a7f19e8 to build tracker '/tmp/pip-req-tracker-jj9mxfku'
  Removed poly-pack==0.16 from https://files.pythonhosted.org/packages/dc/db/b178cc2b25be10ab2ccb74d8a5667ca0f184bbe38cbffcf74d48632cfb0f/poly_pack-0.16-py3-none-any.whl#sha256=fc8f8267f0effd1cbdc53c023259cd02ed625a687f54153223762ac96a7f19e8 from build tracker '/tmp/pip-req-tracker-jj9mxfku'
Skipping poly-pack, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-z1oi8gt4/poly-pack
Removed build tracker '/tmp/pip-req-tracker-jj9mxfku'