Created temporary directory: /tmp/pip-ephem-wheel-cache-mmkj2pw2
Created temporary directory: /tmp/pip-req-tracker-ojgi6bnz
Created requirements tracker '/tmp/pip-req-tracker-ojgi6bnz'
Created temporary directory: /tmp/pip-wheel-4q1q85vn
Collecting poly-pack==0.18
  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
    Found link https://files.pythonhosted.org/packages/fb/10/05044fd436cccf0fb96734e3cc9cfd9e2cf9e6262d26d1821af6aafdaee1/poly_pack-0.17-py3-none-any.whl#sha256=ede40307652d005aae26e12330e8f2941718b24db5babff4014b3a96399f632c (from https://pypi.org/simple/poly-pack/), version: 0.17
    Found link https://files.pythonhosted.org/packages/aa/dc/22f2d11538a924c56682522b40387ecaa3108796fe1700ae3f702f3edd6c/poly_pack-0.17.tar.gz#sha256=6ebb9d9e33050804052e0442dd66bd9b72e3625640ee43dcee97f82e42f5da76 (from https://pypi.org/simple/poly-pack/), version: 0.17
    Found link https://files.pythonhosted.org/packages/d8/b9/6e12de324bae2e1950de972ed9d21868ce4b3c22e4e38a0ca5777922c189/poly_pack-0.18-py3-none-any.whl#sha256=637434aeb553bfc1d90748be620d9bc74463b8f6f5a77bcd6e23916913321fbc (from https://pypi.org/simple/poly-pack/), version: 0.18
    Found link https://files.pythonhosted.org/packages/7a/f4/007d08a85fe5ab026f352f73f3c861a3522d23ec5d7057c2a18d9428a9d2/poly_pack-0.18.tar.gz#sha256=c27bdaa92c105e2513c97f27c9c8bd202ad1bdf0f387ec4a34908749bf0c428c (from https://pypi.org/simple/poly-pack/), version: 0.18
    Found link https://files.pythonhosted.org/packages/2f/db/2c0d565b6792842251f56d5bdda4df0b71bd57c6b8d6150eef9b0ea83fe3/poly_pack-0.19-py3-none-any.whl#sha256=59020ce3efa4dca479796504a028d292161d4658491b5957d5fcc24d24a66e03 (from https://pypi.org/simple/poly-pack/), version: 0.19
    Found link https://files.pythonhosted.org/packages/6e/fb/a902c1a282c0035de8f4f522c592b0bfc0c8cfe74769d1f9c676852e8896/poly_pack-0.19.tar.gz#sha256=e771716b60ae00e519d3a4fb46c29f94c7a075b1cc32d727a85c4be9dd464373 (from https://pypi.org/simple/poly-pack/), version: 0.19
    Found link https://files.pythonhosted.org/packages/86/56/24db9d029a8939a11d76029052248726579efdaac4f01ee596127dae7ada/poly_pack-0.20-py3-none-any.whl#sha256=7c2e1d57d42505ef8ce6975f6a47e44d2a4e10fd8a7121360985c3a5f8965147 (from https://pypi.org/simple/poly-pack/), version: 0.20
    Found link https://files.pythonhosted.org/packages/cf/59/a94b6bfca7f748f977b4ce8a60e66a1d196ee14c0fd62945fda7447b3a80/poly_pack-0.20.tar.gz#sha256=7f76d3c29facc58c32e26e7d88a8d26f6464602eeedebb257f72de793755493c (from https://pypi.org/simple/poly-pack/), version: 0.20
  Using version 0.18 (newest of versions: 0.18)
  Created temporary directory: /tmp/pip-unpack-0dmxcspv
  Downloading https://files.pythonhosted.org/packages/d8/b9/6e12de324bae2e1950de972ed9d21868ce4b3c22e4e38a0ca5777922c189/poly_pack-0.18-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/d8/b9/6e12de324bae2e1950de972ed9d21868ce4b3c22e4e38a0ca5777922c189/poly_pack-0.18-py3-none-any.whl#sha256=637434aeb553bfc1d90748be620d9bc74463b8f6f5a77bcd6e23916913321fbc (from https://pypi.org/simple/poly-pack/)
  Saved /tmp/tmphfqmg89t/poly_pack-0.18-py3-none-any.whl
  Added poly-pack==0.18 from https://files.pythonhosted.org/packages/d8/b9/6e12de324bae2e1950de972ed9d21868ce4b3c22e4e38a0ca5777922c189/poly_pack-0.18-py3-none-any.whl#sha256=637434aeb553bfc1d90748be620d9bc74463b8f6f5a77bcd6e23916913321fbc to build tracker '/tmp/pip-req-tracker-ojgi6bnz'
  Removed poly-pack==0.18 from https://files.pythonhosted.org/packages/d8/b9/6e12de324bae2e1950de972ed9d21868ce4b3c22e4e38a0ca5777922c189/poly_pack-0.18-py3-none-any.whl#sha256=637434aeb553bfc1d90748be620d9bc74463b8f6f5a77bcd6e23916913321fbc from build tracker '/tmp/pip-req-tracker-ojgi6bnz'
Skipping poly-pack, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-4q1q85vn/poly-pack
Removed build tracker '/tmp/pip-req-tracker-ojgi6bnz'