Created temporary directory: /tmp/pip-ephem-wheel-cache-cesfp9ty
Created temporary directory: /tmp/pip-req-tracker-32n6s2a_
Created requirements tracker '/tmp/pip-req-tracker-32n6s2a_'
Created temporary directory: /tmp/pip-wheel-o_kbx80k
Collecting aggregate-prefixes==0.6.1
  1 location(s) to search for versions of aggregate-prefixes:
  * https://pypi.org/simple/aggregate-prefixes/
  Getting page https://pypi.org/simple/aggregate-prefixes/
  Analyzing links from page https://pypi.org/simple/aggregate-prefixes/
    Skipping link https://files.pythonhosted.org/packages/38/02/89e02d24aa136bb6dea64dd32ec48877581ffb5a9e272c0504e84d6b29af/aggregate_prefixes-0.3-py2-none-any.whl#sha256=3927fbcc7cd926532c832c3fb1d6d2d106c45218c94f9a7252a748ba92ddd692 (from https://pypi.org/simple/aggregate-prefixes/); it is not compatible with this Python
    Found link https://files.pythonhosted.org/packages/24/f9/91eb405c5a2c1848e09e160a55c296a291c709ef0874feff2fae1b09a525/aggregate_prefixes-0.3.tar.gz#sha256=d9b0bd1c982909801a8468da6fc5ff14e1266962d190cb295a9de5fcdd96b8f2 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.3
    Found link https://files.pythonhosted.org/packages/46/23/71a0c2bf6ada9a6ec87057a4d8ea7a5775af40578dc31306b56571dd2db9/aggregate_prefixes-0.4.tar.gz#sha256=fc92dcb3d009c12de09c738d57299636165684c1787247aebaba41d561016f34 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.4
    Skipping link https://files.pythonhosted.org/packages/9c/c0/f35ffd86c8010915f78f260299fd123eb9e8586cdeceb48da933b3d01d84/aggregate_prefixes-0.5-py2.7.egg#sha256=dd366e41a32c6a6b0678fbdc149e66ffc2e23377ccace6c034f6c3bbe1b3cc6b (from https://pypi.org/simple/aggregate-prefixes/); unsupported archive format: .egg
    Found link https://files.pythonhosted.org/packages/a9/18/f21e57f2b333015b2f646c692117440d2218c2be89745a36d44bbba10171/aggregate_prefixes-0.5.tar.gz#sha256=1750633747bf2b2def8310e904cd4991bf1f592b2490d8b3b95675538fa30412 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.5
    Found link https://files.pythonhosted.org/packages/c3/5a/b5a59f5b74349e52cba2d0244037314aa4307863d34049ed1a06e0202754/aggregate_prefixes-0.6.0.tar.gz#sha256=72283e939c7c970095c376f755a2125b052ad300005d8cf934a3dd5197b18ea0 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.6.0
    Skipping link https://files.pythonhosted.org/packages/76/66/160cd27e9ef840e040b4bdaf381441823ae6af5f64b24678af0735813f87/aggregate_prefixes-0.6.1-py2-none-any.whl#sha256=e828e3167427dde8693091628eeda0eecbdc3e41787664dc960f014280a1541e (from https://pypi.org/simple/aggregate-prefixes/); it is not compatible with this Python
    Skipping link https://files.pythonhosted.org/packages/66/93/952c29b8a71b103a276df1033ad353c201d61014ad0750c9f35a30980122/aggregate_prefixes-0.6.1-py2.7.egg#sha256=ff43dc967c804410f5b36f78cd6e064e690d17837e41e145b8fe3498fd075d22 (from https://pypi.org/simple/aggregate-prefixes/); unsupported archive format: .egg
    Found link https://files.pythonhosted.org/packages/c6/bf/bf3dbadb288eabd4a7510130b894a23f22ba6204d31b44b20eedfb8359a1/aggregate_prefixes-0.6.1-py3-none-any.whl#sha256=b833089e67b8bbb1a901d1774833e0097f356f4def7a68cc362df3458b52ed21 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.6.1
    Skipping link https://files.pythonhosted.org/packages/0f/94/3cf3d4d94c9e7d75ca8fa7fc43a8410746c3062775b5d84ec88c03f312d6/aggregate_prefixes-0.6.1-py3.7.egg#sha256=e4531d647a792e0eddb1ade672342ff4288328308e61e9d1355637ef550b15e4 (from https://pypi.org/simple/aggregate-prefixes/); unsupported archive format: .egg
    Found link https://files.pythonhosted.org/packages/ff/fa/b330657b10c26965c6a537cc45ba306e05afc9ed0916b0983765ff25027d/aggregate_prefixes-0.6.1.tar.gz#sha256=e51010bf52b875065a8c70d86f07ac7c1fc518c86dfbf3046612a7cc24e4d5e5 (from https://pypi.org/simple/aggregate-prefixes/), version: 0.6.1
  Using version 0.6.1 (newest of versions: 0.6.1)
  Created temporary directory: /tmp/pip-unpack-ljiu3gp8
  Downloading https://files.pythonhosted.org/packages/c6/bf/bf3dbadb288eabd4a7510130b894a23f22ba6204d31b44b20eedfb8359a1/aggregate_prefixes-0.6.1-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/c6/bf/bf3dbadb288eabd4a7510130b894a23f22ba6204d31b44b20eedfb8359a1/aggregate_prefixes-0.6.1-py3-none-any.whl#sha256=b833089e67b8bbb1a901d1774833e0097f356f4def7a68cc362df3458b52ed21 (from https://pypi.org/simple/aggregate-prefixes/)
  Saved /tmp/tmp96do2xiv/aggregate_prefixes-0.6.1-py3-none-any.whl
  Added aggregate-prefixes==0.6.1 from https://files.pythonhosted.org/packages/c6/bf/bf3dbadb288eabd4a7510130b894a23f22ba6204d31b44b20eedfb8359a1/aggregate_prefixes-0.6.1-py3-none-any.whl#sha256=b833089e67b8bbb1a901d1774833e0097f356f4def7a68cc362df3458b52ed21 to build tracker '/tmp/pip-req-tracker-32n6s2a_'
  Removed aggregate-prefixes==0.6.1 from https://files.pythonhosted.org/packages/c6/bf/bf3dbadb288eabd4a7510130b894a23f22ba6204d31b44b20eedfb8359a1/aggregate_prefixes-0.6.1-py3-none-any.whl#sha256=b833089e67b8bbb1a901d1774833e0097f356f4def7a68cc362df3458b52ed21 from build tracker '/tmp/pip-req-tracker-32n6s2a_'
Skipping aggregate-prefixes, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-o_kbx80k/aggregate-prefixes
Removed build tracker '/tmp/pip-req-tracker-32n6s2a_'