Created temporary directory: /tmp/pip-ephem-wheel-cache-w96mgtv0
Created temporary directory: /tmp/pip-req-tracker-108w6v08
Created requirements tracker '/tmp/pip-req-tracker-108w6v08'
Created temporary directory: /tmp/pip-wheel-3tzs3wx2
Looking in indexes: https://pypi.python.org/simple
Collecting xbr==18.11.2
  1 location(s) to search for versions of xbr:
  * https://pypi.python.org/simple/xbr/
  Getting page https://pypi.python.org/simple/xbr/
  Analyzing links from page https://pypi.org/simple/xbr/
    Found link https://files.pythonhosted.org/packages/76/77/21c45870196d6a4ebbb8c4aa112c57bc8bbef4f8aaecf6875c1597a6d077/xbr-18.11.1-py2.py3-none-any.whl#sha256=5c87bd65c6f93d8e1b5650bb57079529a6df8aeabb443372b10539c01ba9b2bc (from https://pypi.org/simple/xbr/), version: 18.11.1
    Found link https://files.pythonhosted.org/packages/e1/a5/7de6e6fa4894a2fb095b0069db76e059c40d73621ff004d48a1c651edd8b/xbr-18.11.1.tar.gz#sha256=8b94bbb78d5d69424206e7e0fecc23b7c91eeba869f492a01879d37c938b1ba7 (from https://pypi.org/simple/xbr/), version: 18.11.1
    Found link https://files.pythonhosted.org/packages/7f/1a/aa661bb413a7ddf0f5c464f0d3a5056213bd61518c7f728a68123d570a19/xbr-18.11.2-py2.py3-none-any.whl#sha256=9bc3d820c8cf0a8f875154d1e8fb3f13dfe056cdb39a89397f2949d03c75ad5e (from https://pypi.org/simple/xbr/), version: 18.11.2
    Found link https://files.pythonhosted.org/packages/69/67/83e368ea1dcef0cdc7c14b8f3130a086cffb97776d2e1784213f217a4dc1/xbr-18.11.2.tar.gz#sha256=7d896489660f99b775019e8228ef9a2379cf11b660e7ad4fdbb413bc622815dd (from https://pypi.org/simple/xbr/), version: 18.11.2
  Using version 18.11.2 (newest of versions: 18.11.2)
  Created temporary directory: /tmp/pip-unpack-tzdn0apj
  Downloading https://files.pythonhosted.org/packages/7f/1a/aa661bb413a7ddf0f5c464f0d3a5056213bd61518c7f728a68123d570a19/xbr-18.11.2-py2.py3-none-any.whl (258kB)
  Downloading from URL https://files.pythonhosted.org/packages/7f/1a/aa661bb413a7ddf0f5c464f0d3a5056213bd61518c7f728a68123d570a19/xbr-18.11.2-py2.py3-none-any.whl#sha256=9bc3d820c8cf0a8f875154d1e8fb3f13dfe056cdb39a89397f2949d03c75ad5e (from https://pypi.org/simple/xbr/)
  Saved /tmp/tmp0_sdlprz/xbr-18.11.2-py2.py3-none-any.whl
  Added xbr==18.11.2 from https://files.pythonhosted.org/packages/7f/1a/aa661bb413a7ddf0f5c464f0d3a5056213bd61518c7f728a68123d570a19/xbr-18.11.2-py2.py3-none-any.whl#sha256=9bc3d820c8cf0a8f875154d1e8fb3f13dfe056cdb39a89397f2949d03c75ad5e to build tracker '/tmp/pip-req-tracker-108w6v08'
  Removed xbr==18.11.2 from https://files.pythonhosted.org/packages/7f/1a/aa661bb413a7ddf0f5c464f0d3a5056213bd61518c7f728a68123d570a19/xbr-18.11.2-py2.py3-none-any.whl#sha256=9bc3d820c8cf0a8f875154d1e8fb3f13dfe056cdb39a89397f2949d03c75ad5e from build tracker '/tmp/pip-req-tracker-108w6v08'
Skipping xbr, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-3tzs3wx2/xbr
Removed build tracker '/tmp/pip-req-tracker-108w6v08'