Created temporary directory: /tmp/pip-ephem-wheel-cache-1ejzgm3z
Created temporary directory: /tmp/pip-req-tracker-wg5e0qpj
Created requirements tracker '/tmp/pip-req-tracker-wg5e0qpj'
Created temporary directory: /tmp/pip-wheel-nmvyp6j5
Looking in indexes: https://pypi.python.org/simple
Collecting perfcounters==1.0.0
  1 location(s) to search for versions of perfcounters:
  * https://pypi.python.org/simple/perfcounters/
  Getting page https://pypi.python.org/simple/perfcounters/
  Analyzing links from page https://pypi.org/simple/perfcounters/
    Found link https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl#sha256=58128dccd011a130dab84c21aa36ef03799027c663226acfa14f3c7f371ca533 (from https://pypi.org/simple/perfcounters/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/7b/6d/2a25ad5bb2968b2e49e2fd7d5300a162c1793a3347ec09d188a49e2fe799/perfcounters-1.0.0.tar.gz#sha256=5056b6aead051dcda27422db6e61b56007184cfa1fa3a0c97b94c170d520dce3 (from https://pypi.org/simple/perfcounters/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Created temporary directory: /tmp/pip-unpack-3cdmr56g
  Downloading https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl#sha256=58128dccd011a130dab84c21aa36ef03799027c663226acfa14f3c7f371ca533 (from https://pypi.org/simple/perfcounters/)
  Saved /tmp/tmppk7n7gyo/perfcounters-1.0.0-py3-none-any.whl
  Added perfcounters==1.0.0 from https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl#sha256=58128dccd011a130dab84c21aa36ef03799027c663226acfa14f3c7f371ca533 to build tracker '/tmp/pip-req-tracker-wg5e0qpj'
  Removed perfcounters==1.0.0 from https://files.pythonhosted.org/packages/2f/ef/8bc60d68ffb842a7212b2503c1677561e3ab0a6af10f4056006edeefda78/perfcounters-1.0.0-py3-none-any.whl#sha256=58128dccd011a130dab84c21aa36ef03799027c663226acfa14f3c7f371ca533 from build tracker '/tmp/pip-req-tracker-wg5e0qpj'
Skipping perfcounters, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-nmvyp6j5/perfcounters
Removed build tracker '/tmp/pip-req-tracker-wg5e0qpj'