Created temporary directory: /tmp/pip-ephem-wheel-cache-gj9c2t9j
Created temporary directory: /tmp/pip-req-tracker-4b0aexqr
Created requirements tracker '/tmp/pip-req-tracker-4b0aexqr'
Created temporary directory: /tmp/pip-wheel-67wrqb14
Looking in indexes: https://pypi.python.org/simple
Collecting perfcounters==1.0.1
  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
    Found link https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl#sha256=a54b39cd10c2e7464a417fcbdfb48797a46b910ae1a2ced94979d0316eff62d3 (from https://pypi.org/simple/perfcounters/), version: 1.0.1
    Found link https://files.pythonhosted.org/packages/ed/b0/b0ddeb3c3dfdf479deb71a40d060f11e9c42294d5952b46dcd1f046c431b/perfcounters-1.0.1.tar.gz#sha256=80a854862a719d513b5db66cf487748c12afe09e739682c10482b9f4b8d7f7a6 (from https://pypi.org/simple/perfcounters/), version: 1.0.1
  Using version 1.0.1 (newest of versions: 1.0.1)
  Created temporary directory: /tmp/pip-unpack-xikq0p6d
  Downloading https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl#sha256=a54b39cd10c2e7464a417fcbdfb48797a46b910ae1a2ced94979d0316eff62d3 (from https://pypi.org/simple/perfcounters/)
  Saved /tmp/tmp9usgdrvv/perfcounters-1.0.1-py3-none-any.whl
  Added perfcounters==1.0.1 from https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl#sha256=a54b39cd10c2e7464a417fcbdfb48797a46b910ae1a2ced94979d0316eff62d3 to build tracker '/tmp/pip-req-tracker-4b0aexqr'
  Removed perfcounters==1.0.1 from https://files.pythonhosted.org/packages/82/02/1383e1d80e9681e451130687b6bc5cfa327903021ed12bbe04437df49ed1/perfcounters-1.0.1-py3-none-any.whl#sha256=a54b39cd10c2e7464a417fcbdfb48797a46b910ae1a2ced94979d0316eff62d3 from build tracker '/tmp/pip-req-tracker-4b0aexqr'
Skipping perfcounters, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-67wrqb14/perfcounters
Removed build tracker '/tmp/pip-req-tracker-4b0aexqr'