Created temporary directory: /tmp/pip-ephem-wheel-cache-ndbas06i
Created temporary directory: /tmp/pip-req-tracker-f1ggj_qk
Created requirements tracker '/tmp/pip-req-tracker-f1ggj_qk'
Created temporary directory: /tmp/pip-wheel-uh1y8mcd
Looking in indexes: https://pypi.python.org/simple
Collecting pyupgrade==1.5.1
  1 location(s) to search for versions of pyupgrade:
  * https://pypi.python.org/simple/pyupgrade/
  Getting page https://pypi.python.org/simple/pyupgrade/
  Analyzing links from page https://pypi.org/simple/pyupgrade/
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  Using version 1.5.1 (newest of versions: 1.5.1)
  Created temporary directory: /tmp/pip-unpack-iia4d3zd
  Downloading https://files.pythonhosted.org/packages/3a/e6/f5bee0226ed7ad926ee7e286fb6a9b3cdfe65d8f790e1ca89d9767f4cc38/pyupgrade-1.5.1-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/3a/e6/f5bee0226ed7ad926ee7e286fb6a9b3cdfe65d8f790e1ca89d9767f4cc38/pyupgrade-1.5.1-py2.py3-none-any.whl#sha256=da2d76d66c96963f90744b67fddce11bb35710bc52e0bac66dfeee8cdf6d69a6 (from https://pypi.org/simple/pyupgrade/)
  Saved /tmp/tmp3678_fzu/pyupgrade-1.5.1-py2.py3-none-any.whl
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  Removed pyupgrade==1.5.1 from https://files.pythonhosted.org/packages/3a/e6/f5bee0226ed7ad926ee7e286fb6a9b3cdfe65d8f790e1ca89d9767f4cc38/pyupgrade-1.5.1-py2.py3-none-any.whl#sha256=da2d76d66c96963f90744b67fddce11bb35710bc52e0bac66dfeee8cdf6d69a6 from build tracker '/tmp/pip-req-tracker-f1ggj_qk'
Skipping pyupgrade, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-uh1y8mcd/pyupgrade
Removed build tracker '/tmp/pip-req-tracker-f1ggj_qk'