Created temporary directory: /tmp/pip-ephem-wheel-cache-8q_pv7k1
Created temporary directory: /tmp/pip-req-tracker-84bmh3_v
Created requirements tracker '/tmp/pip-req-tracker-84bmh3_v'
Created temporary directory: /tmp/pip-wheel-pxy83a22
Looking in indexes: https://pypi.python.org/simple
Collecting pyupgrade==1.6.1
  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 1.6.1 (newest of versions: 1.6.1)
  Created temporary directory: /tmp/pip-unpack-9nvazrke
  Downloading https://files.pythonhosted.org/packages/7e/17/a11487028e0bbf2b975aa2d2a120390fb7bbf00d9b530bf705e7237425bd/pyupgrade-1.6.1-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/7e/17/a11487028e0bbf2b975aa2d2a120390fb7bbf00d9b530bf705e7237425bd/pyupgrade-1.6.1-py2.py3-none-any.whl#sha256=2759ae4fa75dfd2457059ae00bb44545da3b9c673e96122b6c08d49371e2b3cc (from https://pypi.org/simple/pyupgrade/)
  Saved /tmp/tmps69rirtx/pyupgrade-1.6.1-py2.py3-none-any.whl
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  Removed pyupgrade==1.6.1 from https://files.pythonhosted.org/packages/7e/17/a11487028e0bbf2b975aa2d2a120390fb7bbf00d9b530bf705e7237425bd/pyupgrade-1.6.1-py2.py3-none-any.whl#sha256=2759ae4fa75dfd2457059ae00bb44545da3b9c673e96122b6c08d49371e2b3cc from build tracker '/tmp/pip-req-tracker-84bmh3_v'
Skipping pyupgrade, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-pxy83a22/pyupgrade
Removed build tracker '/tmp/pip-req-tracker-84bmh3_v'