Created temporary directory: /tmp/pip-ephem-wheel-cache-goo6c12n
Created temporary directory: /tmp/pip-req-tracker-a_nembe1
Created requirements tracker '/tmp/pip-req-tracker-a_nembe1'
Created temporary directory: /tmp/pip-wheel-_ji3ogrz
Looking in indexes: https://pypi.python.org/simple
Collecting scikit-build==0.8.1
  1 location(s) to search for versions of scikit-build:
  * https://pypi.python.org/simple/scikit-build/
  Getting page https://pypi.python.org/simple/scikit-build/
  Analyzing links from page https://pypi.org/simple/scikit-build/
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    Found link https://files.pythonhosted.org/packages/f5/74/61081f4923db1b8882055ff41eec669422f1ea838c8c7221a9c7cccaeb5f/scikit-build-0.6.1.tar.gz#sha256=d6c8bfe9f5802d6b6ce54f611f06643e36309f352240641323c9cc02efc43d63 (from https://pypi.org/simple/scikit-build/), version: 0.6.1
    Found link https://files.pythonhosted.org/packages/65/01/16ffddb86161bd77501efd99c9ee1248c9e2c1793a79f1e96b29a37db63e/scikit_build-0.6.1-py2.py3-none-any.whl#sha256=4df24a997c1955ce9ae704f5f55f221b4ea783cfa01896837e59699e2cd0c5e4 (from https://pypi.org/simple/scikit-build/), version: 0.6.1
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  Using version 0.8.1 (newest of versions: 0.8.1)
  Created temporary directory: /tmp/pip-unpack-e1iwzynv
  Downloading https://files.pythonhosted.org/packages/c4/d4/f7184714a9af3966878a9296b1c7af73e1072d2a982c11863ffe1f7688f6/scikit_build-0.8.1-py2.py3-none-any.whl (191kB)
  Downloading from URL https://files.pythonhosted.org/packages/c4/d4/f7184714a9af3966878a9296b1c7af73e1072d2a982c11863ffe1f7688f6/scikit_build-0.8.1-py2.py3-none-any.whl#sha256=711c1a2f7b5906ef452d77d567e6875593d3defa8a285cf4316f9be416a1f6a1 (from https://pypi.org/simple/scikit-build/)
  Saved /tmp/tmproy4zqs3/scikit_build-0.8.1-py2.py3-none-any.whl
  Added scikit-build==0.8.1 from https://files.pythonhosted.org/packages/c4/d4/f7184714a9af3966878a9296b1c7af73e1072d2a982c11863ffe1f7688f6/scikit_build-0.8.1-py2.py3-none-any.whl#sha256=711c1a2f7b5906ef452d77d567e6875593d3defa8a285cf4316f9be416a1f6a1 to build tracker '/tmp/pip-req-tracker-a_nembe1'
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Skipping scikit-build, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-_ji3ogrz/scikit-build
Removed build tracker '/tmp/pip-req-tracker-a_nembe1'