Collecting simplestream==0.1.0a1
  1 location(s) to search for versions of simplestream:
  * https://pypi.python.org/simple/simplestream/
  Getting page https://pypi.python.org/simple/simplestream/
  Analyzing links from page https://pypi.python.org/simple/simplestream/
    Found link https://pypi.python.org/packages/14/24/9f2c4554775e5a73c71f66cf1ff6ca4a97bd8a096ee8618f61436db13bd5/simplestream-0.1.0a1-py3-none-any.whl#md5=8c1fa59f5cf4fb0a041f3c46fb22d371 (from https://pypi.python.org/simple/simplestream/), version: 0.1.0a1
    Skipping link https://pypi.python.org/packages/45/c3/436e431ace0ee39ca87ef221c13fabbc010a07d390c2bf9c83583b82c45a/simplestream-0.1.0a1-py3.6.egg#md5=f77b04102a0df89854a8538e674f0b4d (from https://pypi.python.org/simple/simplestream/); unsupported archive format: .egg
    Found link https://pypi.python.org/packages/f5/a1/92ffec209056c29c29c834a00339d9263e8178154ef9c0eb8abf87cc3c70/simplestream-0.1.0a1.macosx-10.13-intel.tar.gz#md5=495858e7c4585457d78d91f00c181997 (from https://pypi.python.org/simple/simplestream/), version: 0.1.0a1.macosx-10.13-intel
  Using version 0.1.0a1 (newest of versions: 0.1.0a1)
  Downloading simplestream-0.1.0a1-py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/14/24/9f2c4554775e5a73c71f66cf1ff6ca4a97bd8a096ee8618f61436db13bd5/simplestream-0.1.0a1-py3-none-any.whl#md5=8c1fa59f5cf4fb0a041f3c46fb22d371 (from https://pypi.python.org/simple/simplestream/)
  Saved /tmp/tmpob8fa77l/simplestream-0.1.0a1-py3-none-any.whl
Skipping simplestream, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-z6pod3fz/simplestream