Created temporary directory: /tmp/pip-ephem-wheel-cache-71p0t3s5
Created temporary directory: /tmp/pip-req-tracker-74i9amkx
Created requirements tracker '/tmp/pip-req-tracker-74i9amkx'
Created temporary directory: /tmp/pip-wheel-kiru4btj
Collecting trefoil==0.3.1
  1 location(s) to search for versions of trefoil:
  * https://pypi.org/simple/trefoil/
  Getting page https://pypi.org/simple/trefoil/
  Analyzing links from page https://pypi.org/simple/trefoil/
    Found link https://files.pythonhosted.org/packages/8f/f0/809ac7d3570238244dc7292be66cc497b3785c8454a6e666c1dbaba8b7ad/trefoil-0.3.0-py2.py3-none-any.whl#sha256=d1e0a37ce86bfcca9b70185d26922bd4920f83617d1b8716a15df01ae78b6dbc (from https://pypi.org/simple/trefoil/), version: 0.3.0
    Found link https://files.pythonhosted.org/packages/d1/a1/2d774244716cb6b5716712f91679260d77a444cfa0dfeecc3ccfb5166aa8/trefoil-0.3.0.tar.gz#sha256=12724644caf70557c45d89749b44ee30b4668d02213e0ef4249c0ac07ce1ddaa (from https://pypi.org/simple/trefoil/), version: 0.3.0
    Found link https://files.pythonhosted.org/packages/23/0f/27a01538889411ea2114b9603573a79ee88d78a8e261fa7c785b36ef3fa4/trefoil-0.3.1-py2.py3-none-any.whl#sha256=f0966dbf422cf374814aa811091d8f23c8e698b7565e72a227bd42fc0bed46a0 (from https://pypi.org/simple/trefoil/), version: 0.3.1
    Found link https://files.pythonhosted.org/packages/34/8e/750b3782440c13e930638b65dc0c9ae7cc002ed5db27c4c521bec66075bc/trefoil-0.3.1.tar.gz#sha256=483375fece52a5abdb119cc2cb09ddb4bc7e89ffd59d656fdf08f15edb8ec001 (from https://pypi.org/simple/trefoil/), version: 0.3.1
  Using version 0.3.1 (newest of versions: 0.3.1)
  Created temporary directory: /tmp/pip-unpack-qhhe2bq3
  Downloading https://files.pythonhosted.org/packages/23/0f/27a01538889411ea2114b9603573a79ee88d78a8e261fa7c785b36ef3fa4/trefoil-0.3.1-py2.py3-none-any.whl (74kB)
  Downloading from URL https://files.pythonhosted.org/packages/23/0f/27a01538889411ea2114b9603573a79ee88d78a8e261fa7c785b36ef3fa4/trefoil-0.3.1-py2.py3-none-any.whl#sha256=f0966dbf422cf374814aa811091d8f23c8e698b7565e72a227bd42fc0bed46a0 (from https://pypi.org/simple/trefoil/)
  Saved /tmp/tmpz_y9vy8u/trefoil-0.3.1-py2.py3-none-any.whl
  Added trefoil==0.3.1 from https://files.pythonhosted.org/packages/23/0f/27a01538889411ea2114b9603573a79ee88d78a8e261fa7c785b36ef3fa4/trefoil-0.3.1-py2.py3-none-any.whl#sha256=f0966dbf422cf374814aa811091d8f23c8e698b7565e72a227bd42fc0bed46a0 to build tracker '/tmp/pip-req-tracker-74i9amkx'
  Removed trefoil==0.3.1 from https://files.pythonhosted.org/packages/23/0f/27a01538889411ea2114b9603573a79ee88d78a8e261fa7c785b36ef3fa4/trefoil-0.3.1-py2.py3-none-any.whl#sha256=f0966dbf422cf374814aa811091d8f23c8e698b7565e72a227bd42fc0bed46a0 from build tracker '/tmp/pip-req-tracker-74i9amkx'
Skipping trefoil, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-kiru4btj/trefoil
Removed build tracker '/tmp/pip-req-tracker-74i9amkx'