Created temporary directory: /tmp/pip-ephem-wheel-cache-3yy9b_ut
Created temporary directory: /tmp/pip-req-tracker-gv2bv_z1
Created requirements tracker '/tmp/pip-req-tracker-gv2bv_z1'
Created temporary directory: /tmp/pip-wheel-14f38hec
Collecting grifter==0.2.11
  1 location(s) to search for versions of grifter:
  * https://pypi.org/simple/grifter/
  Getting page https://pypi.org/simple/grifter/
  Analyzing links from page https://pypi.org/simple/grifter/
    Found link https://files.pythonhosted.org/packages/d4/ba/6c08ebf66a7846c9156852dfd29c4126524a6e75cdadc85bc568400fc02b/grifter-0.2.11-py3-none-any.whl#sha256=e4ee4cc61fc2513894345407cd51d4c25cb4770a47e1f1791e650b5d488cf66e (from https://pypi.org/simple/grifter/), version: 0.2.11
    Found link https://files.pythonhosted.org/packages/8d/b9/0eafd12c6b2b514de5bffc7414891b375b0a47e7b96b38bb98f3f5cc4e7a/grifter-0.2.11.tar.gz#sha256=42caa05681a2804b6f4aa8c2e4adef13d014c83df64d6baf5699d882698433ba (from https://pypi.org/simple/grifter/), version: 0.2.11
  Using version 0.2.11 (newest of versions: 0.2.11)
  Created temporary directory: /tmp/pip-unpack-x66q3i1j
  Downloading https://files.pythonhosted.org/packages/d4/ba/6c08ebf66a7846c9156852dfd29c4126524a6e75cdadc85bc568400fc02b/grifter-0.2.11-py3-none-any.whl (48kB)
  Downloading from URL https://files.pythonhosted.org/packages/d4/ba/6c08ebf66a7846c9156852dfd29c4126524a6e75cdadc85bc568400fc02b/grifter-0.2.11-py3-none-any.whl#sha256=e4ee4cc61fc2513894345407cd51d4c25cb4770a47e1f1791e650b5d488cf66e (from https://pypi.org/simple/grifter/)
  Saved /tmp/tmpkfpmcvgp/grifter-0.2.11-py3-none-any.whl
  Added grifter==0.2.11 from https://files.pythonhosted.org/packages/d4/ba/6c08ebf66a7846c9156852dfd29c4126524a6e75cdadc85bc568400fc02b/grifter-0.2.11-py3-none-any.whl#sha256=e4ee4cc61fc2513894345407cd51d4c25cb4770a47e1f1791e650b5d488cf66e to build tracker '/tmp/pip-req-tracker-gv2bv_z1'
  Removed grifter==0.2.11 from https://files.pythonhosted.org/packages/d4/ba/6c08ebf66a7846c9156852dfd29c4126524a6e75cdadc85bc568400fc02b/grifter-0.2.11-py3-none-any.whl#sha256=e4ee4cc61fc2513894345407cd51d4c25cb4770a47e1f1791e650b5d488cf66e from build tracker '/tmp/pip-req-tracker-gv2bv_z1'
Skipping grifter, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-14f38hec/grifter
Removed build tracker '/tmp/pip-req-tracker-gv2bv_z1'