Created temporary directory: /tmp/pip-ephem-wheel-cache-_szj48r7
Created temporary directory: /tmp/pip-req-tracker-1xq4ndje
Created requirements tracker '/tmp/pip-req-tracker-1xq4ndje'
Created temporary directory: /tmp/pip-wheel-qn3lybmn
Collecting reqtrace==0.0.0
  1 location(s) to search for versions of reqtrace:
  * https://pypi.org/simple/reqtrace/
  Getting page https://pypi.org/simple/reqtrace/
  Analyzing links from page https://pypi.org/simple/reqtrace/
    Found link https://files.pythonhosted.org/packages/66/8b/87e394c318d3a7c40b368fa964fbf1ef6cbe403b6a8017c8a58493e52063/reqtrace-0.0.0-py2.py3-none-any.whl#sha256=d34151c0a20ac3e409553c9fc1fd37770af479c390bc10e26a9ac7e9d74a2dd6 (from https://pypi.org/simple/reqtrace/), version: 0.0.0
    Found link https://files.pythonhosted.org/packages/7b/c7/4cad35e430a4d9dc5f021bcb6fd18e3f521936f24771057953d945666587/reqtrace-0.0.0.tar.gz#sha256=8538e0d92d721740af9893d126614f74fdc70ed8ba2eb9d3c6ef837a7777753a (from https://pypi.org/simple/reqtrace/), version: 0.0.0
  Using version 0.0.0 (newest of versions: 0.0.0)
  Created temporary directory: /tmp/pip-unpack-vfsypm0j
  Downloading https://files.pythonhosted.org/packages/66/8b/87e394c318d3a7c40b368fa964fbf1ef6cbe403b6a8017c8a58493e52063/reqtrace-0.0.0-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/66/8b/87e394c318d3a7c40b368fa964fbf1ef6cbe403b6a8017c8a58493e52063/reqtrace-0.0.0-py2.py3-none-any.whl#sha256=d34151c0a20ac3e409553c9fc1fd37770af479c390bc10e26a9ac7e9d74a2dd6 (from https://pypi.org/simple/reqtrace/)
  Saved /tmp/tmp3thz9h3j/reqtrace-0.0.0-py2.py3-none-any.whl
  Added reqtrace==0.0.0 from https://files.pythonhosted.org/packages/66/8b/87e394c318d3a7c40b368fa964fbf1ef6cbe403b6a8017c8a58493e52063/reqtrace-0.0.0-py2.py3-none-any.whl#sha256=d34151c0a20ac3e409553c9fc1fd37770af479c390bc10e26a9ac7e9d74a2dd6 to build tracker '/tmp/pip-req-tracker-1xq4ndje'
  Removed reqtrace==0.0.0 from https://files.pythonhosted.org/packages/66/8b/87e394c318d3a7c40b368fa964fbf1ef6cbe403b6a8017c8a58493e52063/reqtrace-0.0.0-py2.py3-none-any.whl#sha256=d34151c0a20ac3e409553c9fc1fd37770af479c390bc10e26a9ac7e9d74a2dd6 from build tracker '/tmp/pip-req-tracker-1xq4ndje'
Skipping reqtrace, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-qn3lybmn/reqtrace
Removed build tracker '/tmp/pip-req-tracker-1xq4ndje'