Created temporary directory: /tmp/pip-ephem-wheel-cache-oxhnhq8l
Created temporary directory: /tmp/pip-req-tracker-6or8femv
Created requirements tracker '/tmp/pip-req-tracker-6or8femv'
Created temporary directory: /tmp/pip-wheel-yio0fpek
Collecting burl==1.0.0
  1 location(s) to search for versions of burl:
  * https://pypi.org/simple/burl/
  Getting page https://pypi.org/simple/burl/
  Analyzing links from page https://pypi.org/simple/burl/
    Found link https://files.pythonhosted.org/packages/af/af/20aedd400b98c8f5d1f7920548cf9bb442732c04db6e7915a9c4176c0298/burl-1.0.0-py3-none-any.whl#sha256=3c3540d316a7825f6fe4c8ba234720a1640d95258f9210c54aad57ba7aff12d9 (from https://pypi.org/simple/burl/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/ba/07/0dcf5eb8411330c72a01f90a4b49c2274f8d9adbd52fa9d1d1d51bdf3f44/burl-1.0.0.tar.gz#sha256=82f8fb051c9b6a95bb724e522effad86b14394f33135bef1ccd2841f2e992368 (from https://pypi.org/simple/burl/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Created temporary directory: /tmp/pip-unpack-o75hfem2
  Downloading https://files.pythonhosted.org/packages/af/af/20aedd400b98c8f5d1f7920548cf9bb442732c04db6e7915a9c4176c0298/burl-1.0.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/af/af/20aedd400b98c8f5d1f7920548cf9bb442732c04db6e7915a9c4176c0298/burl-1.0.0-py3-none-any.whl#sha256=3c3540d316a7825f6fe4c8ba234720a1640d95258f9210c54aad57ba7aff12d9 (from https://pypi.org/simple/burl/)
  Saved /tmp/tmpswpm8472/burl-1.0.0-py3-none-any.whl
  Added burl==1.0.0 from https://files.pythonhosted.org/packages/af/af/20aedd400b98c8f5d1f7920548cf9bb442732c04db6e7915a9c4176c0298/burl-1.0.0-py3-none-any.whl#sha256=3c3540d316a7825f6fe4c8ba234720a1640d95258f9210c54aad57ba7aff12d9 to build tracker '/tmp/pip-req-tracker-6or8femv'
  Removed burl==1.0.0 from https://files.pythonhosted.org/packages/af/af/20aedd400b98c8f5d1f7920548cf9bb442732c04db6e7915a9c4176c0298/burl-1.0.0-py3-none-any.whl#sha256=3c3540d316a7825f6fe4c8ba234720a1640d95258f9210c54aad57ba7aff12d9 from build tracker '/tmp/pip-req-tracker-6or8femv'
Skipping burl, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-yio0fpek/burl
Removed build tracker '/tmp/pip-req-tracker-6or8femv'