Created temporary directory: /tmp/pip-ephem-wheel-cache-rn1zzwag
Created temporary directory: /tmp/pip-req-tracker-h5ggzp0t
Created requirements tracker '/tmp/pip-req-tracker-h5ggzp0t'
Created temporary directory: /tmp/pip-wheel-nckcwos7
Collecting rcsb.utils.chemref==0.11
  1 location(s) to search for versions of rcsb.utils.chemref:
  * https://pypi.org/simple/rcsb-utils-chemref/
  Getting page https://pypi.org/simple/rcsb-utils-chemref/
  Analyzing links from page https://pypi.org/simple/rcsb-utils-chemref/
    Found link https://files.pythonhosted.org/packages/53/8a/66f539da562ca4c3a22aa913820c6fb65e854e5826bee8722f0d21808d24/rcsb.utils.chemref-0.11-py2.py3-none-any.whl#sha256=e0d3862a7015b3d5d5ec109632d3279f698c339ff45c12d760ae940598ba639e (from https://pypi.org/simple/rcsb-utils-chemref/), version: 0.11
    Found link https://files.pythonhosted.org/packages/ad/2c/7b8cca87ce5f2f2f767eda200e6bd5339ded78c08ffc45d7f18ca32209fb/rcsb.utils.chemref-0.11.tar.gz#sha256=bc259c7011908db093cf9e45a579000e2add93f2296a0179a54e5fe4871ae7f7 (from https://pypi.org/simple/rcsb-utils-chemref/), version: 0.11
    Found link https://files.pythonhosted.org/packages/8d/69/60217f3e22005696bd9fc47e894a56aae9f327a471955cfc59acb0ac26b0/rcsb.utils.chemref-0.12-py2.py3-none-any.whl#sha256=f4ca3d7e1ce77953e72f4c1f15a5bed0d0cd218215baa0c88c43c36ebe021f4c (from https://pypi.org/simple/rcsb-utils-chemref/), version: 0.12
    Found link https://files.pythonhosted.org/packages/70/8f/471f2c8262c03d18d034c266c29cddbc8bb9cb7c0ece4ef8299e4da49a6d/rcsb.utils.chemref-0.12.tar.gz#sha256=5d352b1040a6a6c77033a96f0501f4a5ff7e2744c472d70f821cadf045718e1d (from https://pypi.org/simple/rcsb-utils-chemref/), version: 0.12
  Using version 0.11 (newest of versions: 0.11)
  Created temporary directory: /tmp/pip-unpack-zyichkgb
  Downloading https://files.pythonhosted.org/packages/53/8a/66f539da562ca4c3a22aa913820c6fb65e854e5826bee8722f0d21808d24/rcsb.utils.chemref-0.11-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/53/8a/66f539da562ca4c3a22aa913820c6fb65e854e5826bee8722f0d21808d24/rcsb.utils.chemref-0.11-py2.py3-none-any.whl#sha256=e0d3862a7015b3d5d5ec109632d3279f698c339ff45c12d760ae940598ba639e (from https://pypi.org/simple/rcsb-utils-chemref/)
  Saved /tmp/tmpz_y_h48g/rcsb.utils.chemref-0.11-py2.py3-none-any.whl
  Added rcsb.utils.chemref==0.11 from https://files.pythonhosted.org/packages/53/8a/66f539da562ca4c3a22aa913820c6fb65e854e5826bee8722f0d21808d24/rcsb.utils.chemref-0.11-py2.py3-none-any.whl#sha256=e0d3862a7015b3d5d5ec109632d3279f698c339ff45c12d760ae940598ba639e to build tracker '/tmp/pip-req-tracker-h5ggzp0t'
  Removed rcsb.utils.chemref==0.11 from https://files.pythonhosted.org/packages/53/8a/66f539da562ca4c3a22aa913820c6fb65e854e5826bee8722f0d21808d24/rcsb.utils.chemref-0.11-py2.py3-none-any.whl#sha256=e0d3862a7015b3d5d5ec109632d3279f698c339ff45c12d760ae940598ba639e from build tracker '/tmp/pip-req-tracker-h5ggzp0t'
Skipping rcsb.utils.chemref, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-nckcwos7/rcsb.utils.chemref
Removed build tracker '/tmp/pip-req-tracker-h5ggzp0t'