Created temporary directory: /tmp/pip-ephem-wheel-cache-wt7yfznr
Created temporary directory: /tmp/pip-req-tracker-gux0fb0_
Created requirements tracker '/tmp/pip-req-tracker-gux0fb0_'
Created temporary directory: /tmp/pip-wheel-bvzrs3lu
Collecting caisson==0.0.2
  1 location(s) to search for versions of caisson:
  * https://pypi.org/simple/caisson/
  Getting page https://pypi.org/simple/caisson/
  Analyzing links from page https://pypi.org/simple/caisson/
    Found link https://files.pythonhosted.org/packages/28/7a/0ddb97075a4c883c6d3dec2123e0cdca04e699dc00d4648f438ad1d0c199/caisson-0.0.1-py3-none-any.whl#sha256=6b8a7faaa1861cc13a4ed01de46513b51d622260da3019480558b13aa500c0a1 (from https://pypi.org/simple/caisson/), version: 0.0.1
    Skipping link https://files.pythonhosted.org/packages/10/06/fbd168172bd0081f31d5e7a6ca9faabb064a84272508076cfc4a902eb140/caisson-0.0.1-py3.7.egg#sha256=a0db3aa6e171a717cb85f689b77c8b2eb988b1d97b29226a41607da864184ad0 (from https://pypi.org/simple/caisson/); unsupported archive format: .egg
    Found link https://files.pythonhosted.org/packages/ab/bd/f7f4d1e24dc2ae494564ce9106ffe5dc4397c796ec4ccc2228a5004c4858/caisson-0.0.1.tar.gz#sha256=0c54ffee22291434c8d15b413ef3d8b3751a694c675300920efc03cdbfe4b8ee (from https://pypi.org/simple/caisson/), version: 0.0.1
    Found link https://files.pythonhosted.org/packages/aa/4a/501ac03e254ad949c016475af68f5e427a573b063903c836d8db48145d1d/caisson-0.0.2-py3-none-any.whl#sha256=42b3d9c06289a8b95ce2d9e4aaa68d3a3cb71286ac5a2a5203abbcf528803da1 (from https://pypi.org/simple/caisson/), version: 0.0.2
    Found link https://files.pythonhosted.org/packages/66/ac/90545cc6001f1002ad679662e08659b9368906a804fb9eb6031543852830/caisson-0.0.2.tar.gz#sha256=399f55de4840a0606ca21d7367b6e2c632ffacf2303b1e92847d3932c33654d5 (from https://pypi.org/simple/caisson/), version: 0.0.2
  Using version 0.0.2 (newest of versions: 0.0.2)
  Created temporary directory: /tmp/pip-unpack-x5o2t7pd
  Downloading https://files.pythonhosted.org/packages/aa/4a/501ac03e254ad949c016475af68f5e427a573b063903c836d8db48145d1d/caisson-0.0.2-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/aa/4a/501ac03e254ad949c016475af68f5e427a573b063903c836d8db48145d1d/caisson-0.0.2-py3-none-any.whl#sha256=42b3d9c06289a8b95ce2d9e4aaa68d3a3cb71286ac5a2a5203abbcf528803da1 (from https://pypi.org/simple/caisson/)
  Saved /tmp/tmpq7u_oqlr/caisson-0.0.2-py3-none-any.whl
  Added caisson==0.0.2 from https://files.pythonhosted.org/packages/aa/4a/501ac03e254ad949c016475af68f5e427a573b063903c836d8db48145d1d/caisson-0.0.2-py3-none-any.whl#sha256=42b3d9c06289a8b95ce2d9e4aaa68d3a3cb71286ac5a2a5203abbcf528803da1 to build tracker '/tmp/pip-req-tracker-gux0fb0_'
  Removed caisson==0.0.2 from https://files.pythonhosted.org/packages/aa/4a/501ac03e254ad949c016475af68f5e427a573b063903c836d8db48145d1d/caisson-0.0.2-py3-none-any.whl#sha256=42b3d9c06289a8b95ce2d9e4aaa68d3a3cb71286ac5a2a5203abbcf528803da1 from build tracker '/tmp/pip-req-tracker-gux0fb0_'
Skipping caisson, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-bvzrs3lu/caisson
Removed build tracker '/tmp/pip-req-tracker-gux0fb0_'