Created temporary directory: /tmp/pip-ephem-wheel-cache-eb9g057p
Created temporary directory: /tmp/pip-req-tracker-0xx_3m5i
Created requirements tracker '/tmp/pip-req-tracker-0xx_3m5i'
Created temporary directory: /tmp/pip-wheel-y4zf_tiy
Collecting hs-build-tools==2019.3
  1 location(s) to search for versions of hs-build-tools:
  * https://pypi.org/simple/hs-build-tools/
  Getting page https://pypi.org/simple/hs-build-tools/
  Analyzing links from page https://pypi.org/simple/hs-build-tools/
    Found link https://files.pythonhosted.org/packages/e8/8c/cd52bdef0bf1b27d6f6562599756c0a469d2af73d397e27c101030897e53/hs_build_tools-2019.3-py3-none-any.whl#sha256=753db5f6afe605675c1e0192e9adf03ba262ec27328b9bfc685260bddeb566f6 (from https://pypi.org/simple/hs-build-tools/), version: 2019.3
    Found link https://files.pythonhosted.org/packages/9a/b1/e60d0d5e8d161293347e3dc21c6909219c25cfded3b613e0fa10ca736dfb/hs_build_tools-2019.3.tar.gz#sha256=7829426e92490694006ff7341948192f1e558239560b9a3fa9bb3603c04433a9 (from https://pypi.org/simple/hs-build-tools/), version: 2019.3
  Using version 2019.3 (newest of versions: 2019.3)
  Created temporary directory: /tmp/pip-unpack-2o72de3z
  Downloading https://files.pythonhosted.org/packages/e8/8c/cd52bdef0bf1b27d6f6562599756c0a469d2af73d397e27c101030897e53/hs_build_tools-2019.3-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/e8/8c/cd52bdef0bf1b27d6f6562599756c0a469d2af73d397e27c101030897e53/hs_build_tools-2019.3-py3-none-any.whl#sha256=753db5f6afe605675c1e0192e9adf03ba262ec27328b9bfc685260bddeb566f6 (from https://pypi.org/simple/hs-build-tools/)
  Saved /tmp/tmpzfopsbrl/hs_build_tools-2019.3-py3-none-any.whl
  Added hs-build-tools==2019.3 from https://files.pythonhosted.org/packages/e8/8c/cd52bdef0bf1b27d6f6562599756c0a469d2af73d397e27c101030897e53/hs_build_tools-2019.3-py3-none-any.whl#sha256=753db5f6afe605675c1e0192e9adf03ba262ec27328b9bfc685260bddeb566f6 to build tracker '/tmp/pip-req-tracker-0xx_3m5i'
  Removed hs-build-tools==2019.3 from https://files.pythonhosted.org/packages/e8/8c/cd52bdef0bf1b27d6f6562599756c0a469d2af73d397e27c101030897e53/hs_build_tools-2019.3-py3-none-any.whl#sha256=753db5f6afe605675c1e0192e9adf03ba262ec27328b9bfc685260bddeb566f6 from build tracker '/tmp/pip-req-tracker-0xx_3m5i'
Skipping hs-build-tools, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-y4zf_tiy/hs-build-tools
Removed build tracker '/tmp/pip-req-tracker-0xx_3m5i'