2020-05-19T04:51:54,409 Created temporary directory: /tmp/pip-ephem-wheel-cache-x6n1_af6
2020-05-19T04:51:54,414 Created temporary directory: /tmp/pip-req-tracker-fqg2s2cy
2020-05-19T04:51:54,414 Initialized build tracking at /tmp/pip-req-tracker-fqg2s2cy
2020-05-19T04:51:54,415 Created build tracker: /tmp/pip-req-tracker-fqg2s2cy
2020-05-19T04:51:54,415 Entered build tracker: /tmp/pip-req-tracker-fqg2s2cy
2020-05-19T04:51:54,417 Created temporary directory: /tmp/pip-wheel-p1mx6j3s
2020-05-19T04:51:54,437 1 location(s) to search for versions of pycalf:
2020-05-19T04:51:54,437 * https://pypi.org/simple/pycalf/
2020-05-19T04:51:54,438 Fetching project page and analyzing links: https://pypi.org/simple/pycalf/
2020-05-19T04:51:54,439 Getting page https://pypi.org/simple/pycalf/
2020-05-19T04:51:54,441 Found index url https://pypi.org/simple
2020-05-19T04:51:54,644   Skipping link: No binaries permitted for pycalf: https://files.pythonhosted.org/packages/a6/da/a743d11a8f83a64454cce2790a29f5e195a011cbf3b1346792902aac7465/pycalf-0.1.0-py3-none-any.whl#sha256=765e6f1dca5cff81158e38aef8a8060c02b4f6a3ab9e8532a6550166e3bf67ee (from https://pypi.org/simple/pycalf/) (requires-python:>=3.8,<4.0)
2020-05-19T04:51:54,646   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/d1/07/f388843f2976da1a9dd3a51fbe115fe71dcfa5470fd81480ccee03c4b879/pycalf-0.1.0.tar.gz#sha256=2d4be1ab742a7934e981a6ec07b601b3e4ecc3ca858a31f7259a709cddccc477 (from https://pypi.org/simple/pycalf/) (requires-python:>=3.8,<4.0)
2020-05-19T04:51:54,652 Given no hashes to check 0 links for project 'pycalf': discarding no candidates
2020-05-19T04:51:54,653 ERROR: Could not find a version that satisfies the requirement pycalf==0.1.0 (from versions: none)
2020-05-19T04:51:54,654 ERROR: No matching distribution found for pycalf==0.1.0
2020-05-19T04:51:54,654 Exception information:
2020-05-19T04:51:54,654 Traceback (most recent call last):
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 188, in _main
2020-05-19T04:51:54,654     status = self.run(options, args)
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 185, in wrapper
2020-05-19T04:51:54,654     return func(self, options, args)
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 160, in run
2020-05-19T04:51:54,654     reqs, check_supported_wheels=True
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 179, in resolve
2020-05-19T04:51:54,654     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 362, in _resolve_one
2020-05-19T04:51:54,654     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 313, in _get_abstract_dist_for
2020-05-19T04:51:54,654     self._populate_link(req)
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 279, in _populate_link
2020-05-19T04:51:54,654     req.link = self.finder.find_requirement(req, upgrade)
2020-05-19T04:51:54,654   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 930, in find_requirement
2020-05-19T04:51:54,654     req)
2020-05-19T04:51:54,654 pip._internal.exceptions.DistributionNotFound: No matching distribution found for pycalf==0.1.0
2020-05-19T04:51:54,693 Removed build tracker: '/tmp/pip-req-tracker-fqg2s2cy'