2020-04-17T15:48:31,883 Created temporary directory: /tmp/pip-ephem-wheel-cache-atmcde9o
2020-04-17T15:48:31,888 Created temporary directory: /tmp/pip-req-tracker-tl7usgmu
2020-04-17T15:48:31,888 Initialized build tracking at /tmp/pip-req-tracker-tl7usgmu
2020-04-17T15:48:31,889 Created build tracker: /tmp/pip-req-tracker-tl7usgmu
2020-04-17T15:48:31,889 Entered build tracker: /tmp/pip-req-tracker-tl7usgmu
2020-04-17T15:48:31,891 Created temporary directory: /tmp/pip-wheel-t6_svdjl
2020-04-17T15:48:31,896 1 location(s) to search for versions of r2k:
2020-04-17T15:48:31,896 * https://pypi.org/simple/r2k/
2020-04-17T15:48:31,896 Fetching project page and analyzing links: https://pypi.org/simple/r2k/
2020-04-17T15:48:31,897 Getting page https://pypi.org/simple/r2k/
2020-04-17T15:48:31,900 Found index url https://pypi.org/simple
2020-04-17T15:48:31,903 Getting credentials from keyring for https://pypi.org/simple
2020-04-17T15:48:31,903 Getting credentials from keyring for pypi.org
2020-04-17T15:48:32,106   Skipping link: No binaries permitted for r2k: https://files.pythonhosted.org/packages/20/a0/954bdb641a2dee1db0ea44f1f19e4c6f154c15091daebcf88d6067296904/r2k-0.1.0-py3-none-any.whl#sha256=21490f416c14ae7bd0d42e5923436e4db097c8a8d7030ce35a60eb8127cea401 (from https://pypi.org/simple/r2k/) (requires-python:>=3.8,<4.0)
2020-04-17T15:48:32,108   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/9d/3f/4e76693cd9f60b885b3db29ef6ec6f52d442d78fa7f1f0d85c37b062b507/r2k-0.1.0.tar.gz#sha256=468b256c713d8c5da530cc8587ef5fc0ab08f8bde948ff599000771adfca2430 (from https://pypi.org/simple/r2k/) (requires-python:>=3.8,<4.0)
2020-04-17T15:48:32,114 Given no hashes to check 0 links for project 'r2k': discarding no candidates
2020-04-17T15:48:32,115 ERROR: Could not find a version that satisfies the requirement r2k==0.1.0 (from versions: none)
2020-04-17T15:48:32,116 Cleaning up...
2020-04-17T15:48:32,121 Removed build tracker: '/tmp/pip-req-tracker-tl7usgmu'
2020-04-17T15:48:32,124 ERROR: No matching distribution found for r2k==0.1.0
2020-04-17T15:48:32,124 Exception information:
2020-04-17T15:48:32,124 Traceback (most recent call last):
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 186, in _main
2020-04-17T15:48:32,124     status = self.run(options, args)
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 161, in run
2020-04-17T15:48:32,124     resolver.resolve(requirement_set)
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
2020-04-17T15:48:32,124     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
2020-04-17T15:48:32,124     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 281, in _get_abstract_dist_for
2020-04-17T15:48:32,124     req.populate_link(self.finder, upgrade_allowed, require_hashes)
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 249, in populate_link
2020-04-17T15:48:32,124     self.link = finder.find_requirement(self, upgrade)
2020-04-17T15:48:32,124   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 927, in find_requirement
2020-04-17T15:48:32,124     'No matching distribution found for %s' % req
2020-04-17T15:48:32,124 pip._internal.exceptions.DistributionNotFound: No matching distribution found for r2k==0.1.0