2020-02-23T07:35:57,479 Created temporary directory: /tmp/pip-ephem-wheel-cache-ax60vpxl
2020-02-23T07:35:57,484 Created temporary directory: /tmp/pip-req-tracker-xfocbk8b
2020-02-23T07:35:57,485 Initialized build tracking at /tmp/pip-req-tracker-xfocbk8b
2020-02-23T07:35:57,485 Created build tracker: /tmp/pip-req-tracker-xfocbk8b
2020-02-23T07:35:57,486 Entered build tracker: /tmp/pip-req-tracker-xfocbk8b
2020-02-23T07:35:57,487 Created temporary directory: /tmp/pip-wheel-muuaclqf
2020-02-23T07:35:57,493 1 location(s) to search for versions of wagtail-srcset:
2020-02-23T07:35:57,493 * https://pypi.org/simple/wagtail-srcset/
2020-02-23T07:35:57,493 Fetching project page and analyzing links: https://pypi.org/simple/wagtail-srcset/
2020-02-23T07:35:57,494 Getting page https://pypi.org/simple/wagtail-srcset/
2020-02-23T07:35:57,497 Found index url https://pypi.org/simple
2020-02-23T07:35:57,500 Getting credentials from keyring for https://pypi.org/simple
2020-02-23T07:35:57,501 Getting credentials from keyring for pypi.org
2020-02-23T07:35:57,710   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/17/26/afa2bc8c007888ba70d6e36825745a4b87bd815a2f0b77d4a6173bf458e5/wagtail-srcset-0.1.0.tar.gz#sha256=e0c3bb9c706965bb31ff8a45bcf9aa67f4cc14b3cb4eadfdac4c10b2b1f4b3bb (from https://pypi.org/simple/wagtail-srcset/) (requires-python:>=3.8,<4.0)
2020-02-23T07:35:57,711   Skipping link: No binaries permitted for wagtail-srcset: https://files.pythonhosted.org/packages/6b/d3/85a3c704875116b31a28cceb939aac2c2d855ad22a3f24f257df1d389bdb/wagtail_srcset-0.1.0-py3-none-any.whl#sha256=6bb1f85074acd08a8f850ef6e9e6fc11877ddf0e1bbed0bf6dfedcf41e08215a (from https://pypi.org/simple/wagtail-srcset/) (requires-python:>=3.8,<4.0)
2020-02-23T07:35:57,718 Given no hashes to check 0 links for project 'wagtail-srcset': discarding no candidates
2020-02-23T07:35:57,718 ERROR: Could not find a version that satisfies the requirement wagtail-srcset==0.1.0 (from versions: none)
2020-02-23T07:35:57,719 Cleaning up...
2020-02-23T07:35:57,724 Removed build tracker: '/tmp/pip-req-tracker-xfocbk8b'
2020-02-23T07:35:57,727 ERROR: No matching distribution found for wagtail-srcset==0.1.0
2020-02-23T07:35:57,728 Exception information:
2020-02-23T07:35:57,728 Traceback (most recent call last):
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 186, in _main
2020-02-23T07:35:57,728     status = self.run(options, args)
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 161, in run
2020-02-23T07:35:57,728     resolver.resolve(requirement_set)
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
2020-02-23T07:35:57,728     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
2020-02-23T07:35:57,728     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 281, in _get_abstract_dist_for
2020-02-23T07:35:57,728     req.populate_link(self.finder, upgrade_allowed, require_hashes)
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 249, in populate_link
2020-02-23T07:35:57,728     self.link = finder.find_requirement(self, upgrade)
2020-02-23T07:35:57,728   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 927, in find_requirement
2020-02-23T07:35:57,728     'No matching distribution found for %s' % req
2020-02-23T07:35:57,728 pip._internal.exceptions.DistributionNotFound: No matching distribution found for wagtail-srcset==0.1.0