2021-07-09T22:14:43,405 Created temporary directory: /tmp/pip-ephem-wheel-cache-wq9lctmf
2021-07-09T22:14:43,408 Created temporary directory: /tmp/pip-req-tracker-lji2uv0a
2021-07-09T22:14:43,409 Initialized build tracking at /tmp/pip-req-tracker-lji2uv0a
2021-07-09T22:14:43,409 Created build tracker: /tmp/pip-req-tracker-lji2uv0a
2021-07-09T22:14:43,409 Entered build tracker: /tmp/pip-req-tracker-lji2uv0a
2021-07-09T22:14:43,410 Created temporary directory: /tmp/pip-wheel-4rqyhht8
2021-07-09T22:14:43,444 1 location(s) to search for versions of mailman-bundler:
2021-07-09T22:14:43,444 * https://pypi.org/simple/mailman-bundler/
2021-07-09T22:14:43,444 Fetching project page and analyzing links: https://pypi.org/simple/mailman-bundler/
2021-07-09T22:14:43,445 Getting page https://pypi.org/simple/mailman-bundler/
2021-07-09T22:14:43,446 Found index url https://pypi.org/simple
2021-07-09T22:14:43,533 Skipping link: not a file: https://pypi.org/simple/mailman-bundler/
2021-07-09T22:14:43,549 Given no hashes to check 0 links for project 'mailman-bundler': discarding no candidates
2021-07-09T22:14:43,550 ERROR: Could not find a version that satisfies the requirement mailman-bundler==3.0b2 (from versions: none)
2021-07-09T22:14:43,550 ERROR: No matching distribution found for mailman-bundler==3.0b2
2021-07-09T22:14:43,550 Exception information:
2021-07-09T22:14:43,550 Traceback (most recent call last):
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 341, in resolve
2021-07-09T22:14:43,550     name, crit = self._merge_into_criterion(r, parent=None)
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 173, in _merge_into_criterion
2021-07-09T22:14:43,550     raise RequirementsConflicted(criterion)
2021-07-09T22:14:43,550 pip._vendor.resolvelib.resolvers.RequirementsConflicted: Requirements conflict: SpecifierRequirement('mailman-bundler==3.0b2')
2021-07-09T22:14:43,550 
2021-07-09T22:14:43,550 During handling of the above exception, another exception occurred:
2021-07-09T22:14:43,550 
2021-07-09T22:14:43,550 Traceback (most recent call last):
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 127, in resolve
2021-07-09T22:14:43,550     result = self._result = resolver.resolve(
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 473, in resolve
2021-07-09T22:14:43,550     state = resolution.resolve(requirements, max_rounds=max_rounds)
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 343, in resolve
2021-07-09T22:14:43,550     raise ResolutionImpossible(e.criterion.information)
2021-07-09T22:14:43,550 pip._vendor.resolvelib.resolvers.ResolutionImpossible: [RequirementInformation(requirement=SpecifierRequirement('mailman-bundler==3.0b2'), parent=None)]
2021-07-09T22:14:43,550 
2021-07-09T22:14:43,550 The above exception was the direct cause of the following exception:
2021-07-09T22:14:43,550 
2021-07-09T22:14:43,550 Traceback (most recent call last):
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/base_command.py", line 180, in _main
2021-07-09T22:14:43,550     status = self.run(options, args)
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
2021-07-09T22:14:43,550     return func(self, options, args)
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/commands/wheel.py", line 142, in run
2021-07-09T22:14:43,550     requirement_set = resolver.resolve(
2021-07-09T22:14:43,550   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 136, in resolve
2021-07-09T22:14:43,550     raise error from e
2021-07-09T22:14:43,550 pip._internal.exceptions.DistributionNotFound: No matching distribution found for mailman-bundler==3.0b2
2021-07-09T22:14:43,554 Removed build tracker: '/tmp/pip-req-tracker-lji2uv0a'