2021-03-30T00:59:31,663 Created temporary directory: /tmp/pip-ephem-wheel-cache-t8xxi9nu
2021-03-30T00:59:31,666 Created temporary directory: /tmp/pip-req-tracker-mtv4ajbd
2021-03-30T00:59:31,667 Initialized build tracking at /tmp/pip-req-tracker-mtv4ajbd
2021-03-30T00:59:31,667 Created build tracker: /tmp/pip-req-tracker-mtv4ajbd
2021-03-30T00:59:31,667 Entered build tracker: /tmp/pip-req-tracker-mtv4ajbd
2021-03-30T00:59:31,668 Created temporary directory: /tmp/pip-wheel-rofa9a8o
2021-03-30T00:59:31,698 1 location(s) to search for versions of backend-ai-webserver:
2021-03-30T00:59:31,698 * https://pypi.org/simple/backend-ai-webserver/
2021-03-30T00:59:31,698 Fetching project page and analyzing links: https://pypi.org/simple/backend-ai-webserver/
2021-03-30T00:59:31,699 Getting page https://pypi.org/simple/backend-ai-webserver/
2021-03-30T00:59:31,700 Found index url https://pypi.org/simple
2021-03-30T00:59:31,792   Found link https://files.pythonhosted.org/packages/d0/1b/f004aa2a5d68b5cff60a57031eb65b64127a3d78265d0ed43e9df634d00d/backend.ai-webserver-20.9.8.tar.gz#sha256=4d99f3b9be4dba36606cc1081b714b5aff1e8db655242d6c369a25f5a7530e02 (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.7), version: 20.9.8
2021-03-30T00:59:31,806   Found link https://files.pythonhosted.org/packages/4b/d1/c91e3e9a97bb92cfa1db30e5049828384a2e0a3ef31f5cfc58f32d71dc2e/backend.ai_webserver-20.9.8-py3-none-any.whl#sha256=e6e7b6c4e1ccd92b02d78cb5f1cbef45bef821adcad8181b5fa80d700713e7e6 (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.7), version: 20.9.8
2021-03-30T00:59:31,807   Found link https://files.pythonhosted.org/packages/9f/62/a299887bb3b80e59c2c159355fbd66f6626a8b3ca1991702614944b53c0e/backend.ai-webserver-20.9.9.tar.gz#sha256=498cb2ea83a8eba97adf4b3f7a3c0a46129bbeceb6a3e13813b1ec03b141416b (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.7), version: 20.9.9
2021-03-30T00:59:31,808   Found link https://files.pythonhosted.org/packages/c8/41/cef5b060ac213e40cb56d42526f4cd18553c6eeaff6fc36e421d1ed5ea94/backend.ai_webserver-20.9.9-py3-none-any.whl#sha256=f681d3febe862d1b261b945d816e9cfb71874e8be363a10bb5a8e5bfe2ad0487 (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.7), version: 20.9.9
2021-03-30T00:59:31,808   Link requires a different Python (3.7.3 not in: '>=3.9'): https://files.pythonhosted.org/packages/af/0d/0f1e034c3453a07420dd2d369f31c8e35f329d8a1b6c3620d52350de0d9e/backend.ai-webserver-21.3.0.post1.tar.gz#sha256=0a8af52bc37be4d7bf99d6ff269166b2e18beb29bcdffb7bd71e9c57d336b1dc (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.9)
2021-03-30T00:59:31,809   Link requires a different Python (3.7.3 not in: '>=3.9'): https://files.pythonhosted.org/packages/47/7c/754a307fcdbdd670812f5857eff09d514412ef003e0ce56d8a87e0b98c73/backend.ai_webserver-21.3.0.post1-py3-none-any.whl#sha256=ccf9bf83eb710c52c83f2f6ea9b4072b6f151a6fc35457e70e2b3c6f55e94399 (from https://pypi.org/simple/backend-ai-webserver/) (requires-python:>=3.9)
2021-03-30T00:59:31,810 Given no hashes to check 0 links for project 'backend-ai-webserver': discarding no candidates
2021-03-30T00:59:31,810 ERROR: Could not find a version that satisfies the requirement backend-ai-webserver==21.3.0.post1
2021-03-30T00:59:31,811 ERROR: No matching distribution found for backend-ai-webserver==21.3.0.post1
2021-03-30T00:59:31,811 Exception information:
2021-03-30T00:59:31,811 Traceback (most recent call last):
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 171, in _merge_into_criterion
2021-03-30T00:59:31,811     crit = self.state.criteria[name]
2021-03-30T00:59:31,811 KeyError: 'backend-ai-webserver'
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 During handling of the above exception, another exception occurred:
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 Traceback (most recent call last):
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 318, in resolve
2021-03-30T00:59:31,811     name, crit = self._merge_into_criterion(r, parent=None)
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 173, in _merge_into_criterion
2021-03-30T00:59:31,811     crit = Criterion.from_requirement(self._p, requirement, parent)
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 83, in from_requirement
2021-03-30T00:59:31,811     raise RequirementsConflicted(criterion)
2021-03-30T00:59:31,811 pip._vendor.resolvelib.resolvers.RequirementsConflicted: Requirements conflict: SpecifierRequirement('backend-ai-webserver==21.3.0.post1')
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 During handling of the above exception, another exception occurred:
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 Traceback (most recent call last):
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 122, in resolve
2021-03-30T00:59:31,811     requirements, max_rounds=try_to_avoid_resolution_too_deep,
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 453, in resolve
2021-03-30T00:59:31,811     state = resolution.resolve(requirements, max_rounds=max_rounds)
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 320, in resolve
2021-03-30T00:59:31,811     raise ResolutionImpossible(e.criterion.information)
2021-03-30T00:59:31,811 pip._vendor.resolvelib.resolvers.ResolutionImpossible: [RequirementInformation(requirement=SpecifierRequirement('backend-ai-webserver==21.3.0.post1'), parent=None)]
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 The above exception was the direct cause of the following exception:
2021-03-30T00:59:31,811 
2021-03-30T00:59:31,811 Traceback (most recent call last):
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 189, in _main
2021-03-30T00:59:31,811     status = self.run(options, args)
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 178, in wrapper
2021-03-30T00:59:31,811     return func(self, options, args)
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 159, in run
2021-03-30T00:59:31,811     reqs, check_supported_wheels=True
2021-03-30T00:59:31,811   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 127, in resolve
2021-03-30T00:59:31,811     six.raise_from(error, e)
2021-03-30T00:59:31,811   File "<string>", line 3, in raise_from
2021-03-30T00:59:31,811 pip._internal.exceptions.DistributionNotFound: No matching distribution found for backend-ai-webserver==21.3.0.post1
2021-03-30T00:59:31,815 Removed build tracker: '/tmp/pip-req-tracker-mtv4ajbd'