2022-02-08T22:44:07,486 Created temporary directory: /tmp/pip-ephem-wheel-cache-cw0cs0hj
2022-02-08T22:44:07,492 Created temporary directory: /tmp/pip-req-tracker-rn8gfb87
2022-02-08T22:44:07,494 Initialized build tracking at /tmp/pip-req-tracker-rn8gfb87
2022-02-08T22:44:07,494 Created build tracker: /tmp/pip-req-tracker-rn8gfb87
2022-02-08T22:44:07,494 Entered build tracker: /tmp/pip-req-tracker-rn8gfb87
2022-02-08T22:44:07,496 Created temporary directory: /tmp/pip-wheel-bzu1pu39
2022-02-08T22:44:07,562 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2022-02-08T22:44:07,568 2 location(s) to search for versions of backport:
2022-02-08T22:44:07,568 * https://pypi.org/simple/backport/
2022-02-08T22:44:07,568 * https://www.piwheels.org/simple/backport/
2022-02-08T22:44:07,569 Fetching project page and analyzing links: https://pypi.org/simple/backport/
2022-02-08T22:44:07,570 Getting page https://pypi.org/simple/backport/
2022-02-08T22:44:07,573 Found index url https://pypi.org/simple
2022-02-08T22:44:07,779   Skipping link: No binaries permitted for backport: https://files.pythonhosted.org/packages/0e/11/b6402492b2423dc4f3b3f832e19834bfa739e492986871ebbf9bc80b8f2c/backport-0.1.0-py3-none-any.whl#sha256=58e9a7b705a3c25262f6ee236c223463d90a08757b1ef69359795b7b491b3fd4 (from https://pypi.org/simple/backport/) (requires-python:>=3.6,<4.0)
2022-02-08T22:44:07,781   Found link https://files.pythonhosted.org/packages/66/b9/730ee06bbffe5fc9e92ac812d83b00f25c1c3bea1990508fe149ee70a0a7/backport-0.1.0.tar.gz#sha256=c74eb8682272bff9367434ddae5e59788a7fd39d834284f4a6c040a0b8138906 (from https://pypi.org/simple/backport/) (requires-python:>=3.6,<4.0), version: 0.1.0
2022-02-08T22:44:07,782   Skipping link: No binaries permitted for backport: https://files.pythonhosted.org/packages/19/0b/5ce3369d6a5aa1472b43e0868840e9f17aa81fe6a2501454a70c7d22e525/backport-0.2.0-py3-none-any.whl#sha256=6cab2c23a55b108791b1ade08ceefb46936f5ad3b6d99ada67056273e41fe4c0 (from https://pypi.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:07,784   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/54/27/77a842c102da7192f9d42cd27a13b543732fb8f2990eb1ac9d5cf733c51b/backport-0.2.0.tar.gz#sha256=75abaafaf60367e0baa9cfb9f0fa997c76821e095467abe28b5935aa3ca32533 (from https://pypi.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:07,784   Skipping link: No binaries permitted for backport: https://files.pythonhosted.org/packages/71/0b/94c8759393ca1313f9af55a985bd4349d10711355c7c5ac15bed27420c9c/backport-0.3.0-py3-none-any.whl#sha256=3812d3f7b589bcf8d3ca9e68c63e718bd8202ca1f8d4976ad23ca1f9a4596e7b (from https://pypi.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:07,786   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/fa/11/b49c8d5875a7db3bff29d40383a3a24182491f51bfe953b448344e66add2/backport-0.3.0.tar.gz#sha256=985ddcda6035fcef78e3b08d2ffa8ac3dc79c30f5847d0997688ca67cdca7188 (from https://pypi.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:07,787 Fetching project page and analyzing links: https://www.piwheels.org/simple/backport/
2022-02-08T22:44:07,787 Getting page https://www.piwheels.org/simple/backport/
2022-02-08T22:44:07,789 Found index url https://www.piwheels.org/simple
2022-02-08T22:44:08,043   Skipping link: No binaries permitted for backport: https://www.piwheels.org/simple/backport/backport-0.1.0-py3-none-any.whl#sha256=bb1b64dcf485f95f5f18da52ed47aeacade9882df9f59d6a5e312b27de2cd19f (from https://www.piwheels.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:08,044   Skipping link: No binaries permitted for backport: https://www.piwheels.org/simple/backport/backport-0.2.0-py3-none-any.whl#sha256=523a189510f6e5ef674c40441b98d933e4a9c877028bc1b43973b95970b8f8dd (from https://www.piwheels.org/simple/backport/) (requires-python:>=3.8,<4.0)
2022-02-08T22:44:08,044 Skipping link: not a file: https://www.piwheels.org/simple/backport/
2022-02-08T22:44:08,045 Skipping link: not a file: https://pypi.org/simple/backport/
2022-02-08T22:44:08,079 Given no hashes to check 0 links for project 'backport': discarding no candidates
2022-02-08T22:44:08,080 ERROR: Could not find a version that satisfies the requirement backport==0.3.0 (from versions: 0.1.0)
2022-02-08T22:44:08,081 ERROR: No matching distribution found for backport==0.3.0
2022-02-08T22:44:08,081 Exception information:
2022-02-08T22:44:08,081 Traceback (most recent call last):
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 349, in resolve
2022-02-08T22:44:08,081     self._add_to_criteria(self.state.criteria, r, parent=None)
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 174, in _add_to_criteria
2022-02-08T22:44:08,081     raise RequirementsConflicted(criterion)
2022-02-08T22:44:08,081 pip._vendor.resolvelib.resolvers.RequirementsConflicted: Requirements conflict: SpecifierRequirement('backport==0.3.0')
2022-02-08T22:44:08,081 
2022-02-08T22:44:08,081 During handling of the above exception, another exception occurred:
2022-02-08T22:44:08,081 
2022-02-08T22:44:08,081 Traceback (most recent call last):
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 93, in resolve
2022-02-08T22:44:08,081     collected.requirements, max_rounds=try_to_avoid_resolution_too_deep
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 482, in resolve
2022-02-08T22:44:08,081     state = resolution.resolve(requirements, max_rounds=max_rounds)
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 351, in resolve
2022-02-08T22:44:08,081     raise ResolutionImpossible(e.criterion.information)
2022-02-08T22:44:08,081 pip._vendor.resolvelib.resolvers.ResolutionImpossible: [RequirementInformation(requirement=SpecifierRequirement('backport==0.3.0'), parent=None)]
2022-02-08T22:44:08,081 
2022-02-08T22:44:08,081 The above exception was the direct cause of the following exception:
2022-02-08T22:44:08,081 
2022-02-08T22:44:08,081 Traceback (most recent call last):
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 164, in exc_logging_wrapper
2022-02-08T22:44:08,081     status = run_func(*args)
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
2022-02-08T22:44:08,081     return func(self, options, args)
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 144, in run
2022-02-08T22:44:08,081     requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
2022-02-08T22:44:08,081   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 101, in resolve
2022-02-08T22:44:08,081     raise error from e
2022-02-08T22:44:08,081 pip._internal.exceptions.DistributionNotFound: No matching distribution found for backport==0.3.0
2022-02-08T22:44:08,090 Removed build tracker: '/tmp/pip-req-tracker-rn8gfb87'