2021-07-12T23:09:32,383 Created temporary directory: /tmp/pip-ephem-wheel-cache-fu_6t1w4
2021-07-12T23:09:32,386 Created temporary directory: /tmp/pip-req-tracker-extgjnvn
2021-07-12T23:09:32,387 Initialized build tracking at /tmp/pip-req-tracker-extgjnvn
2021-07-12T23:09:32,387 Created build tracker: /tmp/pip-req-tracker-extgjnvn
2021-07-12T23:09:32,387 Entered build tracker: /tmp/pip-req-tracker-extgjnvn
2021-07-12T23:09:32,388 Created temporary directory: /tmp/pip-wheel-jnd0lrlx
2021-07-12T23:09:32,420 1 location(s) to search for versions of interface-demo:
2021-07-12T23:09:32,420 * https://pypi.org/simple/interface-demo/
2021-07-12T23:09:32,421 Fetching project page and analyzing links: https://pypi.org/simple/interface-demo/
2021-07-12T23:09:32,422 Getting page https://pypi.org/simple/interface-demo/
2021-07-12T23:09:32,423 Found index url https://pypi.org/simple
2021-07-12T23:09:32,597   Found link https://files.pythonhosted.org/packages/bd/1c/ed967394c1a14bda87743c95ada206761e0d1de8ebed8ea718fed4f7f4c7/interface_demo-1.0.0.tar.gz#sha256=43530190b09c9c4eca4a1922bb25aefe88a25d09be3d526d36be5d51d3c6a00b (from https://pypi.org/simple/interface-demo/), version: 1.0.0
2021-07-12T23:09:32,597 Skipping link: not a file: https://pypi.org/simple/interface-demo/
2021-07-12T23:09:32,617 Given no hashes to check 1 links for project 'interface-demo': discarding no candidates
2021-07-12T23:09:32,638 Collecting interface-demo==1.0.0
2021-07-12T23:09:32,639   Created temporary directory: /tmp/pip-unpack-_w_7k1w0
2021-07-12T23:09:32,810   Downloading interface_demo-1.0.0.tar.gz (686 bytes)
2021-07-12T23:09:32,833   Added interface-demo==1.0.0 from https://files.pythonhosted.org/packages/bd/1c/ed967394c1a14bda87743c95ada206761e0d1de8ebed8ea718fed4f7f4c7/interface_demo-1.0.0.tar.gz#sha256=43530190b09c9c4eca4a1922bb25aefe88a25d09be3d526d36be5d51d3c6a00b to build tracker '/tmp/pip-req-tracker-extgjnvn'
2021-07-12T23:09:32,834 ERROR: File "setup.py" not found for legacy project interface-demo==1.0.0 from https://files.pythonhosted.org/packages/bd/1c/ed967394c1a14bda87743c95ada206761e0d1de8ebed8ea718fed4f7f4c7/interface_demo-1.0.0.tar.gz#sha256=43530190b09c9c4eca4a1922bb25aefe88a25d09be3d526d36be5d51d3c6a00b.
2021-07-12T23:09:32,834 Exception information:
2021-07-12T23:09:32,834 Traceback (most recent call last):
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/base_command.py", line 180, in _main
2021-07-12T23:09:32,834     status = self.run(options, args)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/req_command.py", line 205, in wrapper
2021-07-12T23:09:32,834     return func(self, options, args)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/commands/wheel.py", line 142, in run
2021-07-12T23:09:32,834     requirement_set = resolver.resolve(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 127, in resolve
2021-07-12T23:09:32,834     result = self._result = resolver.resolve(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 473, in resolve
2021-07-12T23:09:32,834     state = resolution.resolve(requirements, max_rounds=max_rounds)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 341, in resolve
2021-07-12T23:09:32,834     name, crit = self._merge_into_criterion(r, parent=None)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 172, in _merge_into_criterion
2021-07-12T23:09:32,834     if not criterion.candidates:
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/structs.py", line 139, in __bool__
2021-07-12T23:09:32,834     return bool(self._sequence)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 143, in __bool__
2021-07-12T23:09:32,834     return any(self)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 129, in <genexpr>
2021-07-12T23:09:32,834     return (c for c in iterator if id(c) not in self._incompatible_ids)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 33, in _iter_built
2021-07-12T23:09:32,834     candidate = func()
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 200, in _make_candidate_from_link
2021-07-12T23:09:32,834     self._link_candidate_cache[link] = LinkCandidate(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 306, in __init__
2021-07-12T23:09:32,834     super().__init__(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 151, in __init__
2021-07-12T23:09:32,834     self.dist = self._prepare()
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 234, in _prepare
2021-07-12T23:09:32,834     dist = self._prepare_distribution()
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 317, in _prepare_distribution
2021-07-12T23:09:32,834     return self._factory.preparer.prepare_linked_requirement(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 508, in prepare_linked_requirement
2021-07-12T23:09:32,834     return self._prepare_linked_requirement(req, parallel_builds)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 570, in _prepare_linked_requirement
2021-07-12T23:09:32,834     dist = _get_prepared_distribution(
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 60, in _get_prepared_distribution
2021-07-12T23:09:32,834     abstract_dist.prepare_distribution_metadata(finder, build_isolation)
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 36, in prepare_distribution_metadata
2021-07-12T23:09:32,834     self.req.prepare_metadata()
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/req/req_install.py", line 549, in prepare_metadata
2021-07-12T23:09:32,834     self.metadata_directory = self._generate_metadata()
2021-07-12T23:09:32,834   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/req/req_install.py", line 520, in _generate_metadata
2021-07-12T23:09:32,834     raise InstallationError(
2021-07-12T23:09:32,834 pip._internal.exceptions.InstallationError: File "setup.py" not found for legacy project interface-demo==1.0.0 from https://files.pythonhosted.org/packages/bd/1c/ed967394c1a14bda87743c95ada206761e0d1de8ebed8ea718fed4f7f4c7/interface_demo-1.0.0.tar.gz#sha256=43530190b09c9c4eca4a1922bb25aefe88a25d09be3d526d36be5d51d3c6a00b.
2021-07-12T23:09:32,845 Removed interface-demo==1.0.0 from https://files.pythonhosted.org/packages/bd/1c/ed967394c1a14bda87743c95ada206761e0d1de8ebed8ea718fed4f7f4c7/interface_demo-1.0.0.tar.gz#sha256=43530190b09c9c4eca4a1922bb25aefe88a25d09be3d526d36be5d51d3c6a00b from build tracker '/tmp/pip-req-tracker-extgjnvn'
2021-07-12T23:09:32,845 Removed build tracker: '/tmp/pip-req-tracker-extgjnvn'