2020-07-30T18:36:05,542 Created temporary directory: /tmp/pip-ephem-wheel-cache-r1_skv5h
2020-07-30T18:36:05,547 Created temporary directory: /tmp/pip-req-tracker-7b3t9em5
2020-07-30T18:36:05,547 Initialized build tracking at /tmp/pip-req-tracker-7b3t9em5
2020-07-30T18:36:05,548 Created build tracker: /tmp/pip-req-tracker-7b3t9em5
2020-07-30T18:36:05,549 Entered build tracker: /tmp/pip-req-tracker-7b3t9em5
2020-07-30T18:36:05,550 Created temporary directory: /tmp/pip-wheel-8vu57o1e
2020-07-30T18:36:05,568 1 location(s) to search for versions of butterfree:
2020-07-30T18:36:05,568 * https://pypi.org/simple/butterfree/
2020-07-30T18:36:05,568 Fetching project page and analyzing links: https://pypi.org/simple/butterfree/
2020-07-30T18:36:05,569 Getting page https://pypi.org/simple/butterfree/
2020-07-30T18:36:05,572 Found index url https://pypi.org/simple
2020-07-30T18:36:05,780   Skipping link: No binaries permitted for butterfree: https://files.pythonhosted.org/packages/9b/c4/d00af55221e41eed751172fb74b85047408da5af56d473c78b0c0199aed8/butterfree-1.0.0-py3-none-any.whl#sha256=bb5015449da72da40d544e1d3477f65535013f40cd04fb74dc392b182936a0b9 (from https://pypi.org/simple/butterfree/)
2020-07-30T18:36:05,781   Found link https://files.pythonhosted.org/packages/73/29/4db8ca36ca3b6ed1d270f9052aa8c2ae27e91a5dfbefe68ee42382d7942b/butterfree-1.0.0.tar.gz#sha256=3be2593c21099250e240bc53cfa43b92d4fae06574da09fdace6eaaec0a8c036 (from https://pypi.org/simple/butterfree/), version: 1.0.0
2020-07-30T18:36:05,782   Skipping link: No binaries permitted for butterfree: https://files.pythonhosted.org/packages/0b/c8/bf283234e207aee534caaf9bf9af048c59a55d75b12b3db45cfd37ccad8d/butterfree-1.0.1-py3-none-any.whl#sha256=8bea9c3847e9ae46700bf8486c0ee131fdbbd9786cda60fc60291c2ac8feb425 (from https://pypi.org/simple/butterfree/) (requires-python:>=3.6, <4)
2020-07-30T18:36:05,783   Found link https://files.pythonhosted.org/packages/8e/e3/a7bfa248e39d8067ae2791404c8891497f43320b2f92731b79a1d24b7841/butterfree-1.0.1.tar.gz#sha256=b68fff88c985a645f04c996113575194a20caf7a9837ff2cf2243128d5f221d4 (from https://pypi.org/simple/butterfree/) (requires-python:>=3.6, <4), version: 1.0.1
2020-07-30T18:36:05,790 Given no hashes to check 1 links for project 'butterfree': discarding no candidates
2020-07-30T18:36:05,791 Using version 1.0.1 (newest of versions: 1.0.1)
2020-07-30T18:36:05,797 Collecting butterfree==1.0.1
2020-07-30T18:36:05,801   Created temporary directory: /tmp/pip-unpack-e8oqzw4o
2020-07-30T18:36:06,009   Downloading butterfree-1.0.1.tar.gz (47 kB)
2020-07-30T18:36:06,444   Added butterfree==1.0.1 from https://files.pythonhosted.org/packages/8e/e3/a7bfa248e39d8067ae2791404c8891497f43320b2f92731b79a1d24b7841/butterfree-1.0.1.tar.gz#sha256=b68fff88c985a645f04c996113575194a20caf7a9837ff2cf2243128d5f221d4 to build tracker '/tmp/pip-req-tracker-7b3t9em5'
2020-07-30T18:36:06,447     Running setup.py (path:/tmp/pip-wheel-8vu57o1e/butterfree/setup.py) egg_info for package butterfree
2020-07-30T18:36:06,449     Created temporary directory: /tmp/pip-pip-egg-info-633sairy
2020-07-30T18:36:06,450     Running command python setup.py egg_info
2020-07-30T18:36:08,047     Traceback (most recent call last):
2020-07-30T18:36:08,048       File "<string>", line 1, in <module>
2020-07-30T18:36:08,048       File "/tmp/pip-wheel-8vu57o1e/butterfree/setup.py", line 7, in <module>
2020-07-30T18:36:08,049         with open("requirements.txt") as f:
2020-07-30T18:36:08,049     FileNotFoundError: [Errno 2] No such file or directory: 'requirements.txt'
2020-07-30T18:36:08,141 ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
2020-07-30T18:36:08,142 Exception information:
2020-07-30T18:36:08,142 Traceback (most recent call last):
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 188, in _main
2020-07-30T18:36:08,142     status = self.run(options, args)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 185, in wrapper
2020-07-30T18:36:08,142     return func(self, options, args)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 160, in run
2020-07-30T18:36:08,142     reqs, check_supported_wheels=True
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 179, in resolve
2020-07-30T18:36:08,142     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 362, in _resolve_one
2020-07-30T18:36:08,142     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 314, in _get_abstract_dist_for
2020-07-30T18:36:08,142     abstract_dist = self.preparer.prepare_linked_requirement(req)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 488, in prepare_linked_requirement
2020-07-30T18:36:08,142     req, self.req_tracker, self.finder, self.build_isolation,
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 91, in _get_prepared_distribution
2020-07-30T18:36:08,142     abstract_dist.prepare_distribution_metadata(finder, build_isolation)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/distributions/sdist.py", line 40, in prepare_distribution_metadata
2020-07-30T18:36:08,142     self.req.prepare_metadata()
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 550, in prepare_metadata
2020-07-30T18:36:08,142     self.metadata_directory = self._generate_metadata()
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 530, in _generate_metadata
2020-07-30T18:36:08,142     details=self.name or "from {}".format(self.link)
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/build/metadata_legacy.py", line 73, in generate_metadata
2020-07-30T18:36:08,142     command_desc='python setup.py egg_info',
2020-07-30T18:36:08,142   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/utils/subprocess.py", line 241, in call_subprocess
2020-07-30T18:36:08,142     raise InstallationError(exc_msg)
2020-07-30T18:36:08,142 pip._internal.exceptions.InstallationError: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
2020-07-30T18:36:08,156 Removed butterfree==1.0.1 from https://files.pythonhosted.org/packages/8e/e3/a7bfa248e39d8067ae2791404c8891497f43320b2f92731b79a1d24b7841/butterfree-1.0.1.tar.gz#sha256=b68fff88c985a645f04c996113575194a20caf7a9837ff2cf2243128d5f221d4 from build tracker '/tmp/pip-req-tracker-7b3t9em5'
2020-07-30T18:36:08,157 Removed build tracker: '/tmp/pip-req-tracker-7b3t9em5'