2019-07-01T14:56:51 Created temporary directory: /tmp/pip-ephem-wheel-cache-1kayul3i
2019-07-01T14:56:51 Created temporary directory: /tmp/pip-req-tracker-duwp5_d4
2019-07-01T14:56:51 Created requirements tracker '/tmp/pip-req-tracker-duwp5_d4'
2019-07-01T14:56:51 Created temporary directory: /tmp/pip-wheel-p4i8nhom
2019-07-01T14:56:51 Collecting nester_cw==1.3.0
2019-07-01T14:56:51   1 location(s) to search for versions of nester-cw:
2019-07-01T14:56:51   * https://pypi.org/simple/nester-cw/
2019-07-01T14:56:51   Getting page https://pypi.org/simple/nester-cw/
2019-07-01T14:56:51   Analyzing links from page https://pypi.org/simple/nester-cw/
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/72/2c/fa5ae643574a8de93b59f18c827d95e3d38eac9d42bda700a42f7fef8720/nester_cw-1.0.0.tar.gz#sha256=557f87f18a6e433444fc602fbae1ca47d26574318f8c2a5e3fab7f3611494920 (from https://pypi.org/simple/nester-cw/), version: 1.0.0
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/fd/7a/bce21123eb812ad01ea504d56c4a34d7646336c3c09155a44b7618f0b7ff/nester_cw-1.1.0.tar.gz#sha256=18a43fd1573d3f37e62784aea86569e73b56a19636d4be49647ccdef80654976 (from https://pypi.org/simple/nester-cw/), version: 1.1.0
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/ed/ad/a71f48b5bcb2270902a4f53a8ebbd09d98db25b439820dc135fc311d32ef/nester_cw-1.2.0.tar.gz#sha256=6c798261fecbe37122530206accee5f0bb68c4f7e0a1d90829295e2eefdc21d7 (from https://pypi.org/simple/nester-cw/), version: 1.2.0
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/32/8e/2884dab8004af6cc18782bde2da77e10e6a751d58d3333af0c5f8b039b48/nester_cw-1.2.1.tar.gz#sha256=0022a73a7d72732d80be93cc58cc67840097c8a1a323dc2b4cf0ca81fe6d009e (from https://pypi.org/simple/nester-cw/), version: 1.2.1
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/d1/02/579fa1a600378ac0f758e55921a10777747d4451937915cd6b03b6f1e744/nester_cw-1.2.2.tar.gz#sha256=1e4aca0e933f66bc28d54c095f72cb55d2df67b7329fa36ed30ebe90e50db273 (from https://pypi.org/simple/nester-cw/), version: 1.2.2
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/43/83/979bb01f76e7ef561c291e4f80aa27f15e16f09ca9d173a43e4020a254f9/nester_cw-1.2.3.tar.gz#sha256=dd73f208a8d0b255934f46bb6665673cc817940d959027aa50969d642e1c4d07 (from https://pypi.org/simple/nester-cw/), version: 1.2.3
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/47/43/c8d87320b2bdb72a291ec8dae59def23f5eee505a6bb4cd73b3fbda72b56/nester_cw-1.2.5.tar.gz#sha256=29cae5f717d091145807732c657f043e6fd302a6330806e4bededb4cd51e7c3f (from https://pypi.org/simple/nester-cw/), version: 1.2.5
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/10/0f/09a4aa15d4724f24a5fe83c9aae1cf465e1527245b25718c5b8228d1b9e9/nester_cw-1.2.6.tar.gz#sha256=dc00a9e2c204e886afc363616d4f2cf5a628ff70f5f94333077bb6eecf042c6d (from https://pypi.org/simple/nester-cw/), version: 1.2.6
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/29/d6/d1b2d05c7a2716546c69df44f4633a4f9e705e2218da6ac34d59954ddb98/nester_cw-1.2.7.tar.gz#sha256=a8ed2208de0601b89493596b39078738f8643a8253be38f916e93797798131fd (from https://pypi.org/simple/nester-cw/), version: 1.2.7
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/ff/60/69d80eb0182ea28c10bfd4efe8e263418b08f1c98e9cfc34075b4f988de4/nester_cw-1.2.8.tar.gz#sha256=bf1035883295243aea896f6abdea7c6bb8891c7dd2ef097f74917bd74500e1d1 (from https://pypi.org/simple/nester-cw/), version: 1.2.8
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/02/fc/b7b69b124c9ee884fb75983c7a9f52f2c47a7fa5190bd61126fbd0c7d4ac/nester_cw-1.3.0.tar.gz#sha256=c4e9bf215050a03a2bffe74223a4576a6f6d1147a68b21e5579a66039348c402 (from https://pypi.org/simple/nester-cw/), version: 1.3.0
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/40/9c/6688c4f64a0856cea5e7d7360a52c56a8768e4628156c123012618e54b4f/nester_cw-1.3.1.tar.gz#sha256=837d1936c94ce66c69cb73865fbfe8c403a4e58f1c5ebd1b6393385ce7b49504 (from https://pypi.org/simple/nester-cw/), version: 1.3.1
2019-07-01T14:56:51     Found link https://files.pythonhosted.org/packages/70/65/f813f8dd2cfbaf662d1183fb69ff1953b4059783cd3c03a5fc0bd5bae1c3/nester_cw-1.3.2.tar.gz#sha256=1cbb2af51fa5ca63c43500c89059608a26730d1e10fe52b34548d81f2bdb1889 (from https://pypi.org/simple/nester-cw/), version: 1.3.2
2019-07-01T14:56:51   Using version 1.3.0 (newest of versions: 1.3.0)
2019-07-01T14:56:51   Created temporary directory: /tmp/pip-unpack-yz7rj115
2019-07-01T14:56:51   Downloading https://files.pythonhosted.org/packages/02/fc/b7b69b124c9ee884fb75983c7a9f52f2c47a7fa5190bd61126fbd0c7d4ac/nester_cw-1.3.0.tar.gz
2019-07-01T14:56:51   Downloading from URL https://files.pythonhosted.org/packages/02/fc/b7b69b124c9ee884fb75983c7a9f52f2c47a7fa5190bd61126fbd0c7d4ac/nester_cw-1.3.0.tar.gz#sha256=c4e9bf215050a03a2bffe74223a4576a6f6d1147a68b21e5579a66039348c402 (from https://pypi.org/simple/nester-cw/)
2019-07-01T14:56:51   Added nester_cw==1.3.0 from https://files.pythonhosted.org/packages/02/fc/b7b69b124c9ee884fb75983c7a9f52f2c47a7fa5190bd61126fbd0c7d4ac/nester_cw-1.3.0.tar.gz#sha256=c4e9bf215050a03a2bffe74223a4576a6f6d1147a68b21e5579a66039348c402 to build tracker '/tmp/pip-req-tracker-duwp5_d4'
2019-07-01T14:56:51     Running setup.py (path:/tmp/pip-wheel-p4i8nhom/nester-cw/setup.py) egg_info for package nester-cw
2019-07-01T14:56:51     Running command python setup.py egg_info
2019-07-01T14:56:52     /usr/lib/python3.7/distutils/core.py:108: DistDeprecationWarning: Features are deprecated and will be removed in a future version. See https://github.com/pypa/setuptools/issues/65.
2019-07-01T14:56:52       _setup_distribution = dist = klass(attrs)
2019-07-01T14:56:52     /usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'author_mail'
2019-07-01T14:56:52       warnings.warn(msg)
2019-07-01T14:56:52     Traceback (most recent call last):
2019-07-01T14:56:52       File "<string>", line 1, in <module>
2019-07-01T14:56:52       File "/tmp/pip-wheel-p4i8nhom/nester-cw/setup.py", line 10, in <module>
2019-07-01T14:56:52         features        = 'add optional parameter',
2019-07-01T14:56:52       File "/usr/lib/python3.7/distutils/core.py", line 108, in setup
2019-07-01T14:56:52         _setup_distribution = dist = klass(attrs)
2019-07-01T14:56:52       File "/usr/local/lib/python3.7/dist-packages/setuptools/dist.py", line 444, in __init__
2019-07-01T14:56:52         k: v for k, v in attrs.items()
2019-07-01T14:56:52       File "/usr/lib/python3.7/distutils/dist.py", line 292, in __init__
2019-07-01T14:56:52         self.finalize_options()
2019-07-01T14:56:52       File "/usr/local/lib/python3.7/dist-packages/setuptools/dist.py", line 726, in finalize_options
2019-07-01T14:56:52         self._set_global_opts_from_features()
2019-07-01T14:56:52       File "/usr/local/lib/python3.7/dist-packages/setuptools/dist.py", line 792, in _set_global_opts_from_features
2019-07-01T14:56:52         for name, feature in self.features.items():
2019-07-01T14:56:52     AttributeError: 'str' object has no attribute 'items'
2019-07-01T14:56:52 Cleaning up...
2019-07-01T14:56:52   Removing source in /tmp/pip-wheel-p4i8nhom/nester-cw
2019-07-01T14:56:52 Removed nester_cw==1.3.0 from https://files.pythonhosted.org/packages/02/fc/b7b69b124c9ee884fb75983c7a9f52f2c47a7fa5190bd61126fbd0c7d4ac/nester_cw-1.3.0.tar.gz#sha256=c4e9bf215050a03a2bffe74223a4576a6f6d1147a68b21e5579a66039348c402 from build tracker '/tmp/pip-req-tracker-duwp5_d4'
2019-07-01T14:56:52 Removed build tracker '/tmp/pip-req-tracker-duwp5_d4'
2019-07-01T14:56:52 ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-p4i8nhom/nester-cw/
2019-07-01T14:56:52 Exception information:
2019-07-01T14:56:52 Traceback (most recent call last):
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-07-01T14:56:52     status = self.run(options, args)
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-07-01T14:56:52     resolver.resolve(requirement_set)
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-07-01T14:56:52     self._resolve_one(requirement_set, req)
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-07-01T14:56:52     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-07-01T14:56:52     self.require_hashes
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 362, in prepare_linked_requirement
2019-07-01T14:56:52     abstract_dist.prep_for_dist(finder, self.build_isolation)
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 171, in prep_for_dist
2019-07-01T14:56:52     self.req.prepare_metadata()
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 537, in prepare_metadata
2019-07-01T14:56:52     self.run_egg_info()
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 615, in run_egg_info
2019-07-01T14:56:52     command_desc='python setup.py egg_info')
2019-07-01T14:56:52   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/utils/misc.py", line 776, in call_subprocess
2019-07-01T14:56:52     % (command_desc, proc.returncode, cwd))
2019-07-01T14:56:52 pip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-p4i8nhom/nester-cw/