Traceback (most recent call last):


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 188, in _main

status = self.run(options, args)


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/cli/req_command.py", line 185, in wrapper

return func(self, options, args)


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 407, in run

use_user_site=options.use_user_site,


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/req/__init__.py", line 71, in install_given_reqs

**kwargs


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 845, in install

six.reraise(*exc.parent)


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_vendor/six.py", line 703, in reraise

raise value


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/operations/install/legacy.py", line 76, in install

cwd=unpacked_source_directory,


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/utils/subprocess.py", line 274, in runner

spinner=spinner,


 "/gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/lib/python3.7/site-packages/pip/_internal/utils/subprocess.py", line 241, in call_subprocess

raise InstallationError(exc_msg)
pip._internal.exceptions.InstallationError: Command errored out with exit status 1: /gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-om9yp6_k/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-om9yp6_k/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' --cpp_ext --cuda_ext install --record /tmp/pip-record-i3cdwd87/install-record.txt --single-version-externally-managed --compile --install-headers /gpfs/share/apps/anaconda3/gpu/5.2.0/envs/faiss/include/python3.7m/apex Check the logs for full command output.

Traceback (most recent call last):

 "/tmp/local-patch/lib/python2.7/site-packages/scikit_image-0.9dev-py2.7-linux-x86_64.egg/skimage/filter/tests/test_canny.py", line 66, in test_mask_none
result1 = F.canny(np.zeros((20, 20)), 4, 0, 0, np.ones((20, 20), bool))

 "/tmp/local-patch/lib/python2.7/site-packages/scikit_image-0.9dev-py2.7-linux-x86_64.egg/skimage/filter/_canny.py", line 260, in canny
labels, count = label(low_mask, np.ndarray((3, 3), bool))

 "/tmp/local-patch/lib/python2.7/site-packages/scipy/ndimage/measurements.py", line 187, in label
max_label = _ni_label._label(input, structure, output)

 "_ni_label.pyx", line 184, in _ni_label._label (scipy/ndimage/src/_ni_label.c:11515)

 "_ni_label.pyx", line 206, in _ni_label._label (scipy/ndimage/src/_ni_label.c:9986)AssertionError: Structuring element is not symmetric