reading sources... [100%] user/basics.io.genfromtxt .. user/whatisnumpy

/home/circleci/repo/venv/lib/python3.9/site-packages/numpy/__init__.py:docstring of numpy.bartlett:78: WARNING: Exception occurred in plotting numpy-bartlett-1
 from /home/circleci/repo/doc/source/reference/generated/numpy.bartlett.rst:
Traceback (most recent call last):
  File "/home/circleci/repo/venv/lib/python3.9/site-packages/matplotlib/sphinxext/plot_directive.py", line 481, in _run_code
    exec(code, ns)
  File "<string>", line 3, in <module>
NameError: name 'plt' is not defined
/home/circleci/repo/venv/lib/python3.9/site-packages/numpy/__init__.py:docstring of numpy.blackman:70: WARNING: Exception occurred in plotting numpy-blackman-1
 from /home/circleci/repo/doc/source/reference/generated/numpy.blackman.rst:
Traceback (most recent call last):
  File "/home/circleci/repo/venv/lib/python3.9/site-packages/matplotlib/sphinxext/plot_directive.py", line 481, in _run_code
    exec(code, ns)
  File "<string>", line 3, in <module>
NameError: name 'plt' is not defined
/home/circleci/repo/doc/source/dev/depending_on_numpy.rst:: ERROR: Anonymous hyperlink mismatch: 1 references but 0 targets.
See "backrefs" attribute for IDs.
/home/circleci/repo/venv/lib/python3.9/site-packages/numpy/__init__.py:docstring of numpy.kaiser:100: WARNING: Exception occurred in plotting numpy-kaiser-1
 from /home/circleci/repo/doc/source/reference/generated/numpy.kaiser.rst:
Traceback (most recent call last):
  File "/home/circleci/repo/venv/lib/python3.9/site-packages/matplotlib/sphinxext/plot_directive.py", line 481, in _run_code
    exec(code, ns)
  File "<string>", line 3, in <module>
NameError: name 'plt' is not defined
looking for now-outdated files... none found
pickling environment... done