[...]

copying chardet/gb2312prober.py -> build-3/lib/chardet
copying chardet/__init__.py -> build-3/lib/chardet
copying chardet/escprober.py -> build-3/lib/chardet
copying chardet/sbcsgroupprober.py -> build-3/lib/chardet
copying chardet/latin1prober.py -> build-3/lib/chardet
copying chardet/sbcharsetprober.py -> build-3/lib/chardet
copying chardet/jpcntx.py -> build-3/lib/chardet
copying chardet/langturkishmodel.py -> build-3/lib/chardet
copying chardet/version.py -> build-3/lib/chardet
copying chardet/langgreekmodel.py -> build-3/lib/chardet
copying chardet/mbcsgroupprober.py -> build-3/lib/chardet
copying chardet/universaldetector.py -> build-3/lib/chardet
copying chardet/langbulgarianmodel.py -> build-3/lib/chardet
creating build-3/lib/chardet/cli
copying chardet/cli/chardetect.py -> build-3/lib/chardet/cli
copying chardet/cli/__init__.py -> build-3/lib/chardet/cli
+ pwd
+ PYTHONPATH=/tmp/B.dKdNBc/BUILD/chardet-3.0.4 /usr/bin/make -j4 -C docs html 'SPHINXBUILD=sphinx-build-3'
make: Entering directory '/tmp/B.dKdNBc/BUILD/chardet-3.0.4/docs'
sphinx-build-3 -b html -d _build/doctrees   . _build/html
Running Sphinx v1.7.6
Configuration error:
There is a programable error in your configuration file:
Traceback (most recent call last):
  File "/usr/share/python3.8/site-packages/sphinx/config.py", line 161, in __init__
    execfile_(filename, config)
  File "/usr/share/python3.8/site-packages/sphinx/util/pycompat.py", line 150, in execfile_
    exec_(code, _globals)
  File "conf.py", line 104, in <module>
    import sphinx_rtd_theme
ModuleNotFoundError: No module named 'sphinx_rtd_theme'
make: *** [Makefile:53: html] Error 2
make: Leaving directory '/tmp/B.dKdNBc/BUILD/chardet-3.0.4/docs'
error: Bad exit status from /tmp/B.dKdNBc/BUILD/tmp/rpm-tmp.81504 (%build)
RPM build errors:
    Bad exit status from /tmp/B.dKdNBc/BUILD/tmp/rpm-tmp.81504 (%build)
ended at: Sat Nov  9 21:36:57 2019, done in 0:00:01.102184
error: No files produced.
+ chmod -R u+rwX /tmp/B.dKdNBc/BUILD
+ rm -rf /tmp/B.dKdNBc/tmp /tmp/B.dKdNBc/BUILD
+ rm -rf /tmp/B.dKdNBc
Begin-TLD-Builder-Info
Build-Time: user:1.49s sys:0.25s real:1.78s (faults io:0 non-io:76731)
End-TLD-Builder-Info