[...]

copying zipp.py -> build-2/lib
running egg_info
writing requirements to zipp.egg-info/requires.txt
writing zipp.egg-info/PKG-INFO
writing top-level names to zipp.egg-info/top_level.txt
writing dependency_links to zipp.egg-info/dependency_links.txt
reading manifest file 'zipp.egg-info/SOURCES.txt'
writing manifest file 'zipp.egg-info/SOURCES.txt'
+ LDFLAGS='-Wl,--as-needed -Wl,--no-copy-dt-needed-entries -Wl,-z,relro -Wl,-z,combreloc ' 
+ export LDFLAGS
+ CFLAGS=' -O2 -fwrapv -pipe -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -fPIC -march=x86-64 ' 
+ export CFLAGS
+ CXXFLAGS=' -O2 -fwrapv -pipe -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -fPIC -march=x86-64 ' 
+ export CXXFLAGS
+ CC=x86_64-tld-linux-gcc 
+ export CC
+ CXX=x86_64-tld-linux-g++ 
+ export CXX
+ /usr/bin/python3 setup.py build '--build-base=build-3'
running build
running build_py
creating build-3
creating build-3/lib
copying zipp.py -> build-3/lib
running egg_info
writing zipp.egg-info/PKG-INFO
writing dependency_links to zipp.egg-info/dependency_links.txt
writing requirements to zipp.egg-info/requires.txt
writing top-level names to zipp.egg-info/top_level.txt
reading manifest file 'zipp.egg-info/SOURCES.txt'
writing manifest file 'zipp.egg-info/SOURCES.txt'
+ sphinx-build-3 -b html docs docs/_build/html
Running Sphinx v1.7.6
Extension error:
Could not import extension jaraco.packaging.sphinx (exception: No module named 'importlib_metadata')
error: Bad exit status from /tmp/B.oTr5vY/BUILD/tmp/rpm-tmp.67740 (%build)
RPM build errors:
    Bad exit status from /tmp/B.oTr5vY/BUILD/tmp/rpm-tmp.67740 (%build)
ended at: Fri Nov  1 10:57:08 2019, done in 0:00:01.121044
error: No files produced.
+ chmod -R u+rwX /tmp/B.oTr5vY/BUILD
+ rm -rf /tmp/B.oTr5vY/tmp /tmp/B.oTr5vY/BUILD
+ rm -rf /tmp/B.oTr5vY
Begin-TLD-Builder-Info
Build-Time: user:1.40s sys:0.26s real:1.69s (faults io:0 non-io:104172)
End-TLD-Builder-Info