https://ci.trafficserver.apache.org/job/ubuntu_16_04-master/compiler=clang,label=ubuntu_16_04,type=release/453/------------------------------------------ [...truncated 3780 lines...] make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '<https://ci.trafficserver.apache.org/job/ubuntu_16_04-master/compiler=clang,label=ubuntu_16_04,type=release/ws/453/build/BUILDS/rc'> Making all in doc make[1]: Entering directory '<https://ci.trafficserver.apache.org/job/ubuntu_16_04-master/compiler=clang,label=ubuntu_16_04,type=release/ws/453/build/BUILDS/doc'> PAPEROPT_a4="-D latex_paper_size=a4" PAPEROPT_letter="-D latex_paper_size=letter" PAPER="letter" ../../doc/sbuild sphinx-build -c ../../doc -d docbuild/doctrees -b man ../../doc docbuild/man Running Sphinx v1.3.6 making output directory... loading pickled environment... not yet created building [mo]: targets for 0 po files that are out of date building [man]: all manpages updating environment: 454 added, 0 changed, 0 removed reading sources... 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Exception occurred: File "/usr/lib/python2.7/dist-packages/sphinx/domains/cpp.py", line 656, in __init__ assert len(names) > 0 AssertionError The full traceback has been saved in /tmp/sphinx-err-JH7SKC.log, if you want to report the issue to the developers. Please also report this if it was a user error, so that a better error message can be provided next time. A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks! Makefile:978: recipe for target 'man' failed make[1]: *** [man] Error 1 make[1]: Leaving directory '<https://ci.trafficserver.apache.org/job/ubuntu_16_04-master/compiler=clang,label=ubuntu_16_04,type=release/ws/453/build/BUILDS/doc'> Makefile:663: recipe for target 'all-recursive' failed make: *** [all-recursive] Error 1 Build step 'Execute shell' marked build as failure