message: Debug bibtex output
diff: @@ -67,6 +67,8 @@ jobs:
  grep warning dox.log;
  cp dox.log version/doc/html/;
  cp -R version/doc/html /tmp/doxygen;
  + which bibtex;
  + which perl;
  - store_artifacts:
  path: /tmp/doxygen
  