During a rebuild of all packages in unstable, your package failed to build.
Below you will find how the build ends (probably the most relevant part,
but not necessarily). If required, the full build log is available here:
I can reproduce the hang: It's pdflatex trying to render the doxygen-generated
tex file. Possibly an endless loop somewhere, but I didn't get very far
debugging it.
Any help would be appreciated.
Or the pdf build could be disabled until a fix has been found, to avoid
blocking the package.