The Raspberry Pi 3 has CPU architecture 'armv7l', while all the packages I distribute are built for 'amd64'. While it is possible to do a cross-compile, I have never attempted that with Cadabra's build system. I may give it a quick shot by playing with CPACK's parameters, but I don't have time to do much more.
If you have experience cross-compiling, you may want to give that a shot yourself. Or perhaps someone else here has attempted this?