The relevant error (which is not a crash by the way):
:info:destroot dyld: Library not loaded: /opt/local/lib/libffi.5.dylib
:info:destroot Referenced from: /opt/local/lib/libpangocairo-1.0.0.dylib
:info:destroot Reason: image not found
So this says that libpangocairo (which is provided by the pango port) is trying to access version 5 of the libffi library (which is provided by the libffi port) but it wasn't there. This is because libffi was updated (in r93823) to a newer version which now provides libffi version 6. So pango now needs to be rebuilt. Therefore we increased pango's revision (in r93829).
So this error should not happen if your ports are up to date. Please run "sudo port selfupdate" and "sudo port upgrade outdated".