I'm getting a ubsan test error in uuid/test/test_serialization - is the code in that test using archive the right way? testing.capture-output ../../../bin.v2/libs/uuid/test/test_serialization.test/gcc-7/debug/link-static/threadapi-pthread/test_serialization.run ====== BEGIN OUTPUT ====== ../../../boost/archive/detail/interface_oarchive.hpp:47:16: runtime error: downcast of address 0x7ffca0c6fe30 which does not point to an object of type 'text_oarchive' 0x7ffca0c6fe30: note: object is of type 'boost::archive::text_oarchive_implboost::archive::text_oarchive' 00 00 00 00 e0 2f 78 8f 48 56 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^~~~~~~~~~~~~~~~~~~~~~~ vptr for 'boost::archive::text_oarchive_implboost::archive::text_oarchive' EXIT STATUS: 1 ====== END OUTPUT ====== Thanks, Jim