Assertion failed: (gc_locals.back() == (cell)this), function ~gc_root, file vm/local_roots.hpp, line 22.


Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib             	0x00007fff88605ff6 __kill + 10
1   libSystem.B.dylib             	0x00007fff886a7072 abort + 83
2   libSystem.B.dylib             	0x00007fff886940b4 __pthread_markcancel + 0
3   libfactor.dylib               	0x0000000100008586 factor::gc_root<factor::object>::~gc_root() + 76 (local_roots.hpp:22)
4   libfactor.dylib               	0x000000010000786f factor::allot_alien(unsigned long, unsigned long) + 249 (alien.cpp:45)
5   libfactor.dylib               	0x000000010001e7a7 factor::load_image(factor::vm_parameters*) + 338 (image.cpp:331)
6   libfactor.dylib               	0x000000010001d402 init_factor + 283 (factor.cpp:126)
7   libfactor.dylib               	0x000000010001d84f start_standalone_factor + 49 (factor.cpp:186)
8   factor                        	0x0000000100000e5a main + 27 (main-unix.cpp:6)
9   factor                        	0x0000000100000d20 start + 52