Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
0x0000000003e52a3b in set_constraint_expand_flag (C=0x7ffff70aaa88, 
    panel=0x7fffbd1bd508, expand_flag=0)
    at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_templates.c:1936
1936	  con->ui_expand_flag = expand_flag;
#0  0x0000000003e52a3b in set_constraint_expand_flag (C=0x7ffff70aaa88, 
    panel=0x7fffbd1bd508, expand_flag=0)
    at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_templates.c:1936
#1  0x0000000003e305de in set_panels_list_data_expand_flag (C=0x7ffff70aaa88, 
    region=0x7fffb3ed2588)
    at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_panel.c:587
#2  0x0000000003e34d11 in ui_handle_panel_header (C=0x7ffff70aaa88, 
    block=0x7fffbab6c408, mx=593, my=8, event=1, ctrl=0, shift=0)
    at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_panel.c:2070
#3  0x0000000003e370c6 in ui_handler_panel_region (C=0x7ffff70aaa88, 
    event=0x7fffbbb77388, region=0x7fffb3ed2588, active_but=0x0)
    at /media/data/blender_guest/blender_master/source/blender/editors/interface------Ty--Ty--T----------------------T--T---Ty--T--T--Type--T-------Type <RET> for more, q to quit, c to continue without paging--c
/interface_panel.c:2790
#4  0x0000000003e10dfa in ui_region_handler (C=0x7ffff70aaa88, event=0x7fffbbb77388, UNUSED_userdata=0x0) at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_handlers.c:10646
#5  0x00000000031269dd in wm_handler_ui_call (C=0x7ffff70aaa88, handler=0x7fffd9a741a8, event=0x7fffbbb77388, always_pass=0) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:622
#6  0x000000000312c5ed in wm_handlers_do_intern (C=0x7ffff70aaa88, event=0x7fffbbb77388, handlers=0x7fffb3ed26d0) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:2743
#7  0x000000000312cfc9 in wm_handlers_do (C=0x7ffff70aaa88, event=0x7fffbbb77388, handlers=0x7fffb3ed26d0) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:2949
#8  0x000000000312e223 in wm_event_do_handlers (C=0x7ffff70aaa88) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:3357
#9  0x0000000003121a07 in WM_main (C=0x7ffff70aaa88) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm.c:475
#10 0x0000000002c80011 in main (argc=1, argv=0x7fffffffe608) at /media/data/blender_guest/blender_master/source/creator/creator.c:528
(gdb) c
Continuing.
Writing: /tmp/rain_rig.crash.txt