Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
__strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:96
96	../sysdeps/x86_64/multiarch/strlen-avx2.S: No such file or directory.
#0  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:96
#1  0x00007ffff7415d8e in __vfprintf_internal (s=s@entry=0x7fffffffd110, 
    format=format@entry=0xc1f9e90 "ID user decrement error: %s (from '%s'): %d <= %d", ap=ap@entry=0x7fffffffd2c0, mode_flags=mode_flags@entry=0)
    at vfprintf-internal.c:1645
#2  0x00007ffff742849f in __vsnprintf_internal (
    string=0x7fffffffd3e3 "ID user decrement error: DATA\310\004 (from '\n\365\377\177", maxlen=<optimised out>, 
    format=0xc1f9e90 "ID user decrement error: %s (from '%s'): %d <= %d", 
    args=0x7fffffffd2c0, mode_flags=0) at vsnprintf.c:114
#3  0x00000000039178d7 in clg_str_vappendf (cstr=0x7fffffffd330, 
    fmt=0xc1f9e90 "ID user decrement error: %s (from '%s'): %d <= %d", 
    args=0x7fffffffd348)
    at /media/data/blender_guest/blender_master/intern/clog/clog.c:189
#4  0x0000000003918409 in CLG_logf (lg=0x7fffbdcd4368, 
    severity=CLG_SEVERITY_ERROR, 
    file_line=0xc1f9ec8 "/media/data/blender_guest/blender_master/source/blender/blenkernel/intern/library.c:252", fn=0xc1fa648 <__func__.28698> "id_us_min", 
    fmt=0xc1f9e90 "ID user decrement error: %s (from '%s'): %d <= %d")
--Type <RET> for more, q to quit, c to continue without paging--c
    at /media/data/blender_guest/blender_master/intern/clog/clog.c:502
#5  0x00000000035d8813 in id_us_min (id=0x7fffb4fc6408) at /media/data/blender_guest/blender_master/source/blender/blenkernel/intern/library.c:247
#6  0x00000000035b86c6 in IDP_FreePropertyContent_ex (prop=0x7fffbd817608, do_id_user=true) at /media/data/blender_guest/blender_master/source/blender/blenkernel/intern/idprop.c:1077
#7  0x00000000035b86e7 in IDP_FreePropertyContent (prop=0x7fffbd817608) at /media/data/blender_guest/blender_master/source/blender/blenkernel/intern/idprop.c:1085
#8  0x0000000009a70298 in BPy_IDProperty_Map_ValidateAndCreate (name_obj=0x7fffc2ee3770, group=0x7fffbd817b08, ob=0x7fffbdf62488) at /media/data/blender_guest/blender_master/source/blender/python/generic/idprop_py_api.c:692
#9  0x0000000009a7045e in BPy_Wrap_SetMapItem (prop=0x7fffbd817b08, key=0x7fffc2ee3770, val=0x7fffbdf62488) at /media/data/blender_guest/blender_master/source/blender/python/generic/idprop_py_api.c:733
#10 0x0000000009a704a9 in BPy_IDGroup_Map_SetItem (self=0x7fffc2501420, key=0x7fffc2ee3770, val=0x7fffbdf62488) at /media/data/blender_guest/blender_master/source/blender/python/generic/idprop_py_api.c:744
#11 0x00000000034cdd70 in _PyEval_EvalFrameDefault (f=<optimised out>, throwflag=<optimised out>) at Python/ceval.c:1569
#12 0x00000000034c9260 in function_code_fastcall (co=co@entry=0x7fffc2fda810, args=<optimised out>, args@entry=0x7fffbdf555a0, nargs=nargs@entry=2, globals=globals@entry=0x7fffbde0dca8) at Objects/call.c:283
#13 0x0000000003ebb146 in _PyFunction_FastCallDict (func=0x7fffbdf57400, args=0x7fffbdf555a0, nargs=2, kwargs=0x0) at Objects/call.c:322
#14 0x000000000393e1d3 in bpy_class_call (C=0x7ffff4f72288, ptr=0x7fffffffdb30, func=0xfac3b60 <rna_Operator_execute_func>, parms=0x7fffffffdb50) at /media/data/blender_guest/blender_master/source/blender/python/intern/bpy_rna.c:8313
#15 0x0000000003b719d5 in rna_operator_execute_cb (C=0x7ffff4f72288, op=0x7fffbd5c95c8) at /media/data/blender_guest/blender_master/source/blender/makesrna/intern/rna_wm.c:1297
#16 0x0000000003b8df14 in wm_operator_invoke (C=0x7ffff4f72288, ot=0x7fffecbaca48, event=0x7fffec2e6b08, properties=0x0, reports=0x0, poll_only=false, use_last_properties=true) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:1452
#17 0x0000000003b8e713 in wm_operator_call_internal (C=0x7ffff4f72288, ot=0x7fffecbaca48, properties=0x0, reports=0x0, context=0, poll_only=false, event=0x7fffec2e6b08) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:1687
#18 0x0000000003b8e7cb in WM_operator_name_call_ptr (C=0x7ffff4f72288, ot=0x7fffecbaca48, context=0, properties=0x0) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:1701
#19 0x00000000055df12a in operator_call_cb (C=0x7ffff4f72288, UNUSED_arg1=0x0, arg2=0x7fffecbaca48) at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_templates.c:5866
#20 0x00000000055817f9 in ui_apply_but_funcs_after (C=0x7ffff4f72288) at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_handlers.c:852
#21 0x000000000559aae8 in ui_popup_handler (C=0x7ffff4f72288, event=0x7fffb337f308, userdata=0x7fffecbb3188) at /media/data/blender_guest/blender_master/source/blender/editors/interface/interface_handlers.c:10276
#22 0x0000000003b8ba7c in wm_handler_ui_call (C=0x7ffff4f72288, handler=0x7fffbdcd4368, event=0x7fffb337f308, always_pass=0) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:623
#23 0x0000000003b91224 in wm_handlers_do_intern (C=0x7ffff4f72288, event=0x7fffb337f308, handlers=0x7fffbce24198) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:2732
#24 0x0000000003b91fec in wm_handlers_do (C=0x7ffff4f72288, event=0x7fffb337f308, handlers=0x7fffbce24198) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:2978
#25 0x0000000003b93274 in wm_event_do_handlers (C=0x7ffff4f72288) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm_event_system.c:3356
#26 0x0000000003b85d51 in WM_main (C=0x7ffff4f72288) at /media/data/blender_guest/blender_master/source/blender/windowmanager/intern/wm.c:417
#27 0x00000000034d3ee1 in main (argc=1, argv=0x7fffffffe658) at /media/data/blender_guest/blender_master/source/creator/creator.c:491