RACBacktrace dealloc crash

gistfile1.txt

(lldb) racbt
error: Trying to put the stack in unreadable memory at: 0x10f23ef80.
(lldb) bt
* thread #15: tid = 0x2cd18a, 0x00007fff90136fe6 libobjc.A.dylib`objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*>, objc::DenseMapInfo<unsigned long> >::find(objc_object* const&) + 4, queue = 'com.apple.root.default-priority, stop reason = EXC_BAD_ACCESS (code=2, address=0x10f23eff8)
    frame #0: 0x00007fff90136fe6 libobjc.A.dylib`objc::DenseMap<objc_object*, unsigned long, true, objc::DenseMapInfo<objc_object*>, objc::DenseMapInfo<unsigned long> >::find(objc_object* const&) + 4
    frame #1: 0x00007fff90136f5b libobjc.A.dylib`_objc_rootReleaseWasZero + 126
    frame #2: 0x00007fff9014f6f1 libobjc.A.dylib`-[NSObject release] + 17
    frame #3: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102188800, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #4: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #5: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #6: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #7: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218be00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #8: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #9: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #10: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #11: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218ca00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #12: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #13: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #14: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #15: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e6600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #16: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #17: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #18: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #19: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218b200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #20: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #21: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #22: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #23: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102910e00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #24: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #25: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #26: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #27: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000108015e00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #28: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #29: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #30: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #31: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000108014000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #32: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #33: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #34: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #35: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218ee00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #36: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #37: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #38: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #39: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218d000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #40: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #41: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #42: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #43: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218d600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #44: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #45: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #46: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #47: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001038e7600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #48: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #49: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #50: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #51: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102913200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #52: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #53: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #54: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #55: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218dc00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #56: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #57: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #58: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #59: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218e800, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #60: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #61: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #62: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #63: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218c400, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #64: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #65: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #66: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #67: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e6c00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #68: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #69: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #70: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #71: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102911400, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #72: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #73: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #74: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #75: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000105815a00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #76: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #77: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #78: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #79: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e7200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #80: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #81: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #82: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #83: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001038e7c00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #84: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #85: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #86: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #87: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000108016400, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #88: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #89: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #90: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #91: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102191200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #92: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #93: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #94: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #95: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102191e00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #96: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #97: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #98: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #99: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000105816000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #100: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #101: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #102: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #103: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000108016a00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #104: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #105: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #106: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #107: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001038e8200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #108: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #109: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #110: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #111: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e7800, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #112: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #113: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #114: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #115: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102191800, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #116: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #117: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #118: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #119: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218fa00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #120: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #121: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #122: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #123: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102911a00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #124: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #125: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #126: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #127: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x000000010218e200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #128: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #129: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #130: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #131: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102190600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #132: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #133: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #134: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #135: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e9000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #136: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #137: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #138: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #139: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001010e9600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #140: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #141: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #142: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #143: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102912000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #144: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #145: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #146: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #147: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102190000, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #148: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #149: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #150: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #151: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102190c00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #152: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #153: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #154: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #155: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x00000001038e8800, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #156: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #157: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #158: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #159: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102194200, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #160: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #161: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #162: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #163: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102192400, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #164: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #165: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #166: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #167: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102912600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #168: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #169: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #170: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #171: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000102912c00, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #172: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #173: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
    frame #174: 0x00007fff90137fa0 libobjc.A.dylib`object_dispose + 22
    frame #175: 0x00000001001fbe53 ReactiveCocoa`-[RACBacktrace .cxx_destruct](self=0x0000000105816600, _cmd=0x00007fff8e87e360) + 51 at RACBacktrace.m:153
    frame #176: 0x00007fff9013dfcc libobjc.A.dylib`object_cxxDestructFromClass(objc_object*, objc_class*) + 100
    frame #177: 0x00007fff90137922 libobjc.A.dylib`objc_destructInstance + 91
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