oh noes

backtrace

* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
  * frame #0: 0x00007fff7180933a libsystem_kernel.dylib`__pthread_kill + 10
    frame #1: 0x00007fff718c5e60 libsystem_pthread.dylib`pthread_kill + 430
    frame #2: 0x00007fff71790808 libsystem_c.dylib`abort + 120
    frame #3: 0x00007fff7178fac6 libsystem_c.dylib`__assert_rtn + 314
    frame #4: 0x00000001011d7ee3 node`uv_close.cold.1 + 35
    frame #5: 0x00000001009363d8 node`uv_close(handle=<unavailable>, close_cb=<unavailable>) at core.c:178:5 [opt]
    frame #6: 0x0000000102de1065 fse.node`fse::FSEvents::Stop(Nan::FunctionCallbackInfo<v8::Value> const&) [inlined] fse::FSEvents::asyncStop(this=<unavailable>) at async.cc:42:3 [opt]
    frame #7: 0x0000000102de104a fse.node`fse::FSEvents::Stop(info=0x00007ffeefbfe968) at methods.cc:33 [opt]
    frame #8: 0x0000000102de238d fse.node`Nan::imp::FunctionCallbackWrapper(info=0x00007ffeefbfe9f0) at nan_callbacks_12_inl.h:176:3 [opt]
    frame #9: 0x000000010024a488 node`v8::internal::FunctionCallbackArguments::Call(this=0x00007ffeefbfea58, handler=<unavailable>) at api-arguments-inl.h:158:3 [opt]
    frame #10: 0x0000000100249a49 node`v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(isolate=0x0000000108008000, function=<unavailable>, new_target=<unavailable>, fun_data=<unavailable>, receiver=<unavailable>, args=BuiltinArguments @ 0x00007ffeefbfeb00) at builtins-api.cc:111:36 [opt]
    frame #11: 0x00000001002491b2 node`v8::internal::Builtin_Impl_HandleApiCall(args=<unavailable>, isolate=0x0000000108008000) at builtins-api.cc:141:5 [opt]
    frame #12: 0x00000001009ce9d9 node`Builtins_CEntry_Return1_DontSaveFPRegs_ArgvOnStack_BuiltinExit + 57
    frame #13: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #14: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #15: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #16: 0x00000001009e09cc node`Builtins_ArrayForEach + 684
    frame #17: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #18: 0x00000001009e09cc node`Builtins_ArrayForEach + 684
    frame #19: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #20: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #21: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #22: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #23: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #24: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #25: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #26: 0x0000000100954284 node`Builtins_InterpreterEntryTrampoline + 676
    frame #27: 0x00000001009517fd node`Builtins_JSEntryTrampoline + 93
    frame #28: 0x00000001009515d8 node`Builtins_JSEntry + 120
    frame #29: 0x0000000100301c4f node`v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) [inlined] v8::internal::GeneratedCode<unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, long, unsigned long**>::Call(this=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>, args=<unavailable>) at simulator.h:136:12 [opt]
    frame #30: 0x0000000100301c4d node`v8::internal::(anonymous namespace)::Invoke(isolate=0x0000000108008000, params=0x00007ffeefbff2d8)::InvokeParams const&) at execution.cc:266 [opt]
    frame #31: 0x00000001003018db node`v8::internal::Execution::Call(isolate=0x0000000108008000, callable=<unavailable>, receiver=<unavailable>, argc=1, argv=0x0000000104204730) at execution.cc:358:10 [opt]
    frame #32: 0x00000001001fb890 node`v8::Function::Call(this=0x0000000103819180, context=<unavailable>, recv=<unavailable>, argc=<unavailable>, argv=0x0000000104204730) at api.cc:4917:7 [opt]
    frame #33: 0x0000000100002076 node`node::InternalMakeCallback(env=0x0000000104845a00, resource=<unavailable>, recv=<unavailable>, callback=<unavailable>, argc=0, argv=0x0000000000000000, asyncContext=(async_id = 0, trigger_async_id = 0)) at callback.cc:174:22 [opt]
    frame #34: 0x0000000100002305 node`node::MakeCallback(isolate=<unavailable>, recv=(val_ = 0x0000000104851a20), callback=<unavailable>, argc=0, argv=0x0000000000000000, asyncContext=(async_id = 0, trigger_async_id = 0)) at callback.cc:235:7 [opt]
    frame #35: 0x0000000100050b37 node`node::Environment::CheckImmediate(handle=<unavailable>) at env.cc:848:5 [opt]
    frame #36: 0x000000010093d214 node`uv__run_check(loop=0x0000000101ce2f50) at loop-watcher.c:67:1 [opt]
    frame #37: 0x0000000100936789 node`uv_run(loop=0x0000000101ce2f50, mode=UV_RUN_DEFAULT) at core.c:382:5 [opt]
    frame #38: 0x00000001000de182 node`node::NodeMainInstance::Run(this=0x00007ffeefbff750) at node_main_instance.cc:130:9 [opt]
    frame #39: 0x0000000100073a25 node`node::Start(argc=<unavailable>, argv=<unavailable>) at node.cc:992:38 [opt]
    frame #40: 0x00007fff716c1cc9 libdyld.dylib`start + 1