[CRASH] swift::fatalError(unsigned int, char const*, ...)

[olehhrechyn]

Describe the bug

I was unable to reproduce this crash, but I am providing you with the data from Firebase Crashlytics.
Most importantly: this crash only occurs in Starscream version 4.0.6.

Stack trace:

Crashed: com.vluxe.starscream.networkstream
0 libsystem_kernel.dylib 0xa01c __pthread_kill + 8
1 libsystem_pthread.dylib 0x5680 pthread_kill + 268
2 libsystem_c.dylib 0x75bb0 abort + 180
3 libswiftCore.dylib 0x3a24d8 swift::fatalError(unsigned int, char const*, ...) + 126
4 libswiftCore.dylib 0x3a24f8 swift::warningv(unsigned int, char const*, char*) + 30
5 libswiftCore.dylib 0x3a6ef8 swift_deallocPartialClassInstance + 306
6 libswiftCore.dylib 0x3a6d88 _swift_release_dealloc + 56
7 libswiftCore.dylib 0x3a8424 bool swift::RefCounts<swift::RefCountBitsT<(swift::RefCountInlinedness)1> >::doDecrementSlow<(swift::PerformDeinit)1>(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 136
8 Network 0x193594 outlined consume of (@escaping @callee_guaranteed @sendable (@in_guaranteed NWConnection.State) -> ())? + 36
9 libswiftCore.dylib 0x3a6d88 _swift_release_dealloc + 56
10 libswiftCore.dylib 0x3a8424 bool swift::RefCounts<swift::RefCountBitsT<(swift::RefCountInlinedness)1> >::doDecrementSlow<(swift::PerformDeinit)1>(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 136
11 libsystem_blocks.dylib 0x2438 _call_dispose_helpers_excp + 48
12 libsystem_blocks.dylib 0x23ec _Block_release + 252
13 libsystem_blocks.dylib 0x22b4 bool HelperBase::disposeCapture<(HelperBase::BlockCaptureKind)4>(unsigned int, unsigned char*) + 68
14 libsystem_blocks.dylib 0x2538 HelperBase::destroyBlock(Block_layout*, bool, unsigned char*) + 180
15 libsystem_blocks.dylib 0x2450 _call_dispose_helpers_excp + 72
16 libsystem_blocks.dylib 0x23ec _Block_release + 252
17 libdispatch.dylib 0x464c __destroy_helper_block_8_32c35_ZTS29dispatch_block_private_data_s + 96
18 libsystem_blocks.dylib 0x2438 _call_dispose_helpers_excp + 48
19 libsystem_blocks.dylib 0x23ec _Block_release + 252
20 libdispatch.dylib 0x4300 _dispatch_client_callout + 20
21 libdispatch.dylib 0xb894 _dispatch_lane_serial_drain + 748
22 libdispatch.dylib 0xc3c4 _dispatch_lane_invoke + 380
23 libdispatch.dylib 0x17004 _dispatch_root_queue_drain_deferred_wlh + 288
24 libdispatch.dylib 0x16878 _dispatch_workloop_worker_thread + 404
25 libsystem_pthread.dylib 0x1964 _pthread_wqthread + 288
26 libsystem_pthread.dylib 0x1a04 start_wqthread + 8

Keys:

crash_info_entry_0	Object 0x280da5730 of class NWConnection deallocated with non-zero retain count 2. This object's deinit, or something called from it, may have created a strong reference to self which outlived deinit, resulting in a dangling reference.
crash_info_entry_1	abort() called