Details of failure 5b220e44-3aa8-439c-bb29-4f6c8299bf70

Upload ID
9cbe12de-4298-4802-9eed-d2bb7a13b251
Test case ID
4f837671-6233-41f1-94e8-01174d1da7b8
Message
Crash: xctest (66851): Namespace SIGNAL, Code 0x4 (#CharacterRangeLen=0)

Crash reports

035d983f-abfc-49c0-902b-a1b4e36fc888 (Download)

Original filename
xctest_2022-05-05-021913_D48E6F79-D77F-471F-AB4F-7922FD4E2BB5.crash
Process:               xctest [66851]
Path:                  /Applications/Xcode_12.4.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/Xcode/Agents/xctest
Identifier:            xctest
Version:               17501
Code Type:             X86-64 (Native)
Parent Process:        launchd_sim [66263]
Responsible:           SimulatorTrampoline [5622]
User ID:               501

Date/Time:             2022-05-05 02:19:13.879 +0000
OS Version:            Mac OS X 10.15.7 (19H1824)
Report Version:        12
Anonymous UUID:        28C488D7-2871-0137-7EA3-2D329D89124C


Time Awake Since Boot: 1700 seconds

System Integrity Protection: enabled

Crashed Thread:        6  Dispatch queue: io.ably.main

Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [66851]

Application Specific Information:
BUG IN CLIENT OF LIBDISPATCH: lock not owned by current thread
CoreSimulator 732.18.6 - Device: iPhone 12 (EBADA239-8E89-45A9-BA56-2390CD066751) - Runtime: iOS 14.4 (18D46) - DeviceType: iPhone 12

Thread 0:: Dispatch queue: com.apple.main-thread
0   com.apple.CoreFoundation      	0x00007fff203555ae _CFLocaleGetNoteCount + 7
1   com.apple.Foundation          	0x00007fff2075ab9c -[NSDateFormatter stringForObjectValue:] + 68
2   com.apple.dt.XCTest           	0x0000000108f9025e _XCINFLog + 431
3   com.apple.dt.XCTest           	0x0000000108fc3eee -[XCTRunnerIDESession testCaseWillStart:] + 112
4   com.apple.dt.XCTest           	0x0000000108f5ef90 __45-[XCTestObservationCenter _testCaseDidStart:]_block_invoke + 80
5   com.apple.dt.XCTest           	0x0000000108f60026 -[XCTestObservationCenter _performBlockOnObserversWhichRespondToSelector:block:] + 332
6   com.apple.dt.XCTest           	0x0000000108f5ee9c -[XCTestObservationCenter _testCaseDidStart:] + 254
7   com.apple.dt.XCTest           	0x0000000108f3ca6e -[XCTestCaseRun start] + 93
8   com.apple.dt.XCTest           	0x0000000108f49ee7 -[XCTestCase performTest:] + 279
9   com.apple.dt.XCTest           	0x0000000108f8fb83 -[XCTest runTest] + 57
10  com.apple.dt.XCTest           	0x0000000108f437b9 __27-[XCTestSuite performTest:]_block_invoke + 354
11  com.apple.dt.XCTest           	0x0000000108f42f8e __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
12  com.apple.dt.XCTest           	0x0000000108fb8d57 +[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 220
13  com.apple.dt.XCTest           	0x0000000108fb8c68 +[XCTContext runInContextForTestCase:block:] + 52
14  com.apple.dt.XCTest           	0x0000000108f42f45 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 148
15  com.apple.dt.XCTest           	0x0000000108f43277 -[XCTestSuite performTest:] + 281
16  com.apple.dt.XCTest           	0x0000000108f8fb83 -[XCTest runTest] + 57
17  com.apple.dt.XCTest           	0x0000000108f437b9 __27-[XCTestSuite performTest:]_block_invoke + 354
18  com.apple.dt.XCTest           	0x0000000108f42f8e __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
19  com.apple.dt.XCTest           	0x0000000108fb8d57 +[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 220
20  com.apple.dt.XCTest           	0x0000000108fb8c68 +[XCTContext runInContextForTestCase:block:] + 52
21  com.apple.dt.XCTest           	0x0000000108f42f45 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 148
22  com.apple.dt.XCTest           	0x0000000108f43277 -[XCTestSuite performTest:] + 281
23  com.apple.dt.XCTest           	0x0000000108f8fb83 -[XCTest runTest] + 57
24  com.apple.dt.XCTest           	0x0000000108f437b9 __27-[XCTestSuite performTest:]_block_invoke + 354
25  com.apple.dt.XCTest           	0x0000000108f42f8e __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
26  com.apple.dt.XCTest           	0x0000000108fb8d57 +[XCTContext runInContex