=================================================================
2022-04-01 00:39:34.952952-0700 xctest[29357:174563] CouchbaseLite Network WARNING: {BLIPIO#89} onWebSocketMessages couldn't find any messages to process
==29357==ERROR: AddressSanitizer: heap-use-after-free on address 0x6070001e5898 at pc 0x000110735549 bp 0x7000025516b0 sp 0x7000025516a8
READ of size 1 at 0x6070001e5898 thread T10
    #0 0x110735548 in litecore::actor::Timer::state std::__1::__cxx_atomic_load<litecore::actor::Timer::state>(std::__1::__cxx_atomic_base_impl<litecore::actor::Timer::state> const*, std::__1::memory_order) atomic:1010
    #1 0x11073541a in std::__1::__atomic_base<litecore::actor::Timer::state, false>::load(std::__1::memory_order) const atomic:1643
    #2 0x110732f89 in std::__1::__atomic_base<litecore::actor::Timer::state, false>::operator litecore::actor::Timer::state() const atomic:1647
    #3 0x110733ed1 in litecore::actor::Timer::Manager::setFireTime(litecore::actor::Timer*, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >, bool) Timer.cc:109
    #4 0x1106a9895 in litecore::actor::Timer::fireAfter(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> >) Timer.hh:60
    #5 0x1106a95eb in void litecore::actor::Timer::fireAfter<long long, std::__1::ratio<1l, 1l> >(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1l> > const&) Timer.hh:69
    #6 0x1102b3cc4 in litecore::websocket::WebSocketImpl::startResponseTimer(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1l> >) WebSocketImpl.cc:392
    #7 0x1102bb9e0 in litecore::websocket::WebSocketImpl::callRequestClose(int, fleece::slice) WebSocketImpl.cc:459
    #8 0x1102be66c in litecore::websocket::WebSocketImpl::close(int, fleece::slice) WebSocketImpl.cc:511
    #9 0x11072f735 in litecore::blip::BLIPIO::_close(litecore::websocket::CloseCode, fleece::alloc_slice) BLIPConnection.cc:217
    #10 0x11072fa11 in invocation function for block in void litecore::actor::Actor::enqueue<litecore::blip::BLIPIO, litecore::websocket::CloseCode, fleece::alloc_slice>(char const*, void (litecore::blip::BLIPIO::*)(litecore::websocket::CloseCode, fleece::alloc_slice), litecore::websocket::CloseCode, fleece::alloc_slice) Actor.hh:111
    #11 0x1102447ec in litecore::actor::GCDMailbox::safelyCall(void () block_pointer) const GCDMailbox.cc:81
    #12 0x110244def in invocation function for block in litecore::actor::GCDMailbox::enqueue(char const*, void () block_pointer) GCDMailbox.cc:116
    #13 0x10052c7ca in __wrap_dispatch_async_block_invoke+0xca (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x477ca)
    #14 0x7ff80f24c0cb in _dispatch_call_block_and_release+0xb (libdispatch.dylib:x86_64+0x20cb)
    #15 0x7ff80f24d316 in _dispatch_client_callout+0x7 (libdispatch.dylib:x86_64+0x3316)
    #16 0x7ff80f253316 in _dispatch_lane_serial_drain+0x29f (libdispatch.dylib:x86_64+0x9316)
    #17 0x7ff80f253dfc in _dispatch_lane_invoke+0x16d (libdispatch.dylib:x86_64+0x9dfc)
    #18 0x7ff80f25deed in _dispatch_workloop_worker_thread+0x2f0 (libdispatch.dylib:x86_64+0x13eed)
    #19 0x7ff80f404fcf in _pthread_wqthread+0x145 (libsystem_pthread.dylib:x86_64+0x2fcf)
    #20 0x7ff80f403f56 in start_wqthread+0xe (libsystem_pthread.dylib:x86_64+0x1f56)

0x6070001e5898 is located 56 bytes inside of 80-byte region [0x6070001e5860,0x6070001e58b0)
freed by thread T4 here:
    #0 0x10053c66d in wrap__ZdlPv+0x7d (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x5766d)
    #1 0x1102d9393 in std::__1::default_delete<litecore::actor::Timer>::operator()(litecore::actor::Timer*) const unique_ptr.h:57
    #2 0x1102b48a5 in std::__1::unique_ptr<litecore::actor::Timer, std::__1::default_delete<litecore::actor::Timer> >::reset(litecore::actor::Timer*) unique_ptr.h:318
    #3 0x1102bbfed in litecore::websocket::WebSocketImpl::onClose(litecore::websocket::CloseStatus) WebSocketImpl.cc:591
    #4 0x11056ee83 in litecore::repl::C4SocketImpl::closed(C4Error) c4Socket.cc:223
    #5 0x11056f404 in non-virtual thunk to litecore::repl::C4SocketImpl::closed(C4Error) c4Socket.cc
    #6 0x110580f97 in c4socket_closed c4Replicator_CAPI.cc:252
    #7 0x11001d3e3 in __37-[CBLMessageSocket connectionClosed:]_block_invoke CBLMessageSocket.mm:217
    #8 0x10052c7ca in __wrap_dispatch_async_block_invoke+0xca (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x477ca)
    #9 0x7ff80f24c0cb in _dispatch_call_block_and_release+0xb (libdispatch.dylib:x86_64+0x20cb)
    #10 0x7ff80f24d316 in _dispatch_client_callout+0x7 (libdispatch.dylib:x86_64+0x3316)
    #11 0x7ff80f253316 in _dispatch_lane_serial_drain+0x29f (libdispatch.dylib:x86_64+0x9316)
    #12 0x7ff80f253dfc in _dispatch_lane_invoke+0x16d (libdispatch.dylib:x86_64+0x9dfc)
    #13 0x7ff80f25deed in _dispatch_workloop_worker_thread+0x2f0 (libdispatch.dylib:x86_64+0x13eed)
    #14 0x7ff80f404fcf in _pthread_wqthread+0x145 (libsystem_pthread.dylib:x86_64+0x2fcf)
    #15 0x7ff80f403f56 in start_wqthread+0xe (libsystem_pthread.dylib:x86_64+0x1f56)

previously allocated by thread T7 here:
    #0 0x10053c24d in wrap__Znwm+0x7d (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x5724d)
    #1 0x1102b2323 in litecore::websocket::WebSocketImpl::WebSocketImpl(fleece::alloc_slice const&, litecore::websocket::Role, bool, litecore::websocket::WebSocketImpl::Parameters const&) WebSocketImpl.cc:100
    #2 0x11056ac6f in litecore::repl::C4SocketImpl::C4SocketImpl(fleece::alloc_slice, litecore::websocket::Role, fleece::alloc_slice, C4SocketFactory const*, void*) c4Socket.cc:117
    #3 0x11056957a in litecore::repl::C4SocketImpl::C4SocketImpl(fleece::alloc_slice, litecore::websocket::Role, fleece::alloc_slice, C4SocketFactory const*, void*) c4Socket.cc:122
    #4 0x1105697d4 in litecore::repl::CreateWebSocket(fleece::alloc_slice, fleece::alloc_slice, C4Database*, C4SocketFactory const*, void*) c4Socket.cc:86
    #5 0x110698b35 in litecore::C4RemoteReplicator::createReplicator() c4RemoteReplicator.hh:131
    #6 0x11069912a in litecore::C4ReplicatorImpl::_start(bool) c4ReplicatorImpl.hh:299
    #7 0x1106a8271 in litecore::C4RemoteReplicator::_restart(bool) c4RemoteReplicator.hh:147
    #8 0x1106985c3 in litecore::C4RemoteReplicator::retry(bool) c4RemoteReplicator.hh:82
    #9 0x1106a6f04 in decltype(*(static_cast<litecore::C4RemoteReplicator*&>(fp0)).*fp(static_cast<bool&>(fp1))) std::__1::__invoke<bool (litecore::C4RemoteReplicator::*&)(bool), litecore::C4RemoteReplicator*&, bool&, void>(bool (litecore::C4RemoteReplicator::*&)(bool), litecore::C4RemoteReplicator*&, bool&) type_traits:3859
    #10 0x1106a6d99 in std::__1::__bind_return<bool (litecore::C4RemoteReplicator::*)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>, std::__1::tuple<>, __is_valid_bind_return<bool (litecore::C4RemoteReplicator::*)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<bool (litecore::C4RemoteReplicator::*)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>, 0ul, 1ul, std::__1::tuple<> >(bool (litecore::C4RemoteReplicator::*&)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>&, std::__1::__tuple_indices<0ul, 1ul>, std::__1::tuple<>&&) bind.h:257
    #11 0x1106a6cb6 in std::__1::__bind_return<bool (litecore::C4RemoteReplicator::*)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>, std::__1::tuple<>, __is_valid_bind_return<bool (litecore::C4RemoteReplicator::*)(bool), std::__1::tuple<litecore::C4RemoteReplicator*, bool>, std::__1::tuple<> >::value>::type std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>::operator()<>() bind.h:292
    #12 0x1106a6bc4 in decltype(static_cast<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>&>(fp)()) std::__1::__invoke<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>&>(std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>&) type_traits:3918
    #13 0x1106a6b7c in void std::__1::__invoke_void_return_wrapper<void, true>::__call<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>&>(std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>&) invoke.h:61
    #14 0x1106a6b4c in std::__1::__function::__alloc_func<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>, std::__1::allocator<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool> >, void ()>::operator()() function.h:178
    #15 0x1106a3698 in std::__1::__function::__func<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool>, std::__1::allocator<std::__1::__bind<bool (litecore::C4RemoteReplicator::*)(bool), litecore::C4RemoteReplicator*, bool> >, void ()>::operator()() function.h:352
    #16 0x110738e5b in std::__1::__function::__value_func<void ()>::operator()() const function.h:505
    #17 0x110732994 in std::__1::function<void ()>::operator()() const function.h:1182
    #18 0x110731d9e in litecore::actor::Timer::Manager::run() Timer.cc:52
    #19 0x110737284 in litecore::actor::Timer::Manager::Manager()::$_0::operator()() const Timer.cc:28
    #20 0x110737204 in decltype(static_cast<litecore::actor::Timer::Manager::Manager()::$_0>(fp)()) std::__1::__invoke<litecore::actor::Timer::Manager::Manager()::$_0>(litecore::actor::Timer::Manager::Manager()::$_0&&) type_traits:3918
    #21 0x110736fb4 in void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, litecore::actor::Timer::Manager::Manager()::$_0>(std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, litecore::actor::Timer::Manager::Manager()::$_0>&, std::__1::__tuple_indices<>) thread:287
    #22 0x110735e9f in void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, litecore::actor::Timer::Manager::Manager()::$_0> >(void*) thread:298
    #23 0x7ff80f4084e0 in _pthread_start+0x7c (libsystem_pthread.dylib:x86_64+0x64e0)
    #24 0x7ff80f403f6a in thread_start+0xe (libsystem_pthread.dylib:x86_64+0x1f6a)

Thread T10 created by T6 here:
    <empty stack>

Thread T6 created by T1 here:
    <empty stack>

Thread T1 created by T0 here:
    <empty stack>

Thread T4 created by T3 here:
    <empty stack>

Thread T3 created by T1 here:
    <empty stack>

Thread T7 created by T3 here:
    #0 0x10052771c in wrap_pthread_create+0x5c (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x4271c)
    #1 0x110735d78 in std::__1::__libcpp_thread_create(_opaque_pthread_t**, void* (*)(void*), void*) __threading_support:421
    #2 0x1107358fc in std::__1::thread::thread<litecore::actor::Timer::Manager::Manager()::$_0, void>(litecore::actor::Timer::Manager::Manager()::$_0&&) thread:314
    #3 0x1107319bc in std::__1::thread::thread<litecore::actor::Timer::Manager::Manager()::$_0, void>(litecore::actor::Timer::Manager::Manager()::$_0&&) thread:306
    #4 0x11073183c in litecore::actor::Timer::Manager::Manager() Timer.cc:28
    #5 0x1107316e4 in litecore::actor::Timer::Manager::Manager() Timer.cc:29
    #6 0x11073165c in litecore::actor::Timer::manager() Timer.cc:22
    #7 0x1106a97c9 in litecore::actor::Timer::fireAfter(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> >) Timer.hh:60
    #8 0x1106a95eb in void litecore::actor::Timer::fireAfter<long long, std::__1::ratio<1l, 1l> >(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1l> > const&) Timer.hh:69
    #9 0x1102b3cc4 in litecore::websocket::WebSocketImpl::startResponseTimer(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1l> >) WebSocketImpl.cc:392
    #10 0x1102b3ad4 in litecore::websocket::WebSocketImpl::connect() WebSocketImpl.cc:121
    #11 0x11056baf9 in litecore::repl::C4SocketImpl::connect() c4Socket.cc:149
    #12 0x1103d1912 in litecore::websocket::WebSocket::connect(litecore::websocket::Delegate*) WebSocketInterface.cc:52
    #13 0x110727a0c in litecore::blip::BLIPIO::_start() BLIPConnection.cc:211
    #14 0x1107242d3 in invocation function for block in void litecore::actor::Actor::enqueue<litecore::blip::BLIPIO>(char const*, void (litecore::blip::BLIPIO::*)()) Actor.hh:111
    #15 0x1102447ec in litecore::actor::GCDMailbox::safelyCall(void () block_pointer) const GCDMailbox.cc:81
    #16 0x110244def in invocation function for block in litecore::actor::GCDMailbox::enqueue(char const*, void () block_pointer) GCDMailbox.cc:116
    #17 0x10052c7ca in __wrap_dispatch_async_block_invoke+0xca (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x477ca)
    #18 0x7ff80f24c0cb in _dispatch_call_block_and_release+0xb (libdispatch.dylib:x86_64+0x20cb)
    #19 0x7ff80f24d316 in _dispatch_client_callout+0x7 (libdispatch.dylib:x86_64+0x3316)
    #20 0x7ff80f253316 in _dispatch_lane_serial_drain+0x29f (libdispatch.dylib:x86_64+0x9316)
    #21 0x7ff80f253dfc in _dispatch_lane_invoke+0x16d (libdispatch.dylib:x86_64+0x9dfc)
    #22 0x7ff80f25deed in _dispatch_workloop_worker_thread+0x2f0 (libdispatch.dylib:x86_64+0x13eed)
    #23 0x7ff80f404fcf in _pthread_wqthread+0x145 (libsystem_pthread.dylib:x86_64+0x2fcf)
    #24 0x7ff80f403f56 in start_wqthread+0xe (libsystem_pthread.dylib:x86_64+0x1f56)

SUMMARY: AddressSanitizer: heap-use-after-free atomic:1010 in litecore::actor::Timer::state std::__1::__cxx_atomic_load<litecore::actor::Timer::state>(std::__1::__cxx_atomic_base_impl<litecore::actor::Timer::state> const*, std::__1::memory_order)
Shadow bytes around the buggy address:
  0x1c0e0003cac0: fd fd fa fa fa fa fd fd fd fd fd fd fd fd fd fd
  0x1c0e0003cad0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fa fa
  0x1c0e0003cae0: fa fa fd fd fd fd fd fd fd fd fd fd fa fa fa fa
  0x1c0e0003caf0: fd fd fd fd fd fd fd fd fd fd fa fa fa fa fd fd
  0x1c0e0003cb00: fd fd fd fd fd fd fd fd fa fa fa fa fd fd fd fd
=>0x1c0e0003cb10: fd fd fd[fd]fd fd fa fa fa fa fd fd fd fd fd fd
  0x1c0e0003cb20: fd fd fd fd fa fa fa fa fd fd fd fd fd fd fd fd
  0x1c0e0003cb30: fd fd fa fa fa fa fd fd fd fd fd fd fd fd fd fd
  0x1c0e0003cb40: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fa fa
  0x1c0e0003cb50: fa fa fd fd fd fd fd fd fd fd fd fd fa fa fa fa
  0x1c0e0003cb60: 00 00 00 00 00 00 00 00 00 00 fa fa fa fa 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==29357==ABORTING
Warning: hit breakpoint while running function, skipping commands and conditions to prevent recursion.
AddressSanitizer report breakpoint hit. Use 'thread info -s' to get extended information about the report.
(lldb) 

---------------------------------
---------------------------------
---------------------------------
------------BT ALL --------------
---------------------------------
---------------------------------
---------------------------------
---------------------------------

(lldb) bt all
  thread #1, queue = 'com.apple.main-thread'
    frame #0: 0x00007ff80f3cb97a libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0x00007ff80f3cbce8 libsystem_kernel.dylib`mach_msg + 56
    frame #2: 0x00007ff80f4cecdd CoreFoundation`__CFRunLoopServiceMachPort + 319
    frame #3: 0x00007ff80f4cd368 CoreFoundation`__CFRunLoopRun + 1276
    frame #4: 0x00007ff80f4cc7ac CoreFoundation`CFRunLoopRunSpecific + 562
    frame #5: 0x000000010170534a XCTestCore`-[XCTWaiter waitForExpectations:timeout:enforceOrder:] + 886
    frame #6: 0x0000000101707876 XCTestCore`+[XCTWaiter waitForExpectations:timeout:enforceOrder:] + 80
    frame #7: 0x000000010cb2809a CouchbaseLiteTests`-[ReplicatorTest runWithReplicator:reset:errorCode:errorDomain:](self=0x0000612000028fc0, _cmd="runWithReplicator:reset:errorCode:errorDomain:", replicator=0x00006100000c4940, reset=YES, errorCode=0, errorDomain=0x0000000000000000) at ReplicatorTest.m:424:34
    frame #8: 0x000000010cb25f71 CouchbaseLiteTests`-[ReplicatorTest run:reset:errorCode:errorDomain:onReplicatorReady:](self=0x0000612000028fc0, _cmd="run:reset:errorCode:errorDomain:onReplicatorReady:", config=0x000060d0000bcdf0, reset=YES, errorCode=0, errorDomain=0x0000000000000000, onReplicatorReady=(null)) at ReplicatorTest.m:327:12
    frame #9: 0x000000010cb259a3 CouchbaseLiteTests`-[ReplicatorTest run:reset:errorCode:errorDomain:](self=0x0000612000028fc0, _cmd="run:reset:errorCode:errorDomain:", config=0x000060d0000bcdf0, reset=YES, errorCode=0, errorDomain=0x0000000000000000) at ReplicatorTest.m:310:12
    frame #10: 0x000000010cafbb48 CouchbaseLiteTests`-[ReplicatorTest_MessageEndpoint runP2PErrorScenario:withRecoverability:](self=0x0000612000028fc0, _cmd="runP2PErrorScenario:withRecoverability:", location=kCBLMockConnectionReceive, isRecoverable=YES) at ReplicatorTest+MessageEndPoint.m:194:5
    frame #11: 0x000000010cb0b702 CouchbaseLiteTests`-[ReplicatorTest_MessageEndpoint testMEP2PRecoverableFailureDuringReceive](self=0x0000612000028fc0, _cmd="testMEP2PRecoverableFailureDuringReceive") at ReplicatorTest+MessageEndPoint.m:401:5
    frame #12: 0x00007ff80f4b22bc CoreFoundation`__invoking___ + 140
    frame #13: 0x00007ff80f4b2163 CoreFoundation`-[NSInvocation invoke] + 305
    frame #14: 0x000000010172d4f1 XCTestCore`+[XCTFailableInvocation invokeStandardConventionInvocation:completion:] + 64
    frame #15: 0x000000010172d4af XCTestCore`__90+[XCTFailableInvocation invokeInvocation:withTestMethodConvention:lastObservedErrorIssue:]_block_invoke_3 + 23
    frame #16: 0x000000010172cf93 XCTestCore`__81+[XCTFailableInvocation invokeWithAsynchronousWait:lastObservedErrorIssue:block:]_block_invoke.11 + 71
    frame #17: 0x00000001016e5087 XCTestCore`+[XCTSwiftErrorObservation observeErrorsInBlock:] + 113
    frame #18: 0x000000010172ce28 XCTestCore`+[XCTFailableInvocation invokeWithAsynchronousWait:lastObservedErrorIssue:block:] + 435
    frame #19: 0x000000010172d267 XCTestCore`+[XCTFailableInvocation invokeInvocation:withTestMethodConvention:lastObservedErrorIssue:] + 205
    frame #20: 0x000000010172d558 XCTestCore`+[XCTFailableInvocation invokeInvocation:lastObservedErrorIssue:] + 64
    frame #21: 0x000000010171838c XCTestCore`__24-[XCTestCase invokeTest]_block_invoke_2 + 102
    frame #22: 0x00000001016f3b39 XCTestCore`-[XCTMemoryChecker _assertInvalidObjectsDeallocatedAfterScope:] + 65
    frame #23: 0x00000001017231bb XCTestCore`-[XCTestCase assertInvalidObjectsDeallocatedAfterScope:] + 116
    frame #24: 0x0000000101718303 XCTestCore`__24-[XCTestCase invokeTest]_block_invoke.277 + 179
    frame #25: 0x00000001016dd271 XCTestCore`-[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:] + 179
    frame #26: 0x0000000101717e53 XCTestCore`-[XCTestCase invokeTest] + 852
    frame #27: 0x000000010171977a XCTestCore`__26-[XCTestCase performTest:]_block_invoke.393 + 38
    frame #28: 0x00000001016dd271 XCTestCore`-[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:] + 179
    frame #29: 0x00000001017190fd XCTestCore`__26-[XCTestCase performTest:]_block_invoke.372 + 516
    frame #30: 0x00000001016fdeeb XCTestCore`+[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 218
    frame #31: 0x0000000101718d21 XCTestCore`-[XCTestCase performTest:] + 287
    frame #32: 0x00000001016cada7 XCTestCore`-[XCTest runTest] + 57
    frame #33: 0x0000000101701187 XCTestCore`-[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] + 151
    frame #34: 0x0000000101701007 XCTestCore`__27-[XCTestSuite performTest:]_block_invoke + 243
    frame #35: 0x000000010170091b XCTestCore`__59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
    frame #36: 0x00000001016fdeeb XCTestCore`+[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 218
    frame #37: 0x00000001017008d2 XCTestCore`-[XCTestSuite _performProtectedSectionForTest:testSection:] + 159
    frame #38: 0x0000000101700bc4 XCTestCore`-[XCTestSuite performTest:] + 219
    frame #39: 0x00000001016cada7 XCTestCore`-[XCTest runTest] + 57
    frame #40: 0x0000000101701187 XCTestCore`-[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] + 151
    frame #41: 0x0000000101701007 XCTestCore`__27-[XCTestSuite performTest:]_block_invoke + 243
    frame #42: 0x000000010170091b XCTestCore`__59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
    frame #43: 0x00000001016fdeeb XCTestCore`+[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 218
    frame #44: 0x00000001017008d2 XCTestCore`-[XCTestSuite _performProtectedSectionForTest:testSection:] + 159
    frame #45: 0x0000000101700bc4 XCTestCore`-[XCTestSuite performTest:] + 219
    frame #46: 0x00000001016cada7 XCTestCore`-[XCTest runTest] + 57
    frame #47: 0x0000000101701187 XCTestCore`-[XCTestSuite runTestBasedOnRepetitionPolicy:testRun:] + 151
    frame #48: 0x0000000101701007 XCTestCore`__27-[XCTestSuite performTest:]_block_invoke + 243
    frame #49: 0x000000010170091b XCTestCore`__59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke + 24
    frame #50: 0x00000001016fdeeb XCTestCore`+[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 218
    frame #51: 0x00000001017008d2 XCTestCore`-[XCTestSuite _performProtectedSectionForTest:testSection:] + 159
    frame #52: 0x0000000101700bc4 XCTestCore`-[XCTestSuite performTest:] + 219
    frame #53: 0x00000001016cada7 XCTestCore`-[XCTest runTest] + 57
    frame #54: 0x00000001016cc895 XCTestCore`__89-[XCTTestRunSession executeTestsWithIdentifiers:skippingTestsWithIdentifiers:completion:]_block_invoke + 115
    frame #55: 0x00000001016fdeeb XCTestCore`+[XCTContext runInContextForTestCase:markAsReportingBase:block:] + 218
    frame #56: 0x00000001016cc77d XCTestCore`-[XCTTestRunSession executeTestsWithIdentifiers:skippingTestsWithIdentifiers:completion:] + 271
    frame #57: 0x000000010173a812 XCTestCore`__72-[XCTExecutionWorker enqueueTestIdentifiersToRun:testIdentifiersToSkip:]_block_invoke_2 + 119
    frame #58: 0x000000010173a95a XCTestCore`-[XCTExecutionWorker runWithError:] + 112
    frame #59: 0x00000001016fb2ef XCTestCore`__25-[XCTestDriver _runTests]_block_invoke.318 + 61
    frame #60: 0x00000001016d5907 XCTestCore`-[XCTestObservationCenter _observeTestExecutionForBlock:] + 307
    frame #61: 0x00000001016faed0 XCTestCore`-[XCTestDriver _runTests] + 1455
    frame #62: 0x00000001016cb34c XCTestCore`_XCTestMain + 125
    frame #63: 0x0000000100006599 xctest`main + 355
    frame #64: 0x000000010001d51e dyld`start + 462
  thread #2, queue = 'Repl<-x-msg-conn:///0x60600032d440'
    frame #0: 0x00007ff80f3cdbd2 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007ff80f405e7e libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_wait + 76
    frame #2: 0x00007ff80f403cbb libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_slow + 205
    frame #3: 0x00007ff80f3686b9 libc++.1.dylib`std::__1::mutex::lock() + 9
    frame #4: 0x00000001107382bc CouchbaseLite`std::__1::unique_lock<std::__1::mutex>::unique_lock(this=0x000000010b61d6a0, __m=0x000060d00003a518) at __mutex_base:118:61
    frame #5: 0x000000011073205d CouchbaseLite`std::__1::unique_lock<std::__1::mutex>::unique_lock(this=0x000000010b61d6a0, __m=0x000060d00003a518) at __mutex_base:118:54
    frame #6: 0x00000001107334c1 CouchbaseLite`litecore::actor::Timer::Manager::unschedule(this=0x000060d00003a500, timer=0x000060700020a0e0, deleting=true) at Timer.cc:88:28
    frame #7: 0x00000001106a81f4 CouchbaseLite`litecore::actor::Timer::~Timer(this=0x000060700020a0e0) at Timer.hh:42:52
    frame #8: 0x00000001106a81b5 CouchbaseLite`litecore::actor::Timer::~Timer(this=0x000060700020a0e0) at Timer.hh:42:41
    frame #9: 0x000000011037194b CouchbaseLite`std::__1::default_delete<litecore::actor::Timer>::operator(this=0x00006190006507d8, __ptr=0x000060700020a0e0)(litecore::actor::Timer*) const at unique_ptr.h:57:5
    frame #10: 0x000000011034fc96 CouchbaseLite`std::__1::unique_ptr<litecore::actor::Timer, std::__1::default_delete<litecore::actor::Timer> >::reset(this=0x00006190006507d8, __p=0x0000000000000000) at unique_ptr.h:318:7
    frame #11: 0x0000000110350710 CouchbaseLite`litecore::repl::Checkpointer::stopAutosave(this=0x0000619000650710) at Checkpointer.cc:136:16
    frame #12: 0x00000001107bc8e0 CouchbaseLite`litecore::repl::Replicator::_onClose(this=0x0000619000650480, status=litecore::blip::Connection::CloseStatus @ 0x000000010b61d620, state=kClosed) at Replicator.cc:454:23
    frame #13: 0x00000001107ce933 CouchbaseLite`invocation function for block in void litecore::actor::Actor::enqueue<litecore::repl::Replicator, litecore::websocket::CloseStatus, litecore::blip::Connection::State>(.block_descriptor=0x0000608000192320)(litecore::websocket::CloseStatus, litecore::blip::Connection::State), litecore::websocket::CloseStatus, litecore::blip::Connection::State) at Actor.hh:111:42
    frame #14: 0x00000001102447ed CouchbaseLite`litecore::actor::GCDMailbox::safelyCall(this=0x00006190006504a8, block=0x00000001107ce6d0) block_pointer) const at GCDMailbox.cc:81:13
    frame #15: 0x0000000110244df0 CouchbaseLite`invocation function for block in litecore::actor::GCDMailbox::enqueue(.block_descriptor=0x000060400034bdd0) block_pointer) at GCDMailbox.cc:116:13
    frame #16: 0x000000010052c7cb libclang_rt.asan_osx_dynamic.dylib`__wrap_dispatch_async_block_invoke + 203
    frame #17: 0x00007ff80f24c0cc libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #18: 0x00007ff80f24d317 libdispatch.dylib`_dispatch_client_callout + 8
    frame #19: 0x00007ff80f253317 libdispatch.dylib`_dispatch_lane_serial_drain + 672
    frame #20: 0x00007ff80f253dfd libdispatch.dylib`_dispatch_lane_invoke + 366
    frame #21: 0x00007ff80f25deee libdispatch.dylib`_dispatch_workloop_worker_thread + 753
    frame #22: 0x00007ff80f404fd0 libsystem_pthread.dylib`_pthread_wqthread + 326
    frame #23: 0x00007ff80f403f57 libsystem_pthread.dylib`start_wqthread + 15
  thread #5
    frame #0: 0x00007ff80f3cd05a libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007ff80f405034 libsystem_pthread.dylib`_pthread_wqthread + 426
    frame #2: 0x00007ff80f403f57 libsystem_pthread.dylib`start_wqthread + 15
  thread #8, name = 'Timer (CBL)'
    frame #0: 0x00007ff80f3cdbd2 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007ff80f405e7e libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_wait + 76
    frame #2: 0x00007ff80f403cbb libsystem_pthread.dylib`_pthread_mutex_firstfit_lock_slow + 205
    frame #3: 0x00007ff80f408b07 libsystem_pthread.dylib`_pthread_cond_wait + 1401
    frame #4: 0x00007ff80f366d33 libc++.1.dylib`std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 93
    frame #5: 0x000000011073a3a7 CouchbaseLite`std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1l, 1000000000l> >(this=0x000060d00003a558, __lk=0x000000010d658020, __d=0x000000010d62cec0) at __mutex_base:463:9
    frame #6: 0x0000000110739669 CouchbaseLite`void std::__1::condition_variable::__do_timed_wait<std::__1::chrono::steady_clock>(this=0x000060d00003a558, __lk=0x000000010d658020, __tp=time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1, 1000000000> > > @ 0x000000010d62cea0) at __mutex_base:518:5
    frame #7: 0x0000000110732e03 CouchbaseLite`std::__1::cv_status std::__1::condition_variable::wait_until<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >(this=0x000060d00003a558, __lk=0x000000010d658020, __t=0x000000010d6580a0) at __mutex_base:421:5
    frame #8: 0x0000000110731f23 CouchbaseLite`litecore::actor::Timer::Manager::run(this=0x000060d00003a500) at Timer.cc:62:28
    frame #9: 0x0000000110737285 CouchbaseLite`litecore::actor::Timer::Manager::Manager(this=0x000060200000eaf8)::$_0::operator()() const at Timer.cc:28:24
    frame #10: 0x0000000110737205 CouchbaseLite`decltype(__f=0x000060200000eaf8)::$_0>(fp)()) std::__1::__invoke<litecore::actor::Timer::Manager::Manager()::$_0>(litecore::actor::Timer::Manager::Manager()::$_0&&) at type_traits:3918:1
    frame #11: 0x0000000110736fb5 CouchbaseLite`void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, litecore::actor::Timer::Manager::Manager()::$_0>(__t=size=2, (null)=__tuple_indices<> @ 0x000070000244cf08)::$_0>&, std::__1::__tuple_indices<>) at thread:287:5
    frame #12: 0x0000000110735ea0 CouchbaseLite`void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, litecore::actor::Timer::Manager::Manager()::$_0> >(__vp=0x000060200000eaf0) at thread:298:5
    frame #13: 0x00007ff80f4084e1 libsystem_pthread.dylib`_pthread_start + 125
    frame #14: 0x00007ff80f403f6b libsystem_pthread.dylib`thread_start + 15
  thread #9
    frame #0: 0x00007ff80f403f48 libsystem_pthread.dylib`start_wqthread
* thread #11, queue = 'BLIP[->x-msg-endpt:////_blipsync]', stop reason = Use of deallocated memory
    frame #0: 0x00000001005369f0 libclang_rt.asan_osx_dynamic.dylib`__asan::AsanDie()
    frame #1: 0x000000010054f61f libclang_rt.asan_osx_dynamic.dylib`__sanitizer::Die() + 175
    frame #2: 0x0000000100534cc3 libclang_rt.asan_osx_dynamic.dylib`__asan::ScopedInErrorReport::~ScopedInErrorReport() + 419
    frame #3: 0x00000001005345b6 libclang_rt.asan_osx_dynamic.dylib`__asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool) + 1462
    frame #4: 0x0000000100534fe8 libclang_rt.asan_osx_dynamic.dylib`__asan_report_load1 + 40
  * frame #5: 0x0000000110735549 CouchbaseLite`litecore::actor::Timer::state std::__1::__cxx_atomic_load<litecore::actor::Timer::state>(__a=0x00006070001e5898, __order=memory_order_seq_cst) at atomic:1010:12
    frame #6: 0x000000011073541b CouchbaseLite`std::__1::__atomic_base<litecore::actor::Timer::state, false>::load(this=0x00006070001e5898, __m=memory_order_seq_cst) const at atomic:1643:17
    frame #7: 0x0000000110732f8a CouchbaseLite`std::__1::__atomic_base<litecore::actor::Timer::state, false>::operator litecore::actor::Timer::state(this=0x00006070001e5898) const at atomic:1647:53
    frame #8: 0x0000000110733ed2 CouchbaseLite`litecore::actor::Timer::Manager::setFireTime(this=0x000060d00003a500, timer=0x00006070001e5860, when=std::__1::chrono::steady_clock::time_point @ 0x0000000112e0ef20, earlier=false) at Timer.cc:109:13
    frame #9: 0x00000001106a9896 CouchbaseLite`litecore::actor::Timer::fireAfter(this=0x00006070001e5860, d=(__rep_ = 5000000000)) at Timer.hh:60:52
    frame #10: 0x00000001106a95ec CouchbaseLite`void litecore::actor::Timer::fireAfter<long long, std::__1::ratio<1l, 1l> >(this=0x00006070001e5860, dur=0x0000000112d00420) at Timer.hh:69:20
    frame #11: 0x00000001102b3cc5 CouchbaseLite`litecore::websocket::WebSocketImpl::startResponseTimer(this=0x00006150000e2e80, timeoutSecs=(__rep_ = 5)) at WebSocketImpl.cc:392:29
    frame #12: 0x00000001102bb9e1 CouchbaseLite`litecore::websocket::WebSocketImpl::callRequestClose(this=0x00006150000e2e80, status=1000, message=slice @ 0x0000000112e0e520) at WebSocketImpl.cc:459:13
    frame #13: 0x00000001102be66d CouchbaseLite`litecore::websocket::WebSocketImpl::close(this=0x00006150000e2e80, status=1000, message=slice @ 0x0000000112e0e420) at WebSocketImpl.cc:511:21
    frame #14: 0x000000011072f736 CouchbaseLite`litecore::blip::BLIPIO::_close(this=0x00006180000d1c80, closeCode=kCodeNormal, message=alloc_slice @ 0x0000000112cff8a0) at BLIPConnection.cc:217:29
    frame #15: 0x000000011072fa12 CouchbaseLite`invocation function for block in void litecore::actor::Actor::enqueue<litecore::blip::BLIPIO, litecore::websocket::CloseCode, fleece::alloc_slice>(.block_descriptor=0x000060700020af50)(litecore::websocket::CloseCode, fleece::alloc_slice), litecore::websocket::CloseCode, fleece::alloc_slice) at Actor.hh:111:42
    frame #16: 0x00000001102447ed CouchbaseLite`litecore::actor::GCDMailbox::safelyCall(this=0x00006180000d1ca8, block=0x000000011072f7b0) block_pointer) const at GCDMailbox.cc:81:13
    frame #17: 0x0000000110244df0 CouchbaseLite`invocation function for block in litecore::actor::GCDMailbox::enqueue(.block_descriptor=0x000060400034b7d0) block_pointer) at GCDMailbox.cc:116:13
    frame #18: 0x000000010052c7cb libclang_rt.asan_osx_dynamic.dylib`__wrap_dispatch_async_block_invoke + 203
    frame #19: 0x00007ff80f24c0cc libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #20: 0x00007ff80f24d317 libdispatch.dylib`_dispatch_client_callout + 8
    frame #21: 0x00007ff80f253317 libdispatch.dylib`_dispatch_lane_serial_drain + 672
    frame #22: 0x00007ff80f253dfd libdispatch.dylib`_dispatch_lane_invoke + 366
    frame #23: 0x00007ff80f25deee libdispatch.dylib`_dispatch_workloop_worker_thread + 753
    frame #24: 0x00007ff80f404fd0 libsystem_pthread.dylib`_pthread_wqthread + 326
    frame #25: 0x00007ff80f403f57 libsystem_pthread.dylib`start_wqthread + 15
  thread #12
    frame #0: 0x00007ff80f3cba9a libsystem_kernel.dylib`syscall_thread_switch + 10
    frame #1: 0x00007ff80f42052f libsystem_platform.dylib`_OSSpinLockLockYield + 80
    frame #2: 0x000000010054ef9c libclang_rt.asan_osx_dynamic.dylib`__sanitizer::ThreadRegistry::FinishThread(unsigned int) + 28
    frame #3: 0x00000001005387f0 libclang_rt.asan_osx_dynamic.dylib`__asan::AsanThread::Destroy() + 128
    frame #4: 0x00007ff80f40651c libsystem_pthread.dylib`_pthread_tsd_cleanup + 412
    frame #5: 0x00007ff80f408b89 libsystem_pthread.dylib`_pthread_exit + 70
    frame #6: 0x00007ff80f406310 libsystem_pthread.dylib`_pthread_wqthread_exit + 79
    frame #7: 0x00007ff80f405062 libsystem_pthread.dylib`_pthread_wqthread + 472
    frame #8: 0x00007ff80f403f57 libsystem_pthread.dylib`start_wqthread + 15
  thread #13
    frame #0: 0x00007ff80f3cd05a libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007ff80f405034 libsystem_pthread.dylib`_pthread_wqthread + 426
    frame #2: 0x00007ff80f403f57 libsystem_pthread.dylib`start_wqthread + 15
  thread #14
    frame #0: 0x0000000000000000
(lldb)