Crashed: NSOperationQueue 0x115fc58f0 (QOS: UNSPECIFIED)
0  libobjc.A.dylib                0x1b426d1a0 objc_msgSend + 32
1  Foundation                     0x1b48f5b28 NSKeyValuePopPendingNotificationLocal + 60
2  Foundation                     0x1b48f5aa4 NSKeyValueDidChange.llvm.6079828102272951676 + 364
3  Foundation                     0x1b48f54d8 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:] + 624
4  Foundation                     0x1b4844dbc -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 68
5  Foundation                     0x1b48f1078 _NSSetLongLongValueAndNotify + 284
6  CFNetwork                      0x1b78ee8d4 _CFNetworkHTTPConnectionCacheSetLimit + 205504
7  Foundation                     0x1b490d61c __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
8  Foundation                     0x1b48173d8 -[NSBlockOperation main] + 100
9  Foundation                     0x1b490f8a4 __NSOPERATION_IS_INVOKING_MAIN__ + 20
10 Foundation                     0x1b4817070 -[NSOperation start] + 732
11 Foundation                     0x1b491029c __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 20
12 Foundation                     0x1b490fd68 __NSOQSchedule_f + 180
13 libdispatch.dylib              0x1b41c881c _dispatch_block_async_invoke2 + 104
14 libdispatch.dylib              0x1b4216184 _dispatch_client_callout + 16
15 libdispatch.dylib              0x1b41bea9c _dispatch_continuation_pop$VARIANT$mp + 412
16 libdispatch.dylib              0x1b41be1f0 _dispatch_async_redirect_invoke + 600
17 libdispatch.dylib              0x1b41cafd0 _dispatch_root_queue_drain + 376
18 libdispatch.dylib              0x1b41cb79c _dispatch_worker_thread2 + 128
19 libsystem_pthread.dylib        0x1b4265f64 _pthread_wqthread + 212
20 libsystem_pthread.dylib        0x1b4268ae0 start_wqthread + 8