Process:               net_unittests [22130]
Path:                  /Users/*/Library/Developer/CoreSimulator/Devices/162B9FB6-23E4-4148-9C67-04E045F60CF3/data/Containers/Bundle/Application/25E87992-38F0-40F8-9476-723463D73ED2/net_unittests.app/net_unittests
Identifier:            net_unittests
Version:               1.0
Code Type:             X86-64 (Native)
Parent Process:        launchd_sim [22023]
Responsible:           net_unittests [22130]
User ID:               500
Date/Time:             2017-08-24 14:33:16.938 -0700
OS Version:            Mac OS X 10.12.5 (16F73)
Report Version:        12
Anonymous UUID:        5682A0FC-846B-C3A7-D51F-21DD0BF34BF9
Time Awake Since Boot: 11000 seconds
System Integrity Protection: disabled
Crashed Thread:        0  Dispatch queue: com.apple.main-thread
Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY
Application Specific Information:
[22130] stack overflow
CoreSimulator 303.8 - Device: iPhone 6s - Runtime: iOS 10.0 (14A345) - DeviceType: iPhone 6s
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x0000000119a35d42 __pthread_kill + 10
1   libsystem_pthread.dylib       	0x0000000119a6d457 pthread_kill + 90
2   libsystem_c.dylib             	0x00000001197b0092 __abort + 140
3   libsystem_c.dylib             	0x00000001197b0957 __stack_chk_fail + 205
4   com.apple.CoreFoundation      	0x0000000111f2514d __CFRunLoopRun + 2653
5   com.apple.CoreFoundation      	0x0000000111f24494 CFRunLoopRunSpecific + 420
6   com.apple.Foundation          	0x0000000112cd0080 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 274
7   com.apple.Foundation          	0x0000000112d57a21 -[NSRunLoop(NSRunLoop) runUntilDate:] + 78
8   org.chromium.gtest.generic-unit-test	0x000000010c52d891 (anonymous namespace)::IOSRunLoopListener::OnTestEnd(testing::TestInfo const&) + 129
9   org.chromium.gtest.generic-unit-test	0x000000010af38535 testing::internal::TestEventRepeater::OnTestEnd(testing::TestInfo const&) + 133
10  org.chromium.gtest.generic-unit-test	0x000000010af32db7 testing::TestInfo::Run() + 343
11  org.chromium.gtest.generic-unit-test	0x000000010af33fdc testing::TestCase::Run() + 236
12  org.chromium.gtest.generic-unit-test	0x000000010af40e89 testing::internal::UnitTestImpl::RunAllTests() + 873
13  org.chromium.gtest.generic-unit-test	0x000000010af585fe bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) + 126
14  org.chromium.gtest.generic-unit-test	0x000000010af40aa2 bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) + 114
15  org.chromium.gtest.generic-unit-test	0x000000010af4099e testing::UnitTest::Run() + 350
16  org.chromium.gtest.generic-unit-test	0x000000010c53af51 RUN_ALL_TESTS() + 17
17  org.chromium.gtest.generic-unit-test	0x000000010c53a3cf base::TestSuite::Run() + 319
18  org.chromium.gtest.generic-unit-test	0x000000010c53e561 -[ChromeUnitTestDelegate runTests] + 33
19  com.apple.Foundation          	0x0000000112d32f48 __NSFireDelayedPerform + 417
20  com.apple.CoreFoundation      	0x0000000111f2d964 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
21  com.apple.CoreFoundation      	0x0000000111f2d5f3 __CFRunLoopDoTimer + 1075
22  com.apple.CoreFoundation      	0x0000000111f2d17a __CFRunLoopDoTimers + 250
23  com.apple.CoreFoundation      	0x0000000111f24f01 __CFRunLoopRun + 2065
24  com.apple.CoreFoundation      	0x0000000111f24494 CFRunLoopRunSpecific + 420
25  com.apple.GraphicsServices    	0x00000001168e9a6f GSEventRunModal + 161
26  com.apple.UIKit               	0x0000000113420f34 UIApplicationMain + 159
27  org.chromium.gtest.generic-unit-test	0x000000010c53e862 base::RunTestsFromIOSApp() + 66
28  org.chromium.gtest.generic-unit-test	0x000000010c53a2af base::TestSuite::Run() + 31
29  org.chromium.gtest.generic-unit-test	0x000000010ad32a7d int base::internal::FunctorTraits<int (base::TestSuite::*)(), void>::Invoke<NetTestSuite*>(int (base::TestSuite::*)(), NetTestSuite*&&) + 125
30  org.chromium.gtest.generic-unit-test	0x000000010ad329c4 int base::internal::InvokeHelper<false, int>::MakeItSo<int (base::TestSuite::* const&)(), NetTestSuite*>(int (base::TestSuite::* const&&&)(), NetTestSuite*&&) + 68
31  org.chromium.gtest.generic-unit-test	0x000000010ad32975 int base::internal::Invoker<base::internal::BindState<int (base::TestSuite::*)(), base::internal::UnretainedWrapper<NetTestSuite> >, int ()>::RunImpl<int (base::TestSuite::* const&)(), std::__1::tuple<base::internal::UnretainedWrapper<NetTestSuite> > const&, 0ul>(int (base::TestSuite::* const&&&)(), std::__1::tuple<base::internal::UnretainedWrapper<NetTestSuite> > const&&&, std::__1::integer_sequence<unsigned long, 0ul>) + 85
32  org.chromium.gtest.generic-unit-test	0x000000010ad328bc base::internal::Invoker<base::internal::BindState<int (base::TestSuite::*)(), base::internal::UnretainedWrapper<NetTestSuite> >, int ()>::Run(base::internal::BindStateBase*) + 44
33  org.chromium.gtest.generic-unit-test	0x000000010b3b349d base::Callback<int (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1>::Run() const + 61
34  org.chromium.gtest.generic-unit-test	0x000000010c540900 base::LaunchUnitTests(int, char**, base::Callback<int (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&) + 976
35  org.chromium.gtest.generic-unit-test	0x000000010ad32554 main + 260
36  libdyld.dylib                 	0x000000011970768d start + 1

Assigning to sheriff for investigation

Can you check what test is failing?