FATAL:lock_impl_posix.cc(81)] Check failed: rv == 0 (16 vs. 0). Device or resource busy

agent:2020/10/26 19:48:34 build.go:379: PASS   : tst_Accessibility::roles(ax::mojom::Role::kMath)
agent:2020/10/26 19:48:38 build.go:379: [24587:24603:1026/194834.972246:FATAL:lock_impl_posix.cc(81)] Check failed: rv == 0 (16 vs. 0). Device or resource busy. 
agent:2020/10/26 19:48:38 build.go:379: #0 0x7f78ce3a3995 base::debug::CollectStackTrace()
agent:2020/10/26 19:48:38 build.go:379: #1 0x7f78ce18c01d base::debug::StackTrace::StackTrace()
agent:2020/10/26 19:48:38 build.go:379: #2 0x7f78ce18bfd4 base::debug::StackTrace::StackTrace()
agent:2020/10/26 19:48:38 build.go:379: #3 0x7f78ce1c33f6 logging::LogMessage::~LogMessage()
agent:2020/10/26 19:48:38 build.go:379: #4 0x7f78ce3cf6df base::internal::LockImpl::~LockImpl()
agent:2020/10/26 19:48:38 build.go:379: #5 0x7f78ce27a3ac base::Lock::~Lock()
agent:2020/10/26 19:48:38 build.go:379: #6 0x7f78caa9c70a mojo::core::Watch::~Watch()
agent:2020/10/26 19:48:38 build.go:379: #7 0x7f78caa9521f base::RefCountedThreadSafe<>::DeleteInternal<>()
agent:2020/10/26 19:48:38 build.go:379: #8 0x7f78caa94b03 base::DefaultRefCountedThreadSafeTraits<>::Destruct()
agent:2020/10/26 19:48:38 build.go:379: #9 0x7f78caa9437c base::RefCountedThreadSafe<>::Release()
agent:2020/10/26 19:48:38 build.go:379: #10 0x7f78caa93bdc scoped_refptr<>::Release()
agent:2020/10/26 19:48:38 build.go:379: #11 0x7f78caa9344d scoped_refptr<>::~scoped_refptr()
agent:2020/10/26 19:48:38 build.go:379: #12 0x7f78caa92e76 mojo::core::RequestContext::WatchNotifyFinalizer::~WatchNotifyFinalizer()
agent:2020/10/26 19:48:38 build.go:379: #13 0x7f78caa9504e __gnu_cxx::new_allocator<>::destroy<>()
agent:2020/10/26 19:48:38 build.go:379: #14 0x7f78caa94960 _ZNSt16allocator_traitsIN4base14StackAllocatorIN4mojo4core14RequestContext20WatchNotifyFinalizerELm8EEEE10_S_destroyIS6_S5_EEDTcldtfp_7destroyfp0_EERT_PT0_i
agent:2020/10/26 19:48:38 build.go:379: #15 0x7f78caa940eb std::allocator_traits<>::destroy<>()
agent:2020/10/26 19:48:38 build.go:379: #16 0x7f78caa938e4 std::_Destroy<>()
agent:2020/10/26 19:48:38 build.go:379: #17 0x7f78caa93024 std::vector<>::~vector()
agent:2020/10/26 19:48:38 build.go:379: #18 0x7f78caa92ed8 base::StackContainer<>::~StackContainer()
agent:2020/10/26 19:48:38 build.go:379: #19 0x7f78caa92f06 base::StackVector<>::~StackVector()
agent:2020/10/26 19:48:38 build.go:379: #20 0x7f78caa92a45 mojo::core::RequestContext::~RequestContext()
agent:2020/10/26 19:48:38 build.go:379: #21 0x7f78caa71835 mojo::core::NodeChannel::OnChannelError()
agent:2020/10/26 19:48:38 build.go:379: #22 0x7f78caa4cddc mojo::core::Channel::OnError()
agent:2020/10/26 19:48:38 build.go:379: #23 0x7f78caaaa1dd mojo::core::(anonymous namespace)::ChannelPosix::OnFileCanReadWithoutBlocking()
agent:2020/10/26 19:48:38 build.go:379: #24 0x7f78ce401098 base::MessagePumpLibevent::FdWatchController::OnFileCanReadWithoutBlocking()
agent:2020/10/26 19:48:38 build.go:379: #25 0x7f78ce402c9f base::MessagePumpLibevent::OnLibeventNotification()
agent:2020/10/26 19:48:38 build.go:379: #26 0x7f78cf150931 event_process_active
agent:2020/10/26 19:48:38 build.go:379: #27 0x7f78cf150c58 event_base_loop
agent:2020/10/26 19:48:38 build.go:379: #28 0x7f78ce4020cb base::MessagePumpLibevent::Run()
agent:2020/10/26 19:48:38 build.go:379: #29 0x7f78ce2cd255 base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run()
agent:2020/10/26 19:48:38 build.go:379: #30 0x7f78ce239052 base::RunLoop::Run()
agent:2020/10/26 19:48:38 build.go:379: #31 0x7f78ce3296ff base::Thread::Run()
agent:2020/10/26 19:48:38 build.go:379: #32 0x7f78d2cc58bd content::BrowserProcessSubThread::IOThreadRun()
agent:2020/10/26 19:48:38 build.go:379: #33 0x7f78d2cc5695 content::BrowserProcessSubThread::Run()
agent:2020/10/26 19:48:38 build.go:379: #34 0x7f78ce329d14 base::Thread::ThreadMain()
agent:2020/10/26 19:48:38 build.go:379: #35 0x7f78ce3d76b5 base::(anonymous namespace)::ThreadFunc()
agent:2020/10/26 19:48:38 build.go:379: #36 0x7f78c1ef0569 start_thread
agent:2020/10/26 19:48:38 build.go:379: #37 0x7f78c134d9ef __GI___clone
agent:2020/10/26 19:48:38 build.go:379: Received signal 6
agent:2020/10/26 19:48:38 build.go:379: #0 0x7f78ce3a3995 base::debug::CollectStackTrace()
agent:2020/10/26 19:48:38 build.go:379: #1 0x7f78ce18c01d base::debug::StackTrace::StackTrace()
agent:2020/10/26 19:48:38 build.go:379: #2 0x7f78ce18bfd4 base::debug::StackTrace::StackTrace()
agent:2020/10/26 19:48:38 build.go:379: #3 0x7f78ce3a2559 base::debug::(anonymous namespace)::StackDumpSignalHandler()
agent:2020/10/26 19:48:38 build.go:379: #4 0x7f78c1efb300 (/lib64/libpthread-2.26.so+0x122ff)
agent:2020/10/26 19:48:38 build.go:379: #5 0x7f78c128b160 __GI_raise
agent:2020/10/26 19:48:38 build.go:379: #6 0x7f78c128c741 __GI_abort
agent:2020/10/26 19:48:38 build.go:379: #7 0x7f78ce3a1cc0 base::debug::(anonymous namespace)::DebugBreak()
agent:2020/10/26 19:48:38 build.go:379: #8 0x7f78ce3a1cd9 base::debug::BreakDebugger()
agent:2020/10/26 19:48:38 build.go:379: #9 0x7f78ce1c3ad9 logging::LogMessage::~LogMessage()
agent:2020/10/26 19:48:39 build.go:379: #10 0x7f78ce3cf6df base::internal::LockImpl::~LockImpl()
agent:2020/10/26 19:48:39 build.go:379: #11 0x7f78ce27a3ac base::Lock::~Lock()
agent:2020/10/26 19:48:39 build.go:379: #12 0x7f78caa9c70a mojo::core::Watch::~Watch()
agent:2020/10/26 19:48:39 build.go:379: #13 0x7f78caa9521f base::RefCountedThreadSafe<>::DeleteInternal<>()
agent:2020/10/26 19:48:39 build.go:379: #14 0x7f78caa94b03 base::DefaultRefCountedThreadSafeTraits<>::Destruct()
agent:2020/10/26 19:48:39 build.go:379: #15 0x7f78caa9437c base::RefCountedThreadSafe<>::Release()
agent:2020/10/26 19:48:39 build.go:379: #16 0x7f78caa93bdc scoped_refptr<>::Release()
agent:2020/10/26 19:48:39 build.go:379: #17 0x7f78caa9344d scoped_refptr<>::~scoped_refptr()
agent:2020/10/26 19:48:39 build.go:379: #18 0x7f78caa92e76 mojo::core::RequestContext::WatchNotifyFinalizer::~WatchNotifyFinalizer()
agent:2020/10/26 19:48:39 build.go:379: #19 0x7f78caa9504e __gnu_cxx::new_allocator<>::destroy<>()
agent:2020/10/26 19:48:39 build.go:379: #20 0x7f78caa94960 FAIL!  : tst_Accessibility::roles(ax::mojom::Role::kMenu) 'spyFinished.wait()' returned FALSE. ()
agent:2020/10/26 19:48:39 build.go:379:    Loc: [tst_accessibility.cpp(532)]
agent:2020/10/26 19:48:39 build.go:379: _ZNSt16allocator_traitsIN4base14StackAllocatorIN4mojo4core14RequestContext20WatchNotifyFinalizerELm8EEEE10_S_destroyIS6_S5_EEDTcldtfp_7destroyfp0_EERT_PT0_i
agent:2020/10/26 19:48:40 build.go:379: #21 0x7f78caa940eb std::allocator_traits<>::destroy<>()
agent:2020/10/26 19:48:40 build.go:379: #22 0x7f78caa938e4 std::_Destroy<>()
agent:2020/10/26 19:48:40 build.go:379: #23 0x7f78caa93024 std::vector<>::~vector()
agent:2020/10/26 19:48:40 build.go:379: #24 0x7f78caa92ed8 base::StackContainer<>::~StackContainer()
agent:2020/10/26 19:48:40 build.go:379: #25 0x7f78caa92f06 base::StackVector<>::~StackVector()
agent:2020/10/26 19:48:40 build.go:379: #26 0x7f78caa92a45 mojo::core::RequestContext::~RequestContext()
agent:2020/10/26 19:48:40 build.go:379: #27 0x7f78caa71835 mojo::core::NodeChannel::OnChannelError()
agent:2020/10/26 19:48:40 build.go:379: #28 0x7f78caa4cddc mojo::core::Channel::OnError()
agent:2020/10/26 19:48:40 build.go:379: #29 0x7f78caaaa1dd mojo::core::(anonymous namespace)::ChannelPosix::OnFileCanReadWithoutBlocking()
agent:2020/10/26 19:48:40 build.go:379: #30 0x7f78ce401098 base::MessagePumpLibevent::FdWatchController::OnFileCanReadWithoutBlocking()
agent:2020/10/26 19:48:40 build.go:379: #31 0x7f78ce402c9f base::MessagePumpLibevent::OnLibeventNotification()
agent:2020/10/26 19:48:40 build.go:379: #32 0x7f78cf150931 event_process_active
agent:2020/10/26 19:48:40 build.go:379: #33 0x7f78cf150c58 event_base_loop
agent:2020/10/26 19:48:41 build.go:379: #34 0x7f78ce4020cb base::MessagePumpLibevent::Run()
agent:2020/10/26 19:48:41 build.go:379: #35 0x7f78ce2cd255 base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run()
agent:2020/10/26 19:48:41 build.go:379: #36 0x7f78ce239052 base::RunLoop::Run()
agent:2020/10/26 19:48:41 build.go:379: #37 0x7f78ce3296ff base::Thread::Run()
agent:2020/10/26 19:48:41 build.go:379: #38 0x7f78d2cc58bd content::BrowserProcessSubThread::IOThreadRun()
agent:2020/10/26 19:48:41 build.go:379: #39 0x7f78d2cc5695 content::BrowserProcessSubThread::Run()
agent:2020/10/26 19:48:41 build.go:379: #40 0x7f78ce329d14 base::Thread::ThreadMain()
agent:2020/10/26 19:48:41 build.go:379: #41 0x7f78ce3d76b5 base::(anonymous namespace)::ThreadFunc()
agent:2020/10/26 19:48:41 build.go:379: #42 0x7f78c1ef0569 start_thread
agent:2020/10/26 19:48:41 build.go:379: #43 0x7f78c134d9ef __GI___clone
agent:2020/10/26 19:48:41 build.go:379:   r8: 0000000000000000  r9: 00007f78a134c880 r10: 0000000000000008 r11: 0000000000000246
agent:2020/10/26 19:48:41 build.go:379:  r12: 000000000000095d r13: 00007fff9af43daf r14: 00000000013bf6a0 r15: 00007fff9af43e70
agent:2020/10/26 19:48:41 build.go:379:   di: 0000000000000002  si: 00007f78a134c880  bp: 00007f78a134cad0  bx: 0000000000000006
agent:2020/10/26 19:48:41 build.go:379:   dx: 0000000000000000  ax: 0000000000000000  cx: 00007f78c128b160  sp: 00007f78a134c880
agent:2020/10/26 19:48:41 build.go:379:   ip: 00007f78c128b160 efl: 0000000000000246 cgf: 002b000000000033 erf: 0000000000000000
agent:2020/10/26 19:48:41 build.go:379:  trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000
agent:2020/10/26 19:48:41 build.go:379: [end of stack trace]
agent:2020/10/26 19:48:41 build.go:379: Calling _exit(1). Core file will not be generated.
agent:2020/10/26 19:48:41 build.go:379: make: *** [Makefile:404: check] Error 1
agent:2020/10/26 19:48:41 build.go:430: Process finished with error: exit status 2