crash log for renderer (pid <unknown>):
STDOUT: #CRASHED - renderer
STDERR: [5372:5344:0525/231101:879875:FATAL:atomicstring.cpp(409)] Check failed: iterator != atomicStrings().end(). 
STDERR: Backtrace:
STDERR: 	base::debug::StackTrace::StackTrace [0x024FAE87+23]
STDERR: 	logging::LogMessage::~LogMessage [0x024972E1+49]
STDERR: 	WTF::AtomicString::remove [0x00D688FA+116]
STDERR: 	WTF::StringImpl::`scalar deleting destructor' [0x00D6B6D3+18]
STDERR: 	WTF::StringImpl::destroyIfNotStatic [0x00D6BFCA+17]
STDERR: 	blink::Resource::~Resource [0x01894F87+146]
STDERR: 	blink::HeapObjectHeader::finalize [0x01487587+47]
STDERR: 	blink::NormalPage::sweep [0x01488095+125]
STDERR: 	blink::BaseArena::sweepUnsweptPage [0x0148814A+42]
STDERR: 	blink::ThreadState::leaveSafePoint [0x0148A47C+49]
STDERR: 	blink::ThreadHeap::collectGarbage [0x01485A00+876]
STDERR: 	blink::V8GCController::gcEpilogue [0x014F7A4A+483]
STDERR: 	v8::internal::Heap::CallGCEpilogueCallbacks [0x011C4C59+73]
STDERR: 	v8::internal::Heap::PerformGarbageCollection [0x011CFD14+1780]
STDERR: 	v8::internal::Heap::CollectGarbage [0x011C55BE+558]
STDERR: 	v8::internal::Heap::CollectAllGarbage [0x011C537C+92]
STDERR: 	v8::Isolate::RequestGarbageCollectionForTesting [0x00FB297C+108]
STDERR: 	test_runner::GCController::Collect [0x023179A3+15]
STDERR: 	?Run@?$Invoker@U?$IndexSequence@$S@base@@U?$BindState@V?$RunnableAdapter@P8EventSenderBindings@test_runner@@AEXABV?$vector@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V?$allocator@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@ [0x02315357+17]
STDERR: 	gin::internal::Invoker<gin::internal::IndicesHolder<0,1>,test_runner::EventSenderBindings *,std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char>  [0x02326AEA+23]
STDERR: 	gin::internal::Dispatcher<void __cdecl(test_runner::GCController *,gin::Arguments const &)>::DispatchToCallback [0x02317A7C+182]
STDERR: 	v8::internal::FunctionCallbackArguments::Call [0x00F967D0+160]
STDERR: 	v8::internal::Builtins::HandleApiCallAsFunction [0x00FF9387+1719]
STDERR: 	v8::internal::Builtins::BooleanPrototypeValueOf [0x00FE95AF+28415]
STDERR: 
STDERR: Backtrace:
STDERR: 	base::debug::BreakDebugger [0x025024A9+9]
STDERR: 	logging::LogMessage::~LogMessage [0x0249749F+495]
STDERR: 	WTF::AtomicString::remove [0x00D688FA+116]
STDERR: 	WTF::StringImpl::`scalar deleting destructor' [0x00D6B6D3+18]
STDERR: 	WTF::StringImpl::destroyIfNotStatic [0x00D6BFCA+17]
STDERR: 	blink::KURL::~KURL [0x00EDE8CF+32]
STDERR: 	blink::Resource::~Resource [0x01894F87+146]
STDERR: 	blink::RawResource::`vector deleting destructor' [0x01893960+8]
STDERR: 	blink::FinalizerTraitImpl<blink::ColorChooserUIController,1>::finalize [0x0167E18B+24]
STDERR: 	blink::HeapObjectHeader::finalize [0x01487587+47]
STDERR: 	blink::NormalPage::sweep [0x01488095+125]
STDERR: 	blink::BaseArena::sweepUnsweptPage [0x0148814A+42]
STDERR: 	blink::BaseArena::completeSweep [0x014873F1+29]
STDERR: 	blink::ThreadState::completeSweep [0x01489C13+153]
STDERR: 	blink::ThreadState::leaveSafePoint [0x0148A47C+49]
STDERR: 	blink::ThreadHeap::collectGarbage [0x01485A00+876]
STDERR: 	blink::V8GCController::gcEpilogue [0x014F7A4A+483]
STDERR: 	v8::internal::Heap::CallGCEpilogueCallbacks [0x011C4C59+73]
STDERR: 	v8::internal::Heap::PerformGarbageCollection [0x011CFD14+1780]
STDERR: 	v8::internal::Heap::CollectGarbage [0x011C55BE+558]
STDERR: 	v8::internal::Heap::CollectAllGarbage [0x011C537C+92]
STDERR: 	v8::Isolate::RequestGarbageCollectionForTesting [0x00FB297C+108]
STDERR: 	test_runner::GCController::Collect [0x023179A3+15]
STDERR: 	?Run@?$Invoker@U?$IndexSequence@$S@base@@U?$BindState@V?$RunnableAdapter@P8EventSenderBindings@test_runner@@AEXABV?$vector@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V?$allocator@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@ [0x02315357+17]
STDERR: 	gin::internal::Invoker<gin::internal::IndicesHolder<0,1>,test_runner::EventSenderBindings *,std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char>  [0x02326AEA+23]
STDERR: 	gin::internal::Dispatcher<void __cdecl(test_runner::GCController *,gin::Arguments const &)>::DispatchToCallback [0x02317A7C+182]
STDERR: 	v8::internal::FunctionCallbackArguments::Call [0x00F967D0+160]
STDERR: 	v8::internal::Builtins::HandleApiCallAsFunction [0x00FF9387+1719]
STDERR: 	v8::internal::Builtins::BooleanPrototypeValueOf [0x00FE95AF+28415]
STDERR: 	(No symbol) [0x0C70A4FE]
STDERR: 	(No symbol) [0x3B927F6C]
STDERR: 	(No symbol) [0x3B92BDE1]
STDERR: 	(No symbol) [0x0C73979E]
STDERR: 	(No symbol) [0x0C7231E3]
STDERR: 	v8::internal::StackGuard::ThreadLocal::Initialize [0x01198E33+371]
STDERR: 	v8::internal::Execution::Call [0x01198680+304]
STDERR: 	v8::Function::Call [0x00F9CF44+468]
STDERR: 	blink::V8ScriptRunner::callFunction [0x014FF93F+427]
STDERR: 	blink::ScriptController::callFunction [0x014E1EEA+29]
STDERR: 	blink::ScriptController::callFunction [0x014E1EC2+55]
STDERR: 	blink::V8EventListener::callListenerFunction [0x014F6B01+173]
STDERR: 	blink::V8AbstractEventListener::invokeEventHandler [0x014F1CD1+216]
STDERR: 	blink::V8AbstractEventListener::handleEvent [0x014F1B5B+98]
STDERR: 	blink::V8AbstractEventListener::handleEvent [0x014F1AE9+98]
STDERR: 	blink::EventTarget::fireEventListeners [0x016D8295+790]
STDERR: 	blink::EventTarget::fireEventListeners [0x016D83CB+109]
STDERR: 	blink::EventTarget::dispatchEventInternal [0x016D7DE8+36]
STDERR: 	blink::EventTarget::dispatchEvent [0x016D7D35+19]
STDERR: 	blink::InProcessWorkerMessagingProxy::postMessageToWorkerObject [0x01981D6E+107]
STDERR: 	??$callInternal@$0A@$00$01$$Z$$V@?$PartBoundFunctionImpl@$0A@V?$tuple@$$QAPAVInProcessWorkerMessagingProxy@blink@@$$QAV?$PassRefPtr@VSerializedScriptValue@blink@@@WTF@@$$QAV?$PassedWrapper@V?$OwnPtr@V?$Vector@V?$OwnPtr@VWebMessagePortChannel@blink@@@WTF@@ [0x0198253E+43]
STDERR: 	??R?$PartBoundFunctionImpl@$0A@V?$tuple@$$QAPAVInProcessWorkerMessagingProxy@blink@@$$QAV?$PassRefPtr@VSerializedScriptValue@blink@@@WTF@@$$QAV?$PassedWrapper@V?$OwnPtr@V?$Vector@V?$OwnPtr@VWebMessagePortChannel@blink@@@WTF@@$00VPartitionAllocator@2@@WTF@ [0x019829E6+13]
STDERR: 	blink::internal::runCallClosureTask<1> [0x014A1DBB+11]
STDERR: 	blink::internal::CallClosureTask<void __cdecl(void),1>::performTask [0x014961D8+23]
STDERR: 	blink::MainThreadTaskRunner::perform [0x0169FBEE+110]
STDERR: 	WTF::FunctionWrapper<void (__thiscall blink::MainThreadTaskRunner::*)(std::unique_ptr<blink::ExecutionContextTask,std::default_delete<blink::ExecutionContextTask> >,bool)>::operator()<std::unique_ptr<blink::ExecutionContextTask,std::default_delete<blink:: [0x0169F746+49]
STDERR: 	??$callInternal@$0A@$00$01$$Z$$V@?$PartBoundFunctionImpl@$0A@V?$tuple@$$QAV?$CrossThreadWeakPersistentThisPointer@VMainThreadTaskRunner@blink@@@blink@@$$QAV?$PassedWrapper@V?$unique_ptr@VExecutionContextTask@blink@@U?$default_delete@VExecutionContextTask@ [0x0169F7E1+50]
STDERR: 	??R?$PartBoundFunctionImpl@$0A@V?$tuple@$$QAV?$CrossThreadWeakPersistentThisPointer@VMainThreadTaskRunner@blink@@@blink@@$$QAV?$PassedWrapper@V?$unique_ptr@VExecutionContextTask@blink@@U?$default_delete@VExecutionContextTask@blink@@@std@@@std@@@WTF@@$$QA_ [0x0169F958+13]
STDERR: 	blink::internal::runCallClosureTask<1> [0x014A1DBB+11]
STDERR: 	base::internal::Invoker<base::IndexSequence<0>,base::internal::BindState<base::internal::RunnableAdapter<void (__cdecl*)(std::unique_ptr<webcrypto::`anonymous namespace'::DeriveBitsState,std::default_delete<webcrypto::`anonymous namespace'::DeriveBitsStat [0x01DC66FB+33]
STDERR: 	base::debug::TaskAnnotator::RunTask [0x024F7397+247]
STDERR: 	scheduler::TaskQueueManager::ProcessTaskFromWorkQueue [0x00DFF785+487]
STDERR: 	scheduler::TaskQueueManager::DoWork [0x00DFF1BE+294]
STDERR: #EOF