https://ci.chromium.org/buildbot/chromium.gpu.fyi/Linux%20Release%20Swarmed%20%28Intel%20HD%20630%29/80
webgl2_conformance_tests
webgl_conformance_gl_passthrough_tests
webgl_conformance_tests

[1:4:1220/122905.282631:FATAL:thread_restrictions.cc(138)] Check failed: false. LazyInstance/Singleton is not allowed to be used on this thread.  Most likely it's because this thread is not joinable (or the current task is running with TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN semantics), so AtExitManager may have deleted the object on shutdown, leading to a potential shutdown crash. If you need to use the object from this context, it'll have to be updated to use Leaky traits.
#0 0x55574c82453c base::debug::StackTrace::StackTrace()
#1 0x55574c8441ec logging::LogMessage::~LogMessage()
#2 0x55574c8b5566 base::ThreadRestrictions::AssertSingletonAllowed()
#3 0x55574cf3212f gfx::ColorSpace::ToSkColorSpace()
#4 0x55574da78321 cc::SoftwareImageDecodeCache::DoDecodeImage()
#5 0x55574da77608 cc::SoftwareImageDecodeCache::DecodeImageIfNecessary()
#6 0x55574da77066 cc::SoftwareImageDecodeCache::DecodeImageInTask()
#7 0x55574da7c18a cc::(anonymous namespace)::SoftwareImageDecodeTaskImpl::RunOnWorkerThread()
#8 0x55574da3bd4c cc::ImageController::ProcessNextImageDecodeOnWorkerThread()
#9 0x55574c825b3a base::debug::TaskAnnotator::RunTask()
#10 0x55574c8a2a28 base::internal::TaskTracker::RunOrSkipTask()
#11 0x55574c8a363b base::internal::TaskTrackerPosix::RunOrSkipTask()
#12 0x55574c8a1bfa base::internal::TaskTracker::RunNextTask()
#13 0x55574c89ee96 base::internal::SchedulerWorker::Thread::ThreadMain()
#14 0x55574c8ab88f base::(anonymous namespace)::ThreadFunc()
#15 0x7fa449e6c6da start_thread
#16 0x7fa443d92d7f clone

Suspecting https://chromium-review.googlesource.com/828053 because of the stack