Currently, 'CFI Linux' and other CFI buildbots don't show line numbers. It's hard to make any judging given the stack trace like this:

@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#0 0x000005a6a2c3 base::debug::StackTrace::StackTrace()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#1 0x0000016d739f content::(anonymous namespace)::DumpStackTraceSignalHandler()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#2 0x7fa821f47cb0 <unknown>@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#3 0x7fa821ffdfdd __poll@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#4 0x7fa8274fffe4 <unknown>@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#5 0x7fa8275000ec g_main_context_iteration@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#6 0x000005a83a35 base::MessagePumpGlib::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#7 0x000005a9e5f1 base::RunLoop::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#8 0x0000059702a4 content::RunThisRunLoop()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#9 0x000000f5a66c (anonymous namespace)::WebBluetoothTest_WebBluetoothAfterCrash_Test::RunTestOnMainThread()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#10 0x00000122b909 InProcessBrowserTest::RunTestOnMainThreadLoop()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#11 0x0000016d710c content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#12 0x00000127d04b ChromeBrowserMainParts::PreMainMessageLoopRunImpl()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#13 0x00000127aeba ChromeBrowserMainParts::PreMainMessageLoopRun()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#14 0x000002a0c6a0 content::BrowserMainLoop::PreMainMessageLoopRun()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#15 0x000002cde5a7 content::StartupTaskRunner::RunAllTasksNow()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#16 0x000002a0ad8b content::BrowserMainLoop::CreateStartupTasks()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#17 0x000002a0ecd0 content::BrowserMainRunnerImpl::Initialize()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#18 0x000002a07792 content::BrowserMain()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#19 0x000005942932 content::ContentMainRunnerImpl::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#20 0x00000594104a content::ContentMain()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#21 0x0000016d6a23 content::BrowserTestBase::SetUp()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#22 0x00000122b4e9 InProcessBrowserTest::SetUp()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#23 0x000005bb51db testing::Test::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#24 0x000005bb6575 testing::TestInfo::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#25 0x000005bb6943 testing::TestCase::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#26 0x000005bbb179 testing::internal::UnitTestImpl::RunAllTests()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#27 0x000005bbadaf testing::UnitTest::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#28 0x00000123bf76 base::TestSuite::Run()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#29 0x0000012256ec ChromeTestSuiteRunner::RunTestSuite()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#30 0x00000596cf7e content::LaunchTests()@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#31 0x000000583cc3 main@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#32 0x7fa821f32f45 __libc_start_main@@@
@@@STEP_LOG_LINE@WebBluetoothTest.WebBluetoothAfterCrash@#33 0x000000583b4d <unknown>@@@