Core was generated by `./qtcreator'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000027560 in ?? ()
[Current thread is 1 (Thread 0x7f0e1df90780 (LWP 12272))]
(gdb) bt
#0  0x0000000000027560 in ?? ()
#1  0x00007f0e145d880d in CppTools::CppModelManager::isCppEditor (editor=<optimized out>) at /home/anonymous/src/qt5/qt-creator/src/plugins/coreplugin/icontext.h:42
#2  0x00007f0e125596a8 in ClangCodeModel::Internal::(anonymous namespace)::<lambda(Core::IEditor*)>::operator() (__closure=<optimized out>, editor=<optimized out>) at /home/anonymous/src/qt5/qt-creator/src/plugins/clangcodemodel/clangbackendcommunicator.cpp:155
#3  __gnu_cxx::__ops::_Iter_pred<ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors(QList<Core::IEditor*>&)::<lambda(Core::IEditor*)> >::operator()<QList<Core::IEditor*>::iterator> (this=<optimized out>, __it=...) at /usr/include/c++/9/bits/predefined_ops.h:283
#4  std::__find_if<QList<Core::IEditor*>::iterator, __gnu_cxx::__ops::_Iter_pred<ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors(QList<Core::IEditor*>&)::<lambda(Core::IEditor*)> > > (__first=..., __last=..., __pred=...) at /usr/include/c++/9/bits/stl_algo.h:148
#5  std::__find_if<QList<Core::IEditor*>::iterator, __gnu_cxx::__ops::_Iter_pred<ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors(QList<Core::IEditor*>&)::<lambda(Core::IEditor*)> > > (__first=..., __last=..., __pred=...) at /usr/include/c++/9/bits/stl_algo.h:162
#6  std::__remove_if<QList<Core::IEditor*>::iterator, __gnu_cxx::__ops::_Iter_pred<ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors(QList<Core::IEditor*>&)::<lambda(Core::IEditor*)> > > (__last=..., __first=..., __pred=...) at /usr/include/c++/9/bits/stl_algo.h:863
#7  std::remove_if<QList<Core::IEditor*>::iterator, ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors(QList<Core::IEditor*>&)::<lambda(Core::IEditor*)> > (__first=..., __last=..., __pred=...) at /usr/include/c++/9/bits/stl_algo.h:940
#8  ClangCodeModel::Internal::(anonymous namespace)::removeNonCppEditors (visibleEditors=...) at /home/anonymous/src/qt5/qt-creator/src/plugins/clangcodemodel/clangbackendcommunicator.cpp:160
#9  ClangCodeModel::Internal::(anonymous namespace)::visibleCppEditorDocumentsFilePaths () at /home/anonymous/src/qt5/qt-creator/src/plugins/clangcodemodel/clangbackendcommunicator.cpp:169
#10 0x00007f0e12559762 in ClangCodeModel::Internal::BackendCommunicator::documentVisibilityChanged (this=0x55a8dc2a1fa0) at /home/anonymous/src/qt5/qt-creator/src/plugins/clangcodemodel/clangbackendcommunicator.cpp:192
#11 0x00007f0e1255993c in ClangCodeModel::Internal::BackendCommunicator::setBackendJobsPostponed (this=0x55a8dc2a1fa0, postponed=<optimized out>) at /home/anonymous/src/qt5/qt-creator/src/plugins/clangcodemodel/clangbackendcommunicator.cpp:208
#12 0x00007f0e1f231e6e in QtPrivate::QSlotObjectBase::call (a=0x7ffec92d9d70, r=0x55a8dc2a1fa0, this=0x55a8dc29f620) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#13 doActivate<false> (sender=0x7f0e20892a90 <Utils::GlobalFileChangeBlocker::instance()::blocker>, signal_index=3, argv=0x7ffec92d9d70) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/corelib/kernel/qobject.cpp:3886
#14 0x00007f0e1f22b237 in QMetaObject::activate (sender=sender@entry=0x7f0e20892a90 <Utils::GlobalFileChangeBlocker::instance()::blocker>, m=m@entry=0x7f0e20886400 <Utils::GlobalFileChangeBlocker::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec92d9d70)
    at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/corelib/kernel/qobject.cpp:3946
#15 0x00007f0e20639833 in Utils::GlobalFileChangeBlocker::stateChanged (this=this@entry=0x7f0e20892a90 <Utils::GlobalFileChangeBlocker::instance()::blocker>, _t1=<optimized out>, _t1@entry=false) at src/libs/utils/Utils_autogen/EWIEGA46WW/moc_globalfilechangeblocker.cpp:133
#16 0x00007f0e206e6f5b in Utils::GlobalFileChangeBlocker::emitIfChanged (this=0x7f0e20892a90 <Utils::GlobalFileChangeBlocker::instance()::blocker>) at /home/anonymous/src/qt5/qt-creator/src/libs/utils/globalfilechangeblocker.cpp:65
#17 0x00007f0e206e6ff9 in Utils::GlobalFileChangeBlocker::eventFilter (this=<optimized out>, obj=<optimized out>, e=<optimized out>) at /home/anonymous/src/qt5/qt-creator/src/libs/utils/globalfilechangeblocker.cpp:57
#18 0x00007f0e1f1fab9e in QCoreApplicationPrivate::sendThroughApplicationEventFilters (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1169
#19 QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=this@entry=0x55a8db218560, receiver=receiver@entry=0x7ffec92da670, event=event@entry=0x7ffec92da090) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1154
#20 0x00007f0e2001ed00 in QApplicationPrivate::notify_helper (this=this@entry=0x55a8db218560, receiver=receiver@entry=0x7ffec92da670, e=e@entry=0x7ffec92da090) at /usr/include/c++/9/bits/atomic_base.h:734
#21 0x00007f0e20027c70 in QApplication::notify (this=0x7ffec92da670, receiver=0x7ffec92da670, e=0x7ffec92da090) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/widgets/kernel/qapplication.cpp:3417
#22 0x00007f0e1f1faf6a in QCoreApplication::notifyInternal2 (receiver=0x7ffec92da670, event=0x7ffec92da090) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#23 0x00007f0e1f8d835c in QGuiApplicationPrivate::setApplicationState (state=state@entry=Qt::ApplicationActive, forcePropagate=forcePropagate@entry=false) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/include/QtCore/../../src/corelib/kernel/qcoreapplication.h:116
#24 0x00007f0e1f8dbd54 in QGuiApplicationPrivate::processActivatedEvent (e=0x55a8dd7201d0) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/gui/kernel/qguiapplication.cpp:2430
#25 0x00007f0e1f8e0a8c in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55a8dd7201d0) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/gui/kernel/qguiapplication.cpp:1967
#26 0x00007f0e1f8b88ab in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:1175
#27 0x00007f0e1d94730e in xcbSourceDispatch (source=<optimized out>) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:105
#28 0x00007f0e1e2d917d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f0e1e2d9400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f0e1e2d94a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f0e1f255752 in QEventDispatcherGlib::processEvents (this=0x55a8db272b60, flags=...) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#32 0x00007f0e1f1f9a7b in QEventLoop::exec (this=this@entry=0x7ffec92da3d0, flags=..., flags@entry=...) at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/include/QtCore/../../src/corelib/global/qflags.h:141
#33 0x00007f0e1f201c14 in QCoreApplication::exec () at /home/anonymous/.conan/data/qt/5.15.0/core/testing/source/qt/qtbase/include/QtCore/../../src/corelib/global/qflags.h:121
#34 0x000055a8d986daf7 in main (argc=<optimized out>, argv=<optimized out>) at /home/anonymous/src/qt5/qt-creator/src/app/main.cpp:778
(gdb)11111111