Crash when debugging

#0  0x00007fffe231b6be in load<int> (_q_value=@0x7fff00000001: <error reading variable>)                                                                                                                                         
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/thread/qgenericatomic.h:96                                                                                           
#1  QBasicAtomicInteger<int>::load (this=0x7fff00000001)                                                                                                                                                                         
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/thread/qbasicatomic.h:142                                                                                            
#2  0x00007fffe231a6c4 in QtPrivate::RefCount::deref (this=0x7fff00000001)                                                                                                                                                       
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/tools/qrefcount.h:66                                                                                                 
#3  0x00007fffe23b70d3 in QVector<QString>::~QVector (this=0x7fffffffbc40, __in_chrg=<optimized out>)                                                                                                                            
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/tools/qvector.h:76                                                                                                   
#4  0x00007fffe23b6908 in QVector<QString>::operator= (this=0x21d1870, v=...)                                                                                                                                                    
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/tools/qvector.h:404                                                                                                  
#5  0x00007fffe23b646f in QStack<QString>::operator= (this=0x21d1870)                                                                                                                                                            
    at /home/frederik/dev/qt/qt-creator/qtbase/include/QtCore/../../../../qt-src-creator/qtbase/src/corelib/tools/qstack.h:51                                                                                                    
#6  0x00007fffe23b44ac in TextEditor::Highlighter::setupDataForBlock (this=0x219b170, text=...)                                                                                                                                  
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/generichighlighter/highlighter.cpp:192                                                                                                             
#7  0x00007fffe23b412c in TextEditor::Highlighter::highlightBlock (this=0x219b170, text=...)                                                                                                                                     
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/generichighlighter/highlighter.cpp:140                                                                                                             
#8  0x00007fffe23a3071 in TextEditor::SyntaxHighlighterPrivate::reformatBlock (this=0x21bdf50, block=..., from=0, charsRemoved=0, charsAdded=3506)                                                                               
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:227
#9  0x00007fffe23a2ed7 in TextEditor::SyntaxHighlighterPrivate::reformatBlocks (this=0x21bdf50, from=0, charsRemoved=0, charsAdded=3506)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:206
#10 0x00007fffe23a4baa in TextEditor::SyntaxHighlighterPrivate::rehighlight (this=0x21bdf50, cursor=..., operation=QTextCursor::End)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:64
#11 0x00007fffe23a3819 in TextEditor::SyntaxHighlighter::rehighlight (this=0x219b170)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:415
#12 0x00007fffe2342530 in TextEditor::BaseTextEditorWidget::setFontSettings (this=0x6c8f30, fs=...)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/basetexteditor.cpp:5635
#13 0x00007fffe231e6ef in TextEditor::PlainTextEditorWidget::configure (this=0x6c8f30, mimeType=...)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/plaintexteditor.cpp:157
#14 0x00007fffe231e2c3 in TextEditor::PlainTextEditorWidget::configure (this=0x6c8f30)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/plaintexteditor.cpp:112
#15 0x00007fffe241ad2a in TextEditor::PlainTextEditorWidget::qt_static_metacall (_o=0x6c8f30, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x2199ac0)
    at .moc/debug-shared/moc_plaintexteditor.cpp:160
#16 0x00007ffff61639c7 in QMetaCallEvent::placeMetaCall (this=0x21996d0, object=0x6c8f30)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qobject.cpp:479
#17 0x00007ffff6164984 in QObject::event (this=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qobject.cpp:1120
#18 0x00007ffff734d6d1 in QWidget::event (this=0x6c8f30, event=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/kernel/qwidget.cpp:8348
#19 0x00007ffff749ccab in QFrame::event (this=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/widgets/qframe.cpp:534
#20 0x00007ffff7537d25 in QAbstractScrollArea::event (this=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/widgets/qabstractscrollarea.cpp:1137
#21 0x00007ffff7566cec in QPlainTextEdit::event (this=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/widgets/qplaintextedit.cpp:1530
#22 0x00007fffe232b38b in TextEditor::BaseTextEditorWidget::event (this=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/plugins/texteditor/basetexteditor.cpp:2078
#23 0x00007ffff7303fc4 in QApplicationPrivate::notify_helper (this=0x666ce0, receiver=0x6c8f30, e=0x21996d0)
---Type <return> to continue, or q <return> to quit---
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/kernel/qapplication.cpp:3467
#24 0x00007ffff7303e27 in QApplication::notify (this=0x7fffffffd700, receiver=0x6c8f30, e=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/kernel/qapplication.cpp:3432
#25 0x00007ffff6128c94 in QCoreApplication::notifyInternal (this=0x7fffffffd700, receiver=0x6c8f30, event=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qcoreapplication.cpp:878
#26 0x00007ffff612c815 in QCoreApplication::sendEvent (receiver=0x6c8f30, event=0x21996d0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qcoreapplication.h:232
#27 0x00007ffff6129f94 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x666020)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qcoreapplication.cpp:1482
#28 0x00007ffff6129935 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qcoreapplication.cpp:1340
#29 0x00007ffff619ff69 in postEventSourceDispatch (s=0x69a650)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:279
#30 0x00007ffff4bd63b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007ffff4bd6708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007ffff4bd67ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007ffff61a0709 in QEventDispatcherGlib::processEvents (this=0x6b2c10, flags=...)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#34 0x00007fffee4d8920 in QPAEventDispatcherGlib::processEvents (this=0x6b2c10, flags=...)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:123
#35 0x00007ffff61259e6 in QEventLoop::processEvents (this=0x7fffffffcf60, flags=...)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qeventloop.cpp:136
#36 0x00007ffff6125cb1 in QEventLoop::exec (this=0x7fffffffcf60, flags=...)
    at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qeventloop.cpp:212
#37 0x00007ffff612936d in QCoreApplication::exec () at /home/frederik/dev/qt/qt-src-creator/qtbase/src/corelib/kernel/qcoreapplication.cpp:1131
#38 0x00007ffff672f734 in QGuiApplication::exec () at /home/frederik/dev/qt/qt-src-creator/qtbase/src/gui/kernel/qguiapplication.cpp:1332
#39 0x00007ffff7300ccd in QApplication::exec () at /home/frederik/dev/qt/qt-src-creator/qtbase/src/widgets/kernel/qapplication.cpp:2692
#40 0x000000000040e428 in main (argc=1, argv=0x7fffffffd858) at /home/frederik/dev/qt/qt-src-creator/qt-creator/src/app/main.cpp:533