Comment 2 for bug 1666472

StacktraceTop:
 qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1682
 QMessageLogger::fatal (this=this@entry=0x7ffd292ca7a0, msg=msg@entry=0x7f16ac63fd40 "QXcbConnection: Could not connect to display %s") at global/qlogging.cpp:793
 QXcbConnection::QXcbConnection (this=0x5578e4344e60, nativeInterface=0x5578e4336f30, canGrabServer=<optimized out>, defaultVisualId=<optimized out>, displayName=<optimized out>) at qxcbconnection.cpp:595
 QXcbIntegration::QXcbIntegration (this=<optimized out>, parameters=..., argc=@0x7ffd292cad8c: 1, argv=0x7ffd292cafd8) at qxcbintegration.cpp:186
 QXcbIntegrationPlugin::create (this=<optimized out>, system=..., parameters=..., argc=@0x7ffd292cad8c: 1, argv=0x7ffd292cafd8) at qxcbmain.cpp:56