Valgrind analysis gives no results: "parsing finished, no data"

Profiling /home/mitch/dev/temp/quick-Desktop_Qt_5_9_1_GCC_64bit2-Profile/quick
==5696== Callgrind, a call-graph generating cache profiler
==5696== Copyright (C) 2002-2017, and GNU GPL'd, by Josef Weidendorfer et al.
==5696== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==5696== Command: /home/mitch/dev/temp/quick-Desktop_Qt_5_9_1_GCC_64bit2-Profile/quick
==5696== 
==5696== For interactive control, run 'callgrind_control -h'.
QML debugging is enabled. Only use this in a safe environment.
==5696== brk segment overflow in thread #1: can't grow to 0x576b000
==5696== (see section Limitations in user manual)
==5696== NOTE: further instances of this message will not be shown
==5696== 
==5696== Process terminating with default action of signal 15 (SIGTERM)
==5696==    at 0x6DCA2AB: ??? (syscall-template.S:84)
==5696==    by 0xA6AF791: ??? (in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2)
==5696==    by 0x627D31D: QCoreApplication::postEvent(QObject*, QEvent*, int) (in /home/mitch/dev/qt-unified/5.9.1/gcc_64/lib/libQt5Core.so.5.9.1)
==5696==    by 0x62A42CF: QMetaObject::activate(QObject*, int, int, void**) (in /home/mitch/dev/qt-unified/5.9.1/gcc_64/lib/libQt5Core.so.5.9.1)
==5696==    by 0xD8565D4: ??? (in /home/mitch/dev/qt-unified/5.9.1/gcc_64/lib/libQt5XcbQpa.so.5.9.1)
==5696==    by 0x60AB849: ??? (in /home/mitch/dev/qt-unified/5.9.1/gcc_64/lib/libQt5Core.so.5.9.1)
==5696==    by 0x74356B9: start_thread (pthread_create.c:333)
==5696==    by 0x6DDA3DC: clone (clone.S:109)
==5696== 
==5696== Events    : Ir
==5696== Collected : 203830788
==5696== 
==5696== I   refs:      203,830,788
The program has unexpectedly finished.
Process terminated.
Analyzing finished.