Included MinGW version is not able to create a usable debug build of Qt Creator

qmake.exe -r "CONFIG+=debug"
[...]
mingw32-make.exe -j 9
[...]
gdb bin\qtcreator.exe

GNU gdb (GDB) 7.5.1
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from c:\Users\peter\Develop\repos\qt-creator_build\bin\qtcreator.exe...done.
(gdb) run
Starting program: c:\Users\peter\Develop\repos\qt-creator_build\bin\qtcreator.exe
[New Thread 4372.0xe7c]
warning: SHIMVIEW: ShimInfo(Complete)

../../../../src/gdb-7.5.1/gdb/utils.c:1081: internal-error: virtual memory exhausted: can't allocate 6434006 bytes.
A problem internal to GDB has been detected,
further debugging may prove unreliable.