Debugging a process in emulator detaches from process immediately

Deploying an executable to the emulator works and it runs. However, starting to debug it gives:

Debugging starts
"QML2_IMPORT_PATH" "/data/user/qt/qmlplugins"
"QTGLESSTREAM_DISPLAY" "192.168.56.1"
"QT_IM_MODULE" "qtvirtualkeyboard"
"QT_QPA_EGLFS_HEIGHT" "300"
"QT_QPA_EGLFS_HIDECURSOR" "1"
"QT_QPA_EGLFS_WIDTH" "1000"
"QT_QPA_GENERIC_PLUGINS" "simulator"
"QT_QUICK_CONTROLS_STYLE" "Flat"
"XDG_RUNTIME_DIR" "/tmp"
"gdbserver" ("localhost:10000", "/opt/deploytest-571/bin/deploytest-571")
Process /opt/deploytest-571/bin/deploytest-571 created; pid = 1069
Listening on port 10000
Remote debugging from host 127.0.0.1
File "/home/kaoikari1/Qt/5.8/Boot2Qt/emulator/toolchain/sysroots/i586-poky-linux/usr/lib/libstdc++.so.6.0.21-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
QML debugging is enabled. Only use this in a safe environment.
qt.qpa.egldeviceintegration: EGL device integration plugin keys: ()
qt.qpa.egldeviceintegration: Using base device integration
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
qt.qpa.input: libinput: input device 'Power Button', /dev/input/event0 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Power Button', /dev/input/event0 is a keyboard
qt.qpa.input: libinput: input device 'Sleep Button', /dev/input/event1 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Sleep Button', /dev/input/event1 is a keyboard
qt.qpa.input: libinput: input device 'Video Bus', /dev/input/event2 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Video Bus', /dev/input/event2 is a keyboard
qt.qpa.input: libinput: input device 'VirtualBox mouse integration', /dev/input/event5 is tagged by udev as: Mouse
qt.qpa.input: libinput: input device 'VirtualBox mouse integration', /dev/input/event5 is a pointer caps
qt.qpa.input: libinput: input device 'AT Translated Set 2 keyboard', /dev/input/event3 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'AT Translated Set 2 keyboard', /dev/input/event3 is a keyboard
qt.qpa.input: libinput: input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is tagged by udev as: Mouse
qt.qpa.input: libinput: input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is a pointer caps
qt.qpa.input: Using xkbcommon for key mapping
Could not load shared library symbols for /usr/lib/plugins/generic/libqvinputplugin.so.
Do you need "set solib-search-path" or "set sysroot"?QVInputMouseHandler::QVInputMouseHandler(const QString&, const QString&)
No environment variable SIMULATOR_IP set. Trying to autodetect ...
Invalid or no variable SIMULATOR_PORT set. Using default 48879
Detaching from process 1072
Process exited with exit code 0
quit
Debugging has finished

Start of successful deployment:

Starting remote application."QML2_IMPORT_PATH" "/data/user/qt/qmlplugins"
"QTGLESSTREAM_DISPLAY" "192.168.56.1"
"QT_IM_MODULE" "qtvirtualkeyboard"
"QT_QPA_EGLFS_HEIGHT" "300"
"QT_QPA_EGLFS_HIDECURSOR" "1"
"QT_QPA_EGLFS_WIDTH" "1000"
"QT_QPA_GENERIC_PLUGINS" "simulator"
"QT_QUICK_CONTROLS_STYLE" "Flat"
"XDG_RUNTIME_DIR" "/tmp"
"/opt/deploytest-571/bin/deploytest-571" ()
QML debugging is enabled. Only use this in a safe environment.
qt.qpa.egldeviceintegration: EGL device integration plugin keys: ()
qt.qpa.egldeviceintegration: Using base device integration
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
qt.qpa.input: libinput: input device 'Power Button', /dev/input/event0 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Power Button', /dev/input/event0 is a keyboard
qt.qpa.input: libinput: input device 'Sleep Button', /dev/input/event1 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Sleep Button', /dev/input/event1 is a keyboard
qt.qpa.input: libinput: input device 'Video Bus', /dev/input/event2 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Video Bus', /dev/input/event2 is a keyboard
qt.qpa.input: libinput: input device 'VirtualBox mouse integration', /dev/input/event5 is tagged by udev as: Mouse
qt.qpa.input: libinput: input device 'VirtualBox mouse integration', /dev/input/event5 is a pointer caps
qt.qpa.input: libinput: input device 'AT Translated Set 2 keyboard', /dev/input/event3 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'AT Translated Set 2 keyboard', /dev/input/event3 is a keyboard
qt.qpa.input: libinput: input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is tagged by udev as: Mouse
qt.qpa.input: libinput: input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is a pointer caps
qt.qpa.input: Using xkbcommon for key mapping
QVInputMouseHandler::QVInputMouseHandler(const QString&, const QString&)
No environment variable SIMULATOR_IP set. Trying to autodetect ...
Invalid or no variable SIMULATOR_PORT set. Using default 48879
Connection to QtSimulator established