Hello, I wanted to use QtBitcionTrader on my linux mint machine it won't install

Here's log from terminal, make instal and also sudo make install produce same output:
install -m 755 -p QtBitcoinTrader /usr/bin/QtBitcoinTrader
install: cannot create regular file '/usr/bin/QtBitcoinTrader': Permission denied
Makefile:4628: recipe for target 'install_target' failed
make: [install_target] Error 1 (ignored)
strip /usr/bin/QtBitcoinTrader
strip: '/usr/bin/QtBitcoinTrader': No such file
Makefile:4628: recipe for target 'install_target' failed
make: [install_target] Error 1 (ignored)
install -m 644 -p /home/trader/QtBitcoinTrader/src/QtBitcoinTrader.desktop /usr/share/applications/
install: cannot create regular file '/usr/share/applications/QtBitcoinTrader.desktop': Permission denied
Makefile:4638: recipe for target 'install_desktop' failed
make: [install_desktop] Error 1 (ignored)
install -m 644 -p /home/trader/QtBitcoinTrader/src/QtBitcoinTrader.png /usr/share/pixmaps/
install: cannot create regular file '/usr/share/pixmaps/QtBitcoinTrader.png': Permission denied
Makefile:4647: recipe for target 'install_icon' failed
make: [install_icon] Error 1 (ignored)
browser@browser-VirtualBox ~ $ ls -l /usr
total 132
drwxr-xr-x 2 root root 69632 Sep 17 14:23 bin
drwxr-xr-x 2 root root 4096 Jun 28 14:57 games
drwxr-xr-x 55 root root 12288 Sep 17 14:18 include
drwxr-xr-x 150 root root 12288 Sep 17 14:23 lib
drwxr-xr-x 10 root root 4096 Jun 28 14:37 local
drwxr-xr-x 2 root root 12288 Sep 15 18:48 sbin
drwxr-xr-x 312 root root 12288 Sep 17 14:23 share
drwxr-xr-x 8 root root 4096 Sep 15 18:48 src
browser@browser-VirtualBox ~ $ ls -l /usr/share/ | grep applications
drwxr-xr-x 3 root root 12288 Sep 9 19:10 applications
What have I done wrong?
Tell exact steps you did before this output.
PS: soon we will make linux x86_64 version binary with auto update feature
Sorry for late response, let me answer your questions:
1. downloaded src from git via git clone;
2. cd into Qttrader.../src
3. sudo apt-get install g++ libssl-dev libglu1-mesa-dev qt5-qmake qtscript5-dev qtmultimedia5-dev
export QT_SELECT=5
sudo qmake QtBitcoinTrader_Desktop.pro
qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake' : No such file or directory
qmake is somehow still linked to qt4, without sudo no error dialog;
4. sudo make && make install && make clean, sudo or not, still fails -_-
First thought, that user browser was not in adm group so I added him but that changes nothing.
edit:
I've managed to compile Qt bitcoin trader, solution was to execute make commands separately
make
sudo make install
make clean