/usr/ is in libqtdbustest1-dev 0.2+17.04.20170106-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/libqtdbustest-1/
/usr/include/libqtdbustest-1/libqtdbustest/
/usr/include/libqtdbustest-1/libqtdbustest/DBusService.h
/usr/include/libqtdbustest-1/libqtdbustest/DBusTestRunner.h
/usr/include/libqtdbustest-1/libqtdbustest/QProcessDBusService.h
/usr/include/libqtdbustest-1/libqtdbustest/SuicidalProcess.h
/usr/include/libqtdbustest-1/libqtdbustest/config.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libqtdbustest-1.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libqtdbustest1-dev/
/usr/share/doc/libqtdbustest1-dev/copyright
/usr/lib/x86_64-linux-gnu/libqtdbustest.so
/usr/share/doc/libqtdbustest1-dev/changelog.Debian.gz