Program received signal SIGSEGV, Segmentation fault.
 0x0000000000618651 in PostProcessing::giveBoost(unsigned int) ()
 (gdb) bt
 #0  0x0000000000618651 in PostProcessing::giveBoost(unsigned int) ()
 #1  0x00000000006b0bbf in PlayerController::handleZipper(bool) ()
 #2  0x00000000006a5704 in Powerup::use() ()
 #3  0x00000000006be677 in Kart::update(float) ()
 #4  0x00000000006e6426 in World::update(float) ()
 #5  0x00000000006dd88c in LinearWorld::update(float) ()
 #6  0x00000000006e7c8e in World::updateWorld(float) ()
 #7  0x00000000006d881c in MainLoop::run() ()
 #8  0x000000000058dfb8 in main ()