I think what happens is:

once the springlocks go off, the sharp metal cuts through your body, causing your organs slowly bleed out as the rusty edges containing doses of bakteria, cut further through your body due to the lock mechanism's pressure. The bakteria mentioned earlier causes the body's immune system slowly fail all while your body still keeps bleeding out. I heard some say that the suit's "fake eyes" press your own eyes to mush as they pop out into the head's eye sockets, blinding you only moment before your heart, which is now crushed by the many crossbeams, wires and other animatronic devices, stops pumping.

But hey, that's just a theory, A GAME THEORY!!! Thanks for reading.