Engine turns over but will not start

My Ute had a flat battery so I was receiving a jump start from another vehicle. My Ute started fine on the first kick.
While the jumper leads were still attached, I was pumping up my tires with a pump running from my battery. After five or so minutes of my Ute running I removed the jumper leads and the car was still running fine. I them connected the pump to inflate another tire and as I turned the pump on the engine stopped and now will not start. I have checked that the fuses are all fine and am now looking for answers what happened.