The hosts were entertaining the biggest number of Sky Blues fans (31,054) since they played in the Charity Shield at Wembley in 1987 and ultimately paid the price for their strong desire to record a famous victory.
Robins' side dominated the first half but could not find the breakthrough and were made to pay for that by some ruthless finishing by the Railwaymen after the break, coming after goalkeeper Joe Murphy was replaced by Chris Dunn at half-time having fallen victim to a hamstring injury.
"I wouldn't attach any blame whatsoever to the goalkeeper," Robins said.
"I thought we were a victim of our own incredible support. We wanted to try and win the game here and it was naive. It's not a one-off event, we had to try and stay in the game.
"If you can't score then you draw 0-0. The players know that. They just got carried away in trying to score for the supporters because you knew the roof was going to lift off if we did. It was electric in here.
"We created numerous chances and couldn't take any so we became anxious and continued to try and get the goal. I wanted them to try and get the goal so fair play to them but we were naive.
"We left the middle of the pitch wide open and didn't get behind the ball. It was disappointing. They had seven shots all game and had three goals."