Picture posting is enabled for all :)
Cucumbers have always wilted and died.
Ours are only in an uheated lean-to. But it mainly stays at a minimum of 45-50F because of the heated mats in it. They won't go out, into the cold 'house proper, for another 2 weeks. The 'wilty' thing is, I surmise, to do with the legginess of the plant. Dark green stubby plants seem to cope better? Or did you leave them out unprotected? There have been several mini-frosts lately.