I don't think that Inspections are considered Performance Objectives but you can never be too careful.
I also failed my swim test, no big deal. For the remainder of the swim classes I floated in the kiddie pool with a flutter board along with the other rock swimmers. I had no bearing on my performance as a soldier in training.
Don't worry if you don't get everything right the first time, they're looking for improvement and the ability to be trained. There is nothing wrong with leaving a little room for improvement when you start out. You might get yelled at but that's all part of the game.