Is possibly bacteria-infected poultry safe after cooking?!

Is possibly bacteria-infected poultry safe after cooking?

I cut up and marinated two large pieces of raw turkey breast yesterday and put each piece into two separate sealable plastic containers (like tupperware). Now today, one of the containers -- and not the other -- is bulging out, which I believe indicates that there's some sort of bacteria living in it. Will it be okay if I just cook it thoroughly, or should I waste about $3-4 and toss it? I'd rather not get sick, but I hate wasting food unnecessarily.

14 hours ago
Uhh, I should probably throw out that this is mostly me wanting to know if a bulged-out lid on a sealable plastic container indicates bacteria growth... Obviously I have no way to check for bacteria so I was wondering if that's the only thing that can be deduced from a bulged-out lid, or if there's other things -- non-bacterial -- that would cause the lid to do that. If it's something else, just blindly throwing away my food (PS I'm pretty damn poor) would be a very bad choice. I guess I should have asked specifically about the lid thing and not mentioned bacteria. And if there -is- bacteria, won't adequate cooking make it perfectly safe to eat? After all, isn't that why you always cook eggs and poultry thoroughly?

I don't get the pidture
are things equal
meat purchased same time
marinade equal
???
overnight in the frig ,,,no way
I say it is fine you just didnt expel the air in one.