Food and meds storage disastor

[Metroyeti]

Been storing my food in plastic storage boxes just went to remove a few cans that were getting near the end of there shelflife. I noticed some of the cans have gone abit rusty at the bottom. My main concern is with my rice/pasta and a few meds ive got.i carnt see any mould in the bags of rice but will it be safe? I dont want to risk botulism if tshf tomorrow, should I bin it and get a fresh supply?(aswel as aload of oxygen absorbers)