I got a roller of the weekend (to be specific a Tacx Antares). After ridding it for less then 20 minutes my back tire looks like this. In other words there a lots of bulges. I tried deflating the tire and re-inflating, but they are still there.
I can't find anything on the internet concerning this problem. Does anyone know the cause, and solution?
Following Criggie's answer, I bought a roller-specfic tire for my back wheel. Thus far it seems to be holding up much better then the tire shown in the picture. Thus it seems like it was a heat issue with that specific type/make of tire.