Up to 8 combination dose levels of axitinib and bosutinib may be tested. Up to 6 participants will be enrolled at each dose level. The first group of participants will receive the lowest dose level. Each new group will receive a higher dose than the group before it, if no intolerable side effects were seen. If intolerable side effects are seen, lower dose combinations of axitinib and bosutinib may also be tested. This will continue until the recommended dose of axitinib and bosutinib is found.