I think the standard approach for crates to work around problems like this is to patch the vendor's XML. Terrible that it's necessary, but workable. The "STM32F103xx.patch" in japaric's stm32f103 support crate [1] seems a decent example of the sort of hacks that are standard. [1] https://github.com/japaric/stm32f103xx/blob/master/STM32F103...