Awesome
stm32ral-example
This crate is an example embedded project using stm32ral.
It targets an STM32F405 microcontroller but is readily adapted to other STM32 devices.
Building It Yourself
You should be able to:
$ git clone https://github.com/adamgreig/stm32ral-example
$ cd stm32ral-example
$ cargo build --release
If that didn't work, you might need to set up your Rust environment:
$ rustup target add thumbv7em-none-eabihf