I'm from embedded too. We tried to use rust in one of our projects and came to the conclusion that it makes no sense to convert our team from experiences C++ developers to beginner level Rust developers. Additionally to that, it was nearby impossible to control the amount of packages that come in with Cargo. We had for a small tool three versions of the same library as dependency in our binary.

Additionally to that, a part of the team doesn't had fun on writing code with Rust.

We trashed the whole tool, which was a massive loss of time for the project.