How to get Rust code coverage staticstics in Clion 2021.1

Question

It looks like CLion 2021.1 has source-based code coverage working with the Rust plugin because I can see the green/red line annotations in the code view:

But if I go to the Coverage panel, I see the following:

Clicking the Edit button does not guide me in how to fix configuration settings.

Summary

I'd like to be able to view Rust code coverage statistics with CLion 2021.1, anyone know how to do this?

Answer 1

Try these steps, they fixed it for me:

1. Close CLion and delete the folder .idea in the project directory (yes, really)
2. Update grcov by running cargo install --force grcov
3. Start CLion and try it again