"Debug toolchain is not configured" in CLion

I'm using CLion with the Rust plugin on Windows with the Nightly GNU toolchain.

Previously I could simply debug my application by setting a breakpoint and clicking the "bug" button. Since some update this doesn't seem to work anymore. When I now click the bug button I get an error message "Debug toolchain is not configured". Then it takes me to the settings dialog where I can choose between adding a MinGW, Cygwin, Visual Studio or Remote Host toolchain.

Has anyone had a similar experience and got it to work again?