Assuming you have followed Install Ansible then is as simple as (from the playbooks folder) running:
ansible-playbook -K -i hosts rust.yml
This will Rust and Cargo.
Which installer should you use?
curl https://sh.rustup.rs -sSf | sh
Uninstall Rust:
rustup self uninstall
Add source $HOME/.cargo/env
to your shell configuration in case the installer fails to do so.