wokwi: use eol conversion

ci: swith to dtolnay rust setup action

ci: remove unnecessary log feature

ci: add rust-src component

ci: use nightly and target explicitly

ci: use explicit target for build

ci: use nightly toolchain

ci: use different action to setup Rust

ci: add rust build action

ci: type in directory name

ci: add testing of traffic lights

add logging message about the color

initial version of traffic lights

initial import