This is an introductory Rust programming challenge and is a great way to learn about the Rust programming language. Fix the compile errors in the provided main.rs Rust source file and the flag will be printed.
Note that there are unit tests provided that should all pass... no changes were made to the unit tests.
You will need to install the Rust tool chain to compile the source. Rust is known for very good error messages so this challenge is great way to learn a little about Rust programming.