Study Rust compiler error indexes by tests

This project helps to understand how Rust compiler helps software developers by error messages which it provides.

This project error by error (E0__) provide examples how to reproduce error message.

Improved examples describing compiler errors give a better understanding of how to write the correct code.

How to study

1. Open a test.
2. Uncomment the code 'TODO' line below.
3. Launch the test.

Tests are here.