Reference to VS Code ext which no longer exists
Here's the line of code: https://gitlab.com/veloren/book/-/blob/master/src/compile/debugging.md#L19
Looks like that extension ("Rust" by kalitaalexy) is no longer available: https://marketplace.visualstudio.com/items?itemName=kalitaalexey.vscode-rust
As a beginner on this project, I don't know which extension to use instead.