Just noticed in cannot build a standalone Rust source file "error: could not find 'Cargo.toml'" I assume first need to create a project by "cargo new" ...? A

Just noticed in cannot build a standalone Rust source file "error: could not find 'Cargo.toml'" I assume first need to create a project by "cargo new" ...? Anyway, love the good ol' Turbo Pascal 7 Reference. Haven't touch it for more than 1 decade.