Use cargo run tu build and run Rust projects

[lucatrv]

See:
https://doc.rust-lang.org/book/second-edition/ch01-03-hello-cargo.html
https://doc.rust-lang.org/stable/cargo/

[formulahendry]

Hi @lucatrv , thanks for your contribution. I am not familiar with Rust. Just want to confirm is cargo more widely used than rustc?

[lucatrv]

cargo is Rust’s build system and package manager, while rustc is the compiler. You may use rustc directly to compile a single file, but developers definitely use cargo to build their projects.

See for instance:
https://www.rust-lang.org/learn/get-started
https://doc.rust-lang.org/book/ch01-03-hello-cargo.html

[danielrab]

oh, there already was a PR open for this, oops. I opened another without checking #977

[laundmo]

@formulahendry Just had someone learning Rust get perplexed why nothing worked. The issue was caused by what this PR would solve. cargo is definitely the de-facto standard way to run Rust projects, with only a few special cases with complex setups (like the linux kernel or cross-language projects) using something else.