# First Welcome Library Crate this is a demo rust library published on crates.io to use this library you have to add following line in dependency section of cargo.toml `library_crate = "0.1.2"` your cargo.toml file should look like this: ``` [package] name = "library_crate" version = "0.1.2" authors = ["SyedHussainAhmed121 "] edition = "2018" [dependencies] library_crate = "0.1.2" ``` In `src/main.rs` you can use like this: ``` use library_crate; fn main() { println!("Hello, world!"); library_crate::welcome(); } ``` following will also work: ``` use library_crate::welcome; fn main() { println!("Hello, world!"); welcome(); } ``` now `cargo run` for results