found a way to import libs and execute file with libs support

Tutorial/Cargo.lock

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Tutorial/Cargo.toml

@@ -1,8 +1,9 @@
 [package]
-name = "tuto de guillaume gomez"
+name = "tuto_de_guillaume_gomez"
 version = "0.0.1"
 authors = ["Marc Partensky <marc.partensky@gmail.com>"]
+edition = "2018"
 
 
 [dependencies]
-time = "*"
+ferris-says = "0.2.0"

Tutorial/src/main.rs

@@ -1,7 +1,8 @@
-#!/usr/bin/env run-cargo-script
-
+#!/usr/bin/env cargo run
 // use std::fs::File;
-extern crate time;
+
+// extern crate time;
+// use time::now;
 
 
 // extern crate rand;
@@ -50,7 +51,7 @@ extern crate time;
 //     }
 // }
 
-fn main() {
+// fn main() {
     // ContextBuilder::new("Pong", 800, 600)
     //     .quit_on_escape(true)
     //     .build();
@@ -274,5 +275,18 @@ fn main() {
 
     // panic!("C'est la merde!");
 
-    println!("{:?}", time::now());
+    // println!("{:?}", time::now());
+// }
+
+extern crate ferris_says;
+
+use ferris_says::say;
+use std::io::{ stdout, BufWriter };
+
+fn main() {
+    let out = b"Hello fellow Rustaceans!";
+    let width = 24;
+
+    let mut writer = BufWriter::new(stdout());
+    say(out, width, &mut writer).unwrap();
 }