Chapter 0103 done

Projects/hello_cargo/Cargo.toml

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+[package]
+name = "hello_cargo"
+version = "0.1.0"
+edition = "2021"
+authors = ["HaQadosch Berraka <haqadosch+rust@pm.me>"]
+description = "displays hello world"
+documentation = "./docs/ref.org"
+readme = "./docs/readme.org"
+
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

Projects/hello_cargo/src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}