Move tons of stuff into oldstuff/

oldstuff/rustbook/guessing_game/.gitignore

@@ -0,0 +1,2 @@
+target/
+Cargo.lock

oldstuff/rustbook/guessing_game/Cargo.toml

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+[package]
+name = "guessing_game"
+version = "0.1.0"
+authors = ["Dan Buch <daniel.buch@gmail.com>"]
+
+[dependencies]
+rand = "0.4.0"

oldstuff/rustbook/guessing_game/src/main.rs

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+extern crate rand;
+
+use std::cmp::Ordering;
+use std::io;
+use rand::Rng;
+
+fn main() {
+    println!("Guess the number!");
+
+    let secret_number = rand::thread_rng().gen_range(1, 101);
+
+    loop {
+        println!("Please input your guess.");
+
+        let mut guess = String::new();
+
+        io::stdin()
+            .read_line(&mut guess)
+            .expect("Failed to read line");
+
+        let guess: u32 = match guess.trim().parse() {
+            Ok(num) => num,
+            Err(_) => continue,
+        };
+
+        println!("You guessed: {}", guess);
+
+        match guess.cmp(&secret_number) {
+            Ordering::Less => println!("Too small!"),
+            Ordering::Greater => println!("Too big!"),
+            Ordering::Equal => {
+                println!("You win!");
+                break;
+            }
+        }
+    }
+}