Fix issue stellar#1406: Update lib.rs to see the expected output when…

… deploying the Increment contract

soroban-hello-world/contracts/increment/src/lib.rs

@@ -0,0 +1,31 @@
+#![no_std]
+// use soroban_sdk::{contract, contractimpl, vec, Env, String, Vec};
+use soroban_sdk::{contract, contractimpl, log, symbol_short, Env, Symbol};
+
+// const COUNTER: Symbol = Symbol::new("counter");
+const COUNTER: Symbol = symbol_short!("COUNTER");
+
+#[contract]
+pub struct Contract;
+
+#[contractimpl]
+impl Contract {
+    // pub fn hello(env: Env, to: String) -> Vec<String> {
+    //     vec![&env, String::from_str(&env, "Hello"), to]
+
+    pub fn increment(env: Env) -> u32 {
+        let mut count: u32 = env.storage().instance().get(&COUNTER).unwrap_or(0);
+
+        count += 1;
+
+        log!(&env, "count: {}", count);
+
+        env.storage().instance().set(&COUNTER, &count);
+
+        env.storage().instance().extend_ttl(100, 100);
+
+        count
+    }   
+}
+
+mod test;