Add a semicolon and set the test to not execute
//! # Getting started
//!
-//! ```rust
+//! ```rust,no_run
//! use sdl2::pixels::Color;
//! use sdl2::event::Event;
//! use sdl2::keyboard::Keycode;
//! let mut i = 0;
//! 'running: loop {
//! i = (i + 1) % 255;
-//! canvas.set_draw_color(Color::RGB(i, 64, 255 - i))
+//! canvas.set_draw_color(Color::RGB(i, 64, 255 - i));
//! canvas.clear();
//! for event in event_pump.poll_iter() {
//! match event {
