doc.rs

/// ```rust
///     use crusty_chip::{ DISPLAY_WIDTH, VirtualMachine };
///     // Dump the pixels to stdout
///     fn dump_pixels(pixels: &[u8]) {
///         for (i, px) in pixels.iter().enumerate() {
///             match *px {
///                 0 => print!(" "),
///                 _ => print!("#")
///             }
///             if i % DISPLAY_WIDTH == 0 {
///                 print!("\n");
///             }
///         }
///     }
///     let mut ch8 = VirtualMachine::new(&mut dump_pixels);
///     // ...
/// ```

rustc.out

---- DrawCallback_0 stdout ----
	<anon>:19:48: 19:59 error: borrowed value does not live long enough
<anon>:19         let mut ch8 = VirtualMachine::new(&mut dump_pixels);
                                                         ^~~~~~~~~~~
<anon>:5:11: 21:2 note: reference must be valid for the block at 5:10...
<anon>:5 fn main() {
<anon>:6         use crusty_chip::{ DISPLAY_WIDTH, VirtualMachine };
<anon>:7         // Dump the pixels to stdout
<anon>:8         fn dump_pixels(pixels: &[u8]) {
<anon>:9             for (i, px) in pixels.iter().enumerate() {
<anon>:10                 match *px {
          ...
<anon>:19:9: 19:60 note: ...but borrowed value is only valid for the statement at 19:8
<anon>:19         let mut ch8 = VirtualMachine::new(&mut dump_pixels);
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<anon>:19:9: 19:60 help: consider using a `let` binding to increase its lifetime
<anon>:19         let mut ch8 = VirtualMachine::new(&mut dump_pixels);
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: aborting due to previous error
thread 'DrawCallback_0' panicked at 'Box<Any>', /build/rust-git/src/rust/src/libsyntax/diagnostic.rs:144