how do i make this work damn

stderr.txt

terminal-example.rs:35:17: 35:21 error: borrowed value does not live long enough
terminal-example.rs:35     let canvas = term.create_canvas();
                                        ^~~~
terminal-example.rs:33:39: 40:1 note: borrowed pointer must be valid for the lifetime &'r  as defined on the block at 33:39...
terminal-example.rs:33 fn get_app_state<'r>() -> AppState<'r> {
terminal-example.rs:34     let term = Terminal::new();
terminal-example.rs:35     let canvas = term.create_canvas();
terminal-example.rs:36     return AppState{
terminal-example.rs:37         term: term,
terminal-example.rs:38         canvas: canvas,
                       ...
terminal-example.rs:33:39: 40:1 note: ...but borrowed value is only valid for the block at 33:39
terminal-example.rs:33 fn get_app_state<'r>() -> AppState<'r> {
terminal-example.rs:34     let term = Terminal::new();
terminal-example.rs:35     let canvas = term.create_canvas();
terminal-example.rs:36     return AppState{
terminal-example.rs:37         term: term,
terminal-example.rs:38         canvas: canvas,
                       ...
error: aborting due to previous error

terminal-example.rs

struct Terminal {
    output_fd: uint,
}

impl Terminal {
    fn new() -> Terminal {
        return Terminal{ output_fd: 1 };
    }

    fn create_canvas<'r>(&'r self) -> Canvas<'r> {
        return Canvas{
            term: self,
        };
    }
}


struct Canvas<'self> {
    term: &'self Terminal,
}


struct AppState<'self> {
    term: Terminal,
    canvas: Canvas<'self>,
}


fn main() {
    let app = get_app_state();
}

fn get_app_state<'r>() -> AppState<'r> {
    let term = Terminal::new();
    let canvas = term.create_canvas();
    return AppState{
        term: term,
        canvas: canvas,
    };
}