Mismatched types with class self region

[brson]

class font/& {
    let fontbuf: &self.[u8];

    new(fontbuf: &self.[u8]) {
        self.fontbuf = fontbuf;
    }

    fn buf() -> &self.[u8] {
        self.fontbuf
    }
}

fn main() { }

/home/banderson/Dev/rust/src/test/run-pass/test.rs:5:23: 5:30 error: mismatched types: expected `&self.[u8]` but found `&self.[u8]` (references with lifetime &self do not necessarily outlive references with lifetime &self)
/home/banderson/Dev/rust/src/test/run-pass/test.rs:5         self.fontbuf = fontbuf;