Attempt at random string generation in Rust

randomstring.rs

use std::rand;
use std::rand::Rng;
use std::str;

static TARGET: &'static str = "methinks it is like a weasel";

static ALPHABET: &'static [u8] = bytes!("abcdefghijklmnopqrstuvwxyz");

fn random_char() -> u8 {
  rand::task_rng().choose(ALPHABET)
}

fn random_string () -> ~str {
  let mut result = str::with_capacity(TARGET.len());
  for _ in range(0, TARGET.len()) {
    result.push_char(random_char() as char);
  }
  result
}

fn main() {
  println(random_string());
}

Something I came up with in Rust 0.11

fn random_string(length: uint) -> String {
  let mut string = String::new();
  for char in rand::task_rng().gen_ascii_chars().take(length) {
    string.push_char(n);
  }
  string
}