Try to re-write code in http://dtrace.org/blogs/ahl/2015/06/22/first-rust-program-pain/

count.rs

use std::fs::File;
use std::path::Path;
use std::error::Error;
use std::io::{BufRead, BufReader, stdin};
use std::collections::HashMap;

fn sort_str(s: &str) -> String {
    let mut v: Vec<char> = s.chars().collect();
    v.sort();
    v.into_iter().collect()
}

fn main() {
    let path = Path::new("../word.lst");
    let file = match File::open(&path) {
        Err(why) => panic!("failed to open {}: {}", path.display(),
            why.description()),
        Ok(f) => f,
    };

    let mut dict: HashMap<String, Vec<String>> = HashMap::new();
    for line in BufReader::new(file).lines() {
        let s = line.unwrap();
        dict.entry(sort_str(&s)).or_insert(Vec::new()).push(s);
    }

    let sin = stdin();
    for line in sin.lock().lines() {
        let s = line.unwrap();
        if let Some(v) = dict.get(&sort_str(&s)) {
            println!("anagrams for {}: {}", &s, &v.connect(" "));
        } else {
            println!("no dice");
        }
    }
}

Rust compiler v 1.3.0 warns "use of deprecated" for ".connect" in line 31.
Seems renamed to ".join".