What’s the de-facto way of reading and writing files in Rust 1.x?

With Rust being comparatively new, I’ve seen far too many ways of reading and writing files. Many are extremely messy snippets someone came up with for their blog, and 99% of the examples I’ve found (even on Stack Overflow) are from unstable builds that no longer work. Now that Rust is stable, what is a simple, readable, non-panicking snippet for reading or writing files?

This is the closest I’ve gotten to something that works in terms of reading a text file, but it’s still not compiling even though I’m fairly certain I’ve included everything I should have. This is based off of a snippet I found on Google+ of all places, and the only thing I’ve changed is that the old BufferedReader is now just BufReader:

use std::fs::File;
use std::io::BufReader;
use std::path::Path;

fn main() {
    let path = Path::new("./textfile");
    let mut file = BufReader::new(File::open(&path));
    for line in file.lines() {
        println!("{}", line);
    }
}

The compiler complains:

error: the trait bound `std::result::Result<std::fs::File, std::io::Error>: std::io::Read` is not satisfied [--explain E0277]
 --> src/main.rs:7:20
  |>
7 |>     let mut file = BufReader::new(File::open(&path));
  |>                    ^^^^^^^^^^^^^^
note: required by `std::io::BufReader::new`

error: no method named `lines` found for type `std::io::BufReader<std::result::Result<std::fs::File, std::io::Error>>` in the current scope
 --> src/main.rs:8:22
  |>
8 |>     for line in file.lines() {
  |>                      ^^^^^

To sum it up, what I’m looking for is:

• brevity
• readability
• covers all possible errors
• doesn’t panic