clippy 0.0.155

A bunch of helpful lints to avoid common pitfalls in Rust
Documentation 
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#![feature(plugin)]
#![plugin(clippy)]

#![warn(needless_update)]
#![allow(no_effect)]

struct S {
    pub a: i32,
    pub b: i32,
}

fn main() {
    let base = S { a: 0, b: 0 };
    S { ..base }; // no error
    S { a: 1, ..base }; // no error
    S { a: 1, b: 1, ..base };
}