boxed.rs

fn test() -> Foo {
  let i = 3;

  Foo {
    updater: Box::new(|| println!("{}", &i))
  }
}

gistfile1.txt

   Compiling luminance v0.1.0 (file:///home/phaazon/dev/luminance-rs)
src/render.rs:35:23: 35:44 error: closure may outlive the current function, but it borrows `i`, which is owned by the current function [E0373]
src/render.rs:35     updater: Box::new(|| println!("{}", &i))
                                       ^~~~~~~~~~~~~~~~~~~~~
src/render.rs:35:23: 35:44 help: run `rustc --explain E0373` to see a detailed explanation
src/render.rs:35:42: 35:43 note: `i` is borrowed here
src/render.rs:35     updater: Box::new(|| println!("{}", &i))