rustfmt-nightly 1.4.21

Tool to find and fix Rust formatting issues
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// rustfmt-use_try_shorthand: true

fn main() {
    let x = some_expr()?;

    let y = a
        .very
        .loooooooooooooooooooooooooooooooooooooong()
        .chain()
        .inside()
        .weeeeeeeeeeeeeee()?
        .test()
        .0
        .x;
}

fn test() {
    a?
}

fn issue1291() {
    fs::create_dir_all(&gitfiledir).chain_err(|| {
        format!(
            "failed to create the {} submodule directory for the workarea",
            name
        )
    })?;
}