extern crate failure;

pub mod errors {
    pub use failure::{Error, ResultExt};
    pub type Result<T> = ::std::result::Result<T, Error>;
}
pub use errors::{Result, ResultExt};

fn run() -> Result<()> {
    some_function()
        .context("we called the function but it failed ;_;")?;
    Ok(())
}

fn main() {
    if let Err(err) = run() {
        eprintln!("Error: {}", err);
        for cause in err.causes().skip(1) {
            eprintln!("Because: {}", cause);
        }
        std::process::exit(1);
    }
}