I enjoyed a useful (and tiny) library that helps align text nicely. Following is an example of its usage:

::: {.sourcecode} rust

extern crate unindent; use unindent::unindent;

fn main() {

:

let text = "

:   A long text is beginning here and not in the previous line,
    because it wouldn't fit in comfort.

" println!("{}", unindent(text));

} :::

I submitted to small improvements to its documentation. I also contributed a style improvement to Cargo, the Rust package manager.