fn main() {
    let token = "-lfoo";
    if token.starts_with("-l") {
        let libname = &token[2..];
        println!("Library name: {libname}");
    }
}

The above code generates this warning with a suggestion:

Note how the new code uses <stripped> instead of a real variable name. This might be a bit confusing, especially to the new users. I propose to add a bit more extra logic for this common case:

• if the result is assigned to a new variable, use that binding's name directly in the Some expression

This will modify the suggestion from

if let Some(<stripped>) = token.strip_prefix("-l") {
   let libname = <stripped>;

to this

if let Some(libname) = token.strip_prefix("-l") {