How to push to Vec inside closure

main.rs

use std::{
    path::Path,
    process::{Command, Stdio},
};

use async_trait::async_trait;
use downloader::download_files;
use downloader::Asset;
use extract::{ExtractInput, Extractor};
use libs::owo_colors::{colors, OwoColorize};
use libs::rayon::prelude::*;
use libs::wax::{Glob, WalkEntry, WalkError};
use regex::Regex;
use std::fs;

...

let glob = Glob::new("**/docs_assets_pv1/**/*.html").unwrap();
let files: Vec<Result<WalkEntry, WalkError>> = glob.walk(args.outdir).collect();
let webassets_regex =
    Regex::new(r#"(?P<weba>webassets/avalon/d/.*?)["'\)\]\s]"#).unwrap();
let src_prefix = "https://access.redhat.com/";
let dest_prefix = format!("{}/static/", args.outdir);
let assets: Vec<Asset> = vec![];

// Parallel interate over all the docs files and find file link matches e.g. webassets/avalon/d/*
files.into_par_iter().for_each(move |entry| {
    let entry = entry.unwrap();

    // Read the file
    let content = fs::read_to_string(entry.path())
        .expect("Something went wrong reading the file");

    for capture in webassets_regex.captures_iter(content.as_str()) {
        let src = format!("{}{}", src_prefix, &capture["weba"]);
        let dest = format!("{}{}", dest_prefix, &capture["weba"]);
        let asset = Asset { src, dest };
        assets.push(asset);

        // println!("src: {}", src);
        // println!("dest: {}", dest);
    }
});

...