What is the hyperscan::Regex equivalent of regex::Regex::replace? - regex

Question

I'm rewriting this code:
use regex::Regex;
use std::fs;
use std::io;
fn main() {
let contents = fs::read_to_string("/home/jerzy/trackers_best.txt")
.expect("Something went wrong reading the file");
println!("Give me the magnet link.");
let mut magnet = String::new();
io::stdin()
.read_line(&mut magnet)
.expect("Failed to read line");
magnet = magnet.trim().to_string();
let re = Regex::new(r"\&tr=.{3,1000}").expect("Failed to initialize the variable `re`.");
magnet = re.replace(&magnet, contents).to_string();
println!("The updated magnet link:\n{}", magnet);
}
/home/jerzy/trackers_best.txt is a text file that gets automatically downloaded every evening to my home directory from https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_best.txt with the help of wget and cron.
I want to use the hyperscan crate instead of the regex crate to improve the performance.
The new code:
use hyperscan::regex::Regex;
use std::fs;
use std::io;
fn main() {
let contents = fs::read_to_string("/home/jerzy/trackers_best.txt")
.expect("Something went wrong reading the file");
println!("Give me the magnet link.");
let mut magnet = String::new();
io::stdin()
.read_line(&mut magnet)
.expect("Failed to read line");
magnet = magnet.trim().to_string();
let re = Regex::new(r"\&tr=.{3,1000}").expect("Failed to initialize the variable `re`.");
magnet = re.replace(&magnet, contents).to_string();
println!("The updated magnet link:\n{}", magnet);
}
The dependencies section of my Cargo.toml:
[dependencies]
hyperscan = "0.2.2"
This code does not compile, I get the following output from the compiler:
error[E0599]: no method named `replace` found for struct `Regex` in the current scope
--> src/main.rs:26:14
|
26 | magnet = re.replace(&magnet, contents).to_string();
| ^^^^^^^ method not found in `Regex`
How might I rewrite the line in question? What method should I use instead of .replace()?
I looked for resources about using hyperscan, but there is not much on their GitHub.