Cargo.toml

[package]
name = "geckodriver-test"
version = "0.1.0"
authors = ["MTRNord <mtrnord1@gmail.com>"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

[dependencies.fantoccini]
version = "0.17"
features = ["rustls-tls"]

[dependencies.tokio]
version = "1"
features = ["full"]

main.rs

use fantoccini::ClientBuilder;

#[tokio::main]
async fn main() -> Result<(), fantoccini::error::CmdError> {
    // Connecting using Rustls (with feature `rustls-tls`)
    let mut c = ClientBuilder::rustls()
        .connect("http://localhost:4444")
        .await
        .expect("failed to connect to WebDriver");

    println!("current url: {}", c.current_url().await?);

    let windows = c.windows().await?;

    println!("windows: {:#?}", windows);

    Ok(())
}