You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: wasi_sees_virtual_root.rs
    path of file: ./repos/wasmer/tests/wasi-wast/wasi/tests
    
    the code of the file until where you have to start completion: // WASI:
// mapdir: act1:test_fs/hamlet/act1
// mapdir: act2:test_fs/hamlet/act2
// mapdir: act1-again:test_fs/hamlet/act1

use std::fs;

fn main() {
    // just cheat in this test because there is no comparison for native
    #[cfg(not(target_os = "wasi"))]
    let results = {
        let start = vec!["\"/act1\"", "\"/act1-again\"", "\"/act2\""];

        let mut out = vec![];
        for _ in 0..4 {
            for path_str in &start {
                out.push(path_str.to_string());
            }
        }

        out.push("ROOT IS SAFE".to_string());
        out
    };

    #[cfg(target_os = "wasi")]
    let results = {
        let mut out = vec![];

        let read_dir = fs::read_dir("/").unwrap();
        for entry in read_dir {
            out.push(format!("{:?}", entry.unwrap().path()))
        }
        let read_dir =
    
fn main() {
    // just cheat in this test because there is no comparison for native
    #[cfg(not(target_os = "wasi"))]
    let results = {
        let start = vec!["\"/act1\"", "\"/act1-again\"", "\"/act2\""];

        let mut out = vec![];
        for _ in 0..4 {
            for path_str in &start {
                out.push(path_str.to_string());
            }
        }

        out.push("ROOT IS SAFE".to_string());
        out
    };

    #[cfg(target_os = "wasi")]
    let results = {
        let mut out = vec![];

        let read_dir = fs::read_dir("/").unwrap();
        for entry in read_dir {
            out.push(format!("{:?}", entry.unwrap().path()))
        }
        let read_dir = fs::read_dir("act1/..").unwrap();
        for entry in read_dir {
            out.push(format!("{:?}", entry.unwrap().path()))
        }
        let read_dir = fs::read_dir("act1/../../..").unwrap();
        for entry in read_dir {
            out.push(format!("{:?}", entry.unwrap().path()))
        }
        let read_dir = fs::read_dir("act1/../../act2/../act1/../../../").unwrap();
        for entry in read_dir {
            out.push(format!("{:?}", entry.unwrap().path()))
        }
        let f = fs::OpenOptions::new().write(true).open("/abc");

        if f.is_ok() {
            out.push("ROOT IS NOT SAFE".to_string());
        } else {
            out.push("ROOT IS SAFE".to_string());
        }

        out
    };

    for result in results {
        println!("{}", result);
    }
}