问为什么需要管理员权限才能在Windows上创建符号链接？

EN

use std::os::windows::fs;
// https://doc.rust-lang.org/std/os/windows/fs/fn.symlink_file.html

use std::io::*;
use std::io::{self, Read, Stdin};

fn input_from() -> io::Result<()> {
    let mut buffer = String::new();
    let mut stdin = io::stdin(); // We get `Stdin` here.
    stdin.read_to_string(&mut buffer)?;
    Ok(())
}

fn main() -> std::io::Result<()> {
    let mut shortcut_dir = String::from("D:\\winr\\");

    println!("Your script path:");
    let mut buffer1 = String::new();
    let mut stdin = io::stdin();
    stdin
        .read_line(&mut buffer1)
        .expect("error: unable to read user input");

    buffer1.pop();

    println!("Your shortcut name:");
    let mut buffer2 = String::new();
    let mut stdin: Stdin = io::stdin();

    stdin
        .read_line(&mut buffer2)
        .expect("error: unable to read user input");

    println!("buffer1 is:{:?}", buffer1);

    buffer2.pop();

    let mut buffer2 = &buffer2[..];

    println!("buffer2 is:{:?}", buffer2);

    shortcut_dir.push_str(&buffer2);

    let mut buffer3 = shortcut_dir;

    println!("buffer3 is:{:?}", buffer3);

    fs::symlink_file(buffer1, buffer3)?;

    Ok(())
}

Error: Os { code: 1314, kind: Other, message: "A required privilege is not held by the client" }
error: process didn't exit successfully: `target\debug\ssdkqn.exe` (exit code: 1)