use std::path::PathBuf;

use std::path::{Path, PathBuf};

            let target = std::fs::canonicalize(&target)?;

            let r = Rename {
                source: &source,
                target: &target,
            };
            std::fs::rename(r.source, r.target)?;
            let target = std::fs::canonicalize(r.target)?;

            std::fs::rename(&source, &target)?;

            std::mem::forget(r);

}
struct Rename<'a> {
    source: &'a Path,
    target: &'a Path,

impl<'a> Drop for Rename<'a> {
    fn drop(&mut self) {
        std::fs::rename(self.target, self.source).unwrap_or(())
    }
}