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: folder.rs
    path of file: ./repos/Compactor/src
    
    the code of the file until where you have to start completion: use std::collections::VecDeque;
use std::os::windows::fs::MetadataExt;
use std::path::{Path, PathBuf};
use std::time::{Duration, Instant};

use filesize::PathExt;
use globset::GlobSet;
use serde_derive::Serialize;
use walkdir::WalkDir;
use winapi::um::winnt::{
    FILE_ATTRIBUTE_COMPRESSED, FILE_ATTRIBUTE_READONLY, FILE_ATTRIBUTE_SYSTEM,
    FILE_ATTRIBUTE_TEMPORARY,
};

use crate::background::{Background, ControlToken};
use crate::persistence::pathdb;

#[derive(Debug, Clone, Serialize)]
pub struct FileInfo {
    pub path: PathBuf,
    pub logical_size: u64,
    pub physical_size: u64,
}

#[derive(Debug, Clone, Serialize, Default)]
pub struct GroupInfo {
    pub files: VecDeque<FileInfo>,
    pub logical_size: u64,
    pub physical_size: u64,
}

#[derive(Debug, Clone, Serialize)]
pub struct FolderInfo {
    pub path: PathBuf,
    pub logical_size: u64,
    pub physical_size: u64,
    pub compressible: GroupInfo,
    pub compressed: GroupInfo,
    pub skipped: GroupInfo,
}

#[derive(Debug, Clone, Serialize, Default)]
pub struct FolderSummary {
    pub logical_size: u64,
    pub physical_size: u64,
    pub compressible: GroupSummary,
    pub compressed: GroupSummary,
    pub skipped: GroupSummary,
    
    fn run(self, control: &ControlToken<Self::Status>) -> Self::Output {
        let FolderScan { path, excludes } = self;
        let mut ds = FolderInfo::new(&path);
        let incompressible = pathdb();
        let mut incompressible = incompressible.write().unwrap();
        let _ = incompressible.load();

        let mut last_status = Instant::now();

        // 1. Handle excludes separately for directories to allow pruning, while
        //    still recording accurate sizes for files.
        // 2. Ignore errors - consider recording them somewhere in future.
        // 3. Only process files.
        // 4. Grab metadata - should be infallible on Windows, it comes with the
        //    DirEntry.
        // 5. GetCompressedFileSizeW() or skip.
        let walker = WalkDir::new(&path)
            .into_iter()
            .filter_entry(|e| e.file_type().is_file() || !excludes.is_match(e.path()))
            .filter_map(|e| e.map_err(|e| eprintln!("Error: {:?}", e)).ok())
            .filter(|e| e.file_type().is_file())
            .filter_map(|e| e.metadata().map(|md| (e, md)).ok())
            .filter_map(|(e, md)| e.path().size_on_disk().map(|s| (e, md, s)).ok())
            .enumerate();

        for (count, (entry, metadata, physical)) in walker {
            let shortname = entry
                .path()
                .strip_prefix(&path)
                .unwrap_or_else(|_e| entry.path())
                .to_path_buf();

            let fi = FileInfo {
                path: shortname,
                logical_size: metadata.len().max(physical),
                physical_size: physical,
            };

            if count % 8 == 0 {
                if control.is_cancelled_with_pause() {
                    return Err(ds);
                }

                if last_status.elapsed() >= Duration::from_millis(50) {
                    last_status = Instant::now();
                    control.set_status((fi.path.clone(), ds.summary()));
                }
            }

            if fi.physical_size < fi.logical_size {
                ds.push(FileKind::Compressed, fi);
            } else if fi.logical_size <= 4096
                || metadata.file_attributes()
                    & (FILE_ATTRIBUTE_READONLY
                        | FILE_ATTRIBUTE_SYSTEM
                        | FILE_ATTRIBUTE_TEMPORARY
                        | FILE_ATTRIBUTE_COMPRESSED)
                    != 0
                || incompressible.contains(entry.path())
                || excludes.is_match(entry.path())
            {
                ds.push(FileKind::Skipped, fi);
            } else {
                ds.push(FileKind::Compressible, fi);
            }
        }

        Ok(ds)
    }