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: build.rs
    path of file: ./repos/windmill/backend/windmill-worker
    
    the code of the file until where you have to start completion: use deno_fetch::FetchPermissions;
use deno_web::{BlobStore, TimersPermission};
use std::env;
use std::path::PathBuf;
use std::sync::Arc;

pub struct PermissionsContainer;

impl FetchPermissions for PermissionsContainer {
    #[inline(always)]
    fn check_net_url(
        &mut self,
        _url: &deno_core::url::Url,
        _api_name: &str,
    ) -> Result<(), deno_core::error::AnyError> {
        Ok(())
    }

    #[inline(always)]
    fn check_read(
        &mut self,
        _p: &std::path::Path,
        _api_name: &str,
    ) -> Result<(), deno_core::error::AnyError> {
        Ok(())
    }
}

impl TimersPermission for PermissionsContainer {
    #[inline(always)]
    fn allow_hrtime(&mut self) -> bool {
        true
    }
}

deno_core::extension!(
    fetch,
  
    
fn main() {
    println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
    println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());

    let exts = vec![
        deno_webidl::deno_webidl::init_ops_and_esm(),
        deno_url::deno_url::init_ops_and_esm(),
        deno_console::deno_console::init_ops_and_esm(),
        deno_web::deno_web::init_ops_and_esm::<PermissionsContainer>(
            Arc::new(BlobStore::default()),
            None,
        ),
        deno_fetch::deno_fetch::init_ops_and_esm::<PermissionsContainer>(Default::default()),
        fetch::init_ops_and_esm(),
    ];

    // Build the file path to the snapshot.
    let o = PathBuf::from(env::var_os("OUT_DIR").unwrap());
    let snapshot_path = o.join("FETCH_SNAPSHOT.bin");

    // Create the snapshot.
    let _ = deno_core::snapshot_util::create_snapshot(
        deno_core::snapshot_util::CreateSnapshotOptions {
            cargo_manifest_dir: env!("CARGO_MANIFEST_DIR"),
            snapshot_path: snapshot_path,
            startup_snapshot: None,
            extensions: exts,
            compression_cb: None,
            with_runtime_cb: None,
            skip_op_registration: false,
        },
        None,
    );
}