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: compile.rs
    path of file: ./repos/wing/libs/wingc/examples
    
    the code of the file until where you have to start completion: // Compiles a source file and prints any errors to stderr.
// Th
    
pub fn main() {
	let args: Vec<String> = env::args().collect();

	if args.len() < 2 {
		panic!("Usage: cargo run --example compile <source_file>");
	}

	let source_path = Utf8Path::new(&args[1]).canonicalize_utf8().unwrap();
	let target_dir: Utf8PathBuf = env::current_dir().unwrap().join("target").try_into().unwrap();

	let results = compile(source_path.parent().unwrap(), &source_path, None, &target_dir);
	if results.is_err() {
		let mut diags = get_diagnostics();
		// Sort error messages by line number (ascending)
		diags.sort();
		eprintln!(
			"Compilation failed with {} errors\n{}",
			diags.len(),
			diags.iter().map(|d| format!("{}", d)).collect::<Vec<_>>().join("\n")
		);
		process::exit(1);
	}
}