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/cargo-multivers/multivers-runner/src
    
    the code of the file until where you have to start completion: use std::convert::Infallible;
use std::io::{Read, Write};

use bzip2::read::BzDecoder
    
    fn extract_into() {
        let expected_data = b"data that will be compressed";
        let mut encoder = BzEncoder::new(expected_data.as_slice(), Compression::best());
        let mut compressed = vec![];
        encoder.read_to_end(&mut compressed).unwrap();

        let build = Build {
            compressed: &compressed,
            features: &[],
            source: None,
        };
        let mut decompressed_data = vec![];
        build.extract_into(&mut decompressed_data).unwrap();
        assert_eq!(&decompressed_data, &expected_data);
    }