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: cross_publish.rs
    path of file: ./repos/cargo/tests/testsuite
    
    the code of the file until where you have to start completion: //! Tests for publishing using the `--target` flag.

use std::fs::File;

use cargo_test_support::{cross_com
    
fn simple_cross_package() {
    if cross_compile::disabled() {
        return;
    }
    let p = project()
        .file(
            "Cargo.toml",
            r#"
                [package]
                name = "foo"
                version = "0.0.0"
                edition = "2015"
                authors = []
                license = "MIT"
                description = "foo"
                repository = "bar"
            "#,
        )
        .file(
            "src/main.rs",
            &format!(
                r#"
                    use std::env;
                    fn main() {{
                        assert_eq!(env::consts::ARCH, "{}");
                    }}
                "#,
                cross_compile::alternate_arch()
            ),
        )
        .build();

    let target = cross_compile::alternate();

    p.cargo("package --target")
        .arg(&target)
        .with_stderr(
            "\
[PACKAGING] foo v0.0.0 ([CWD])
[VERIFYING] foo v0.0.0 ([CWD])
[COMPILING] foo v0.0.0 ([CWD]/target/package/foo-0.0.0)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]
[PACKAGED] 4 files, [..] ([..] compressed)
",
        )
        .run();

    // Check that the tarball contains the files
    let f = File::open(&p.root().join("target/package/foo-0.0.0.crate")).unwrap();
    publish::validate_crate_contents(
        f,
        "foo-0.0.0.crate",
        &["Cargo.lock", "Cargo.toml", "Cargo.toml.orig", "src/main.rs"],
        &[],
    );
}