Function verify_metadata_value

xtask/src/main.rs:5732–5735

(key: &str, expected: &str, field: &str)

}

fn verify_metadata_value(key: &str, expected: &str, field: &str) -> Result<()> {
    let actual = cargo_metadata_value(key)?;
    ensure_eq(&actual, expected, field)
}

fn cargo_metadata_value(key: &str) -> Result<String> {
    let text = fs::read_to_string("Cargo.toml").context("read Cargo.toml")?;