Function cargo_edit::get_latest_dependency

pub fn get_latest_dependency(
    crate_name: &str, 
    flag_allow_prerelease: bool, 
    manifest_path: &Path, 
    registry: &Option<Url>
) -> Result<Dependency>

Query latest version from a registry index

The registry argument must be specified for crates from alternative registries.

The latest version will be returned as a Dependency. This will fail, when

• there is no Internet connection and offline is false.
• summaries in registry index with an incorrect format.
• a crate with the given name does not exist on the registry.