Function apply_record_server 

pub fn apply_record_server(
    home: &Path,
    pair_id: &str,
    env: &mut EnvSnapshot,
    settings: &mut Settings,
) -> Vec<ToolError>

resume talks to the server its pair was made for: the record’s server_url is applied to the settings exactly as apply_identity applies a File identity (a null value is the background service, a URL with userinfo is ignored). A missing or unreadable record changes nothing; resume itself reports that.