Macro log::error

macro_rules! error {
    (target : $target : expr, $($arg : tt) +) => { ... };
    ($($arg : tt) +) => { ... };
}

Logs a message at the error level.

Examples

use log::error;

let (err_info, port) = ("No connection", 22);

error!("Error: {} on port {}", err_info, port);
error!(target: "app_events", "App Error: {}, Port: {}", err_info, 22);