warn

label_logger

Macro warn 

Source 
macro_rules! warn {
    (label: $lbl:expr, $($arg:tt)+) => { ... };
    ($($arg:tt)*) => { ... };
}
Expand description

Prints a message with the warning label

warn!("This is fine, there are only 2849 warnings, but no errors");
// "Tic Tac" will be displayed in yellow as a label
warn!(label: "Tic Tac", "run forest, run!");