Macro rubbl_core::rn_severe

macro_rules! rn_severe {
    ($dest : expr, $($fmt_args : expr), *) => { ... };
    ($dest : expr, $($fmt_args : expr), * ; $err : expr) => { ... };
}

Notify the user of a severe problem.

See the documentation of rn_note! for usage information. This macro should be used when an issue has been detected that makes it likely that the task at hand cannot be completed successfully; however, the program will attempt to continue.