Macro trace 

macro_rules! trace {
    ($($arg:tt)+) => { ... };
}

Log a trace message using format string syntax

Examples

use nonblocking_logger::{trace, trace_with, Logger};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let step = "validation";
     
    // Using global logger
    trace!("Entering {} step", step)?;
     
    // Using specific logger
    let logger = Logger::new().stdout();
    trace_with!(logger, "Entering {} step", step)?;
     
    Ok(())
}