use log4r::{LogLevel, Logger}; fn main() { // Initialize the logger with Debug level Logger::init(LogLevel::Debug); // Test all log levels log4r::trace!("This is a trace message - won't be printed"); log4r::debug!("This is a debug message - will be printed"); log4r::info!("This is an info message - will be printed"); log4r::warn!("This is a warning message - will be printed"); log4r::error!("This is an error message - will be printed"); // Change log level to trace to see all messages println!("\nChanging log level to Trace:"); Logger::init(LogLevel::Trace); log4r::trace!("This is a trace message - now will be printed"); }