fn print_table_header(tier: Tier) {
    println!("### Tier {}\n", tier.to_usize());

    println!(
        "| target triple                         | target_arch | target_os  | target_env |\n\
         |---------------------------------------|-------------|------------|------------|"
    );
}
/// Print the table headers for a particular tier
Print the table headers for a particular tier
Print the table headers for a particular tier
fn print_table_header(tier: Tier) {
    println!("### Tier {}\n", tier.to_usize());
    println!(
        "| target triple                         | target_arch | target_os  | target_env |\n\
         |---------------------------------------|-------------|------------|------------|"
    );
}
fn print_table_header ( tier : Tier ) { println ! ( " \n " tier to_usize ( ) ) ; println ! ( " \n \
 " ) ; }
Print the table headers for a particular tier
Print the table headers for a particular tier
tier
Tier
tier
Tier