Macro log_assert_eq 

macro_rules! log_assert_eq {
    ($left:expr, $right:expr) => { ... };
    ($left:expr, $right:expr,) => { ... };
    ($left:expr, $right:expr, $($arg:tt)+) => { ... };
}

Will log and panic when condition not met.

The arguments are like core::assert_eq!().

Examples:

use captains_log::*;
log_assert_eq!(1, 1);
log_assert_eq!(1, 1, "impossible things happened");