Problem: TODOs as comments are too often forgotten or neglected

Solution: TODOs as code that triggers compile errors based on set criteria

// trigger a compile error if we're past a certain date
todo_or_die::after_date!(3000, 1, 1); // its the year 3000!

// or a GitHub issue has closed
todo_or_die::issue_closed!("rust-lang", "rust", 44265); // GATs are here!

// or the latest version of a crate matches some expression
todo_or_die::crates_io!("serde", ">1.0.9000"); // its over 9000!