Recently I tried out rr, the time travelling debugger. It blew my mind. I never imagined you could just run until an assertions fails, set a breakpoint on the v

Recently I tried out rr, the time travelling debugger. It blew my mind. I never imagined you could just run until an assertions fails, set a breakpoint on the variable the assertion checks, and the run backwards until the last time the variable was modified. Shameless plug: If you're writing rust I wrote a tiny wrapper that finds the appropriate binaries and provides the right config to make it as easy as `cargo rr test my_test`. https://crates.io/crates/cargo-rr https://crates.io/crates/cargo-rr