With our rust project we actually compile with `01` because the cost of that optimization pass is less than the cost to our tests running 100x slower. There is

With our rust project we actually compile with `01` because the cost of that optimization pass is less than the cost to our tests running 100x slower. There is definitely a need for a 'more optimal' debug mode, and it is one of those things that feels zero cost until it isn't. Similarly, I try to at least consider compile times when writing code these days.