Oddbean new post about login | logout You might want to learn a different language that supports async closures if that's the case.
The cost of migrating the code base is too high. The fact that rust has crazy complexity at this point and the rust developers can't seem to solve basic things like this does worry me though. Maybe rust should have remained a systems level language and not tried to be all things to all people. We need a rust-like higher-than-systems-level language that doesn't have these complexity nightmares, but is just as security proving.