I was a little bummed to see the pass manager being held back. I wish there was a flag you could pass to rustc to go ahead and use it now while only making it t

I was a little bummed to see the pass manager being held back. I wish there was a flag you could pass to rustc to go ahead and use it now while only making it the default in 1.57 (or at least I haven't heard of being able to do that).