@WG-prioritization/alerts issue #78488 has been requested for prioritization.
I-nominated
?According to a quick godbolt check, the first version with that very error is 1.30 but was that ever stabilized?
Is this issue really a regression from stable? :thinking:
I don't see how it could have ever worked, any attribute with a prefix (rstfmt::
) is not a built-in.