@mgorny if I understand correctly this fell out of a change to std (github.com/rust-lang/rust/pull added trait impls to Box<str>, through normal you-can-write-it-yourself-no-intrinsics-here code) which I think gccrs wouldn't choke on (assuming gccrs has traits basically correct, anyway.)

idk I'm not a language author, just an end user who ~never sees these things. Python (since everyone worth dealing with moved to 3.x) doesn't feel better/worse from here so maybe I'm just a dumbass