Hi, I've been preparing clamav upload for stable and noticed that one of its rust bits requires rustc 1.87.0. There was once rust-web but this is gone now. I could try to downgrade it but there was a bug against an earlier version where it failed to read (some) .tiff files and fix was a newer rust component for it. Wouldn't be surprised if something similar did happen for jpeg, too (the package asking for newer rustc is zune-jpeg).
The NEWS file for 1.4.4 mentiones rustc 1.87 as the minimum. I guess the only way forward is via -bpo? Sebastian

