hi, on a fresh current amd64 I had to set up dpb because it seems
there was a libc bump at the wrong time for me :)

however, now I have my working dpb (easy to setup once you understand
it), I don't understand why dpb -R something_depending_on_rust
always have to recompile lang/rust, in the packages directory, only
the rust bootstrap package is changed everytime I run dpb.

I'm not sure which logs I could provide though. This is quite
annoying because lang/rust is heavy to compile and I like to trigger
dpb every time I try a diff.

Am I the only one with this issue?