i had to do 4 changes for the update:

1. i had to enable the "pipe" and "process" features. i think those were enabled by a transitive dependency on rustix, that had already enabled them, but since those were enabling them for rustix 0.38, i had to enable them explicitly for rustix 1.0.
2. similar to update to rustix 1.0 and bump linux-raw-sys drm-rs#223, i had to change the generic for rustix::ioctl from a type to a const.
3. rustix::event::poll changed the type from a c_int to an Option<&Timespec>. since the timeout was 0, i don't have to convert anything and only construct a 0-ed Timespec. i opted against using Timespec::default as i thought that doing it this way was more clear.
4. rustix merged all of the rustix::net::bind_* fns into a single rustix::net::bind that takes an &impl SocketAddrArg

as far as i can tell, none of the "silent behavior changes" mentioned in rustix's CHANGES.md apply here.

i tested this locally with my own compositor and everything worked just fine (though i don't use all of smithay there).

i realised that i forgot some functions that were not compiled on linux. in the second commit in [a2171c8], i (attempt to) fix the rustix errors for non-linux, non-android and non-freebsd targets, but i cannot actually check if they are working, as i do not have access to an openbsd machine or similar. additionally, i believe that function already doesn't compile, as it was forgotten to be updated when rand got bumped in #1703.