[Pkg-rust-maintainers] Bug#1065587: rust-polling: Please try to rebuild rust-polling for loong64

[Peter Green]

> I have built the rust-polling successfully in my local loong64 
> environment, without modifications required.

Make sure you are not using DEB_BUILD_OPTIONS=nocheck

since rust crates don't have stable ABIs and cargo doesn't support
pre-built rust crates, librust* packages contain source code rather
than binaries of any sort.

The package build process does a test build to check that the code
is actually buildable before packaging but this is skipped if
DEB_BUILD_OPTIONS=nocheck is set.

> 
> Please try to rebuild rust-polling for loong64 in the Debian Package 
> Auto-Building environment.

It failed again.

I've taken a quick look at the code, but I'm not seeing anything
obvious. The definitions in linux-raw-sys seem to exist, at least
accoding to the error messages. I notice that the reexports of those
definitions are gaurded behind a target_pointer_bits guard, it may
be worth checking if rustc is setting that correctly on your
architecture (though if it isn't, I'd expect that to cause a lot
of problems)