rust vs rust-bin

[Nikita Gillmann <nikita%NetBSD.org@localhost>]

Hi,

I want to test why bulkbuild does not recognize my tor with rust option.

in my mk.conf I have (older entries):

PKG_OPTIONS.rust+=rust-llvm
PKG_OPTIONS.tor+=rust

I don't know why but a recent upgrade installed rust-bin as preference 
over rust (dependency conflict).
I'd like to keep it that way.

make in net/tor then goes on to fail to discover a lang/rust install and 
tries to build rust.

Can this behavior be prevented? rust-bin should be equal (in my case 
higher version in -bin) to the rust build from source in what they 
provide (rust).