fix for un-feature-gated struct variants

[HeroesGrave]

No description provided.

[netvl]

Great, thanks!
I'm hesitant to merge right now, however. I've just updated to the latest nightlies and this change is not there yet. Travis CI seems to agree with me.
@bjz, @tomaka, what do you think? Won't it break anything?

[tomaka]

I think that most people use the nightlies instead of compiling rust master.

We have a similar PR in gl-rs right now where I said that we'd wait for the nightlies to be published.
It's usually between 7:00 and 10:00 UTC, except when there's a problem and no nightly is published at all..

[netvl]

Ok, let's wait then.
There is something strange happening on nightly buildbot, however: linux, win32, win64, mac
It looks like that today builds went fine on linux and windows, but mac builds lag behind for several days. And versions on static.rust-lang seems to be even older...

[tomaka]

The nightlies are released, I restarted the travis build.

[netvl]

Thanks!

[gchp]

This is causing errors for me on OSX, just updated via the rustup script. Should I get the nightlies some other way?

[netvl]

@gchp, it looks like buildbot for mac is stopped for some reason. It isn't building nightlies for two days already, so there are simply no fresh nightlies available for Mac. I've submitted an issue here, hopefully it is fixed soon. In the meantime, I'm afraid, you will have to compile Rust itself, or freeze rust-xml/gl-rs/other affected libraries versions by cloning their repositories, selecting appropriate commit and hardcoding their paths to ~/.cargo/config (or maybe some easier methods to select libraries revision are now available in Cargo, I don't know).

[gchp]

@netvl cool, thanks for the response! Built rust myself and it works fine.

[netvl]

@gchp, btw, mac buildbot seems to be fixed, and mac nightlies seems to be fresh.