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I signed it.

CLAs look good, thanks!

Lgtm, but I'm not sure we want the default rules to include everything by default, though it probably costs nothing.

@acmcarther any thoughts?

Thanks for sending out this PR dforsyth@!

I don't see any reason to be opposed to this, but I would like start generating these definitions in the near future if possible. The list of platforms is quite extensive:
https://www.rust-lang.org/en-US/other-installers.html#standalone

As it stands this toolchain won't be part of the test suite and I'm not sure if it makes sense to try to add it to the suite, so I'll submit now. If you have any thoughts on that @dforsyth + @mfarrugi I'd love to hear them.