You should use the objc2 crate instead, as it is more actively maintained.
loafjective-c is a Rust crate that allows its users to send messages to Objective C objects. It was created due to grievances that I had with the [objc] crate.
Distributed under the Boost Software License, Version 1.0. See [LICENSE] for details, or copy at [http://www.boost.org/LICENSE_1_0.txt].