Since this builds on zero.rs, there are some limitations.<p><a href="https://github.com/pcwalton/zero.rs" rel="nofollow">https://github.com/pcwalton/zero.rs</a><p><pre><code> Garbage collection, tasks, and failure will not work. All
the other language features, including unique pointers,
references, and closures do work, so programs such as
sprocketnes that do not use garbage collection should be
fine.
The Rust standard library cannot be used in this mode,
but splitting out the Rust standard library into a
portion that can be used in freestanding mode would be an
interesting and valuable project (IMO).</code></pre>