FWIW, you can avoid allocation in Rust by limiting yourself to libcore, which doesn't know about allocation. Stick the #![no_implicit_prelude] attribute on your

FWIW, you can avoid allocation in Rust by limiting yourself to libcore, which doesn't know about allocation. Stick the #![no_implicit_prelude] attribute on your module and now you can't use anything from liballoc or libstd without an explicit `use` directive.