Nuts to that, I expect that Rust could regularly exceed C++ in performance. Ownership as a core concept means that you get pointer aliasing information for free, which has always been Fortran's biggest advantage over C. And correct me if I'm wrong, but C++'s unique_ptr isn't guaranteed to have zero overhead at runtime, as Rust's unique pointers are.
unique_ptr should have similar performance to Rust as designed right now, but the upcoming changes to eliminate zeroing out of moved values should give Rust's unique pointers an edge over those of C++ in 1.0.
