The translation from Rust to underlying machine code is straightforward and predictable. If needed, you have options to control the low-level details of how your application works.
What are some of the ways that we make Rust feel transparent?
Rust strives to avoid features that impose global costs (that is, impose a runtime cost even on projects that don't use them). This is a key part of Stroustroup's definition of zero-cost abstractions, "What you don't use, you don't pay for". This is the mechanism that encourages us to use ownership instead of a garbage collector, for example, since if any part of the code uses a garbage collector, call code can easily pay the price in terms of having to be scanned and so forth.