Ivo Balbaert

The heap is a much larger memory part than the stack, so it is important that memory locations are freed as soon as they are no longer needed. The Rust compiler sees when a variable ends its lifetime (or in other words, goes out of scope) and inserts a code at compile time to free its memory when the code is executed. This behavior is unique to Rust and is not present in other commonly used languages.

The infamous goto from C does not exist in Rust!