Memory management in Rust is a critical aspect of the programming language. Rust uses a combination of static and dynamic memory management techniques to ensure safe and efficient program execution.

In Rust, the ownership system is at the heart of memory management. Ownership refers to the set of rules that determine how Rust manages memory, how memory is allocated, and how it is deallocated once it is no longer required by the program.

Rust has several basic data types that include integers, floats, pointers, and references. These data types require different amounts of memory, and Rust manages them differently. For instance, Rust uses stack memory to allocate small-sized data types, while heap memory is used for larger data types.

Rust also includes a collection of data structures to handle memory management, such as Rust's vector, strings, and hash maps, which automatically allocate or deallocate memory dynamically at runtime, ensuring that memory is allocated according to the size of the data structure. Rust ensures that memory is used optimally by identifying unused memory and freeing it up.

Rust uses features like move semantics and borrowing rules to ensure safe memory management. A move operation transfers the ownership of the value to another variable, making it inaccessible to the original variable. On the other hand, borrowing allows temporary access to a value to carry out a specific operation, ensuring that the value is not modified elsewhere in the program.

Overall, Rust's approach to memory management is highly efficient and safe, making it an ideal language for developing high-performance systems software.