Rust is a statically typed, compiled language designed for systems programming. One of the main features of Rust is its ownership and borrowing systems, which ensure memory safety and prevent common programming errors such as use-after-free, double-free, and null-pointer dereference.

However, Rust does not have a garbage collector (GC) like other languages such as Java, Python, or JavaScript. This means that memory management is performed manually by the programmer, which requires more discipline and can be more error-prone.

To help with memory management, Rust provides several memory-safe abstractions such as smart pointers, reference counting, and lifetime annotations. These abstractions make it possible to write safe and efficient code without a GC.

In some cases, however, manual memory management can be too burdensome or error-prone, especially when dealing with complex data structures or large code bases. To address this issue, there are several third-party libraries that provide garbage collection in Rust, such as the gc crate and the boehm_gc crate.

The gc crate provides a tracing garbage collector that can be used with Rust's safe concurrency primitives, while the boehm_gc crate provides a conservative garbage collector that is compatible with C and C++ code. However, using a garbage collector in Rust is not recommended in general, as it can undermine the memory safety guarantees that Rust is designed to provide.

Overall, while Rust does not have a built-in garbage collector, it provides several memory-safe abstractions that can be used to write safe and efficient code without it. In cases where manual memory management is too burdensome, third-party libraries such as gc and boehm_gc can help provide garbage collection in Rust.