Getting started with Rust

Rust is a powerful programming language known for performance and reliability, but learning it as a beginner can feel overwhelming at first.

In this beginner guide, we share our perspective on the early stages of learning Rust and resources that can support you along the way. We hope this overview makes the first steps clearer and helps you build your Rust skills using JetBrains tools.

In this guide you will find

  1. Rust basics and core concepts
  2. Step-by-step learning path
  3. Rust and other programming languages
  4. RustRover learning features
  5. Common beginner mistakes
  6. Common questions when learning Rust
  7. Frequently asked questions

Rust basics and core concepts

Rust is a compiled programming language designed to help you write fast, reliable software without sacrificing safety. It is commonly used for systems programming, backend services, embedded development, and performance-critical applications.

Rust enforces strict rules around memory and concurrency at compile time, which helps prevent entire classes of bugs before software is ever deployed.

Why Rust is popular

Rust is popular because it helps developers learn and write reliable code with confidence. The language is designed to catch many mistakes at compile time, before the program runs. Rust surfaces problems early and clearly, making it easier to understand what is happening in your code.

It also has an active community and a growing ecosystem of tools that support the learning process. While Rust has a steep learning curve, these resources help developers gradually build confidence and apply the language to real-world projects

What Rust is used for

Rust is used to build tools and systems where performance, reliability, and efficiency matter. Many popular developer tools, such as ripgrep, are written in Rust because it’s fast and dependable. ripgrep is a command-line search tool widely used by developers to quickly search through large codebases. Parts of the Linux kernel now include Rust to improve memory safety in low-level components.

The language is also used in cloud infrastructure, networking libraries, and asynchronous systems. Projects like Tokio, an asynchronous runtime for Rust, provide the building blocks for high-performance network services. It offers features such as an event-driven runtime, asynchronous I/O, and task scheduling. This makes it easier to build scalable servers and distributed systems.

Rust is also gaining adoption in distributed systems and blockchain platforms, such as Solana, where performance and security are critical. Rust’s memory safety guarantees and absence of a garbage collector make it well-suited for building high-performance infrastructure and secure smart contracts that have to handle demanding workloads.


What makes Rust challenging for beginners

Many developers find Rust challenging at first when learning it, because it introduces concepts such as ownership, borrowing, and lifetimes, which make it different from other languages. These concepts define who owns a piece of data, how it can be shared, and how long it is allowed to exist. These ideas change how you think about memory and data sharing, especially if you are coming from languages such as Java, Python, or JavaScript, where memory management is handled automatically.

Early compiler errors are common and expected. The most effective way to move forward is to start with small examples, read the compiler messages carefully, and practice regularly.

Over time, these concepts become natural. They don’t just make code easier to understand and maintain; they also make it safer to evolve. Strong static analysis and clear ownership rules give you confidence when refactoring, renaming, or restructuring parts of your program. Many changes that would feel risky in other languages are checked and validated at compile time.

Rust concepts explained

Rust programs are organized into functions grouped in modules. Functions work with values that are statically typed, meaning every value or expression has a defined type at compile time.

The language provides both primitive and compound types (like arrays and structs), while the standard library adds many collection types. Rust also supports generics for defining reusable, type-independent code and traits. These traits create groups of methods that can be implemented for specific types.

Together, generics and traits give Rust the same level of abstraction as object-oriented languages with inheritance and polymorphism.

Memory management

Rust’s memory management is built on a simple rule: The compiler knows exactly when memory is allocated, accessed, and released. It automatically inserts the necessary instructions into the code, preventing common memory issues found in other languages.

Unlike garbage-collected languages like JavaScript, Python, or Java, Rust does not rely on a runtime garbage collector, saving runtime overhead and ensuring both safety and performance.


Concurrency

Concurrency enables a system to perform multiple tasks at once, improving efficiency and performance. In many languages, this can easily lead to hard-to-debug errors when different parts of a program run at the same time and access shared data.

In Rust, concurrency is built on the same ownership and type system that ensures memory safety. Early in design, the team treated memory safety and concurrency as separate challenges. Over time, they discovered that the ownership and type systems form a powerful foundation for solving both.

Instead of addressing memory bugs and concurrency bugs with different mechanisms, Rust handles them through one consistent model. The same rules that govern how data is owned and borrowed also help avoid data races and other common concurrency issues.

Rust helps catch many of these problems early, before your program ever runs. That’s why users often describe Rust’s concurrency as fearless.

Among other reasons, this approach is possible because

  • Ownership rules help ensure that data shared between tasks is used safely.
  • Immutable data makes it easier to reason about code that runs in parallel.
  • Passing data between tasks using channels reduces the need for shared mutable state.
  • Rust’s memory and lifetime system prevents many common concurrency mistakes at compile time.
  • Async programming lets you write concurrent code in a clear and structured way, without relying on complex patterns.

This explains why Rust can guarantee safety and performance without a garbage collector.

Writing code with functions, values, and types. For many developers, this is the most familiar part of learning Rust, since functions, values, and types are common across many languages.

Your first steps in Rust

Start learning with confidence

When starting something new, it’s always easier to have a plan to follow. Here is our suggested path for getting started with Rust and learning it step by step, based on our experience.

Rust vs. Python, JavaScript, and other programming languages

Rust is rarely the first programming language developers learn. Most people who come to Rust already have experience with JavaScript, TypeScript, Python, Java, C, or C++, and start exploring Rust alongside the tools and technologies they already know.

If you are coming to Rust from another language, these guides can help you compare Rust with familiar ecosystems and understand where it fits best.

Rust and JavaScript

Learn how Rust and JS/TS work together through WebAssembly, tooling, and hybrid web architectures.

Rust and C/C++

Compare Rust with C and C++ for systems programming, memory safety, performance, and long-term maintainability.

Rust and Java

Compare Rust and Java for backend development, performance, memory safety, tooling, and long-term maintainability.

Learning Rust often involves running into new kinds of errors during practice. These mistakes are a normal part of the process and usually signal that you are engaging with important concepts about memory and data flow.

Many of these errors are closely connected, as they stem from the same model of Rust’s ownership system. This means that once you start understanding that model, the way you approach and resolve these issues becomes more consistent and predictable.

Below are some of the most common challenges beginners face, along with details about how the right tooling can help make them easier to understand.

Common beginner mistakes and how RustRover helps you avoid them

Ownership errors

Ownership defines what parts of the code are allowed to access and modify data at any point in a Rust program. Beginners often run into errors when values are moved unexpectedly or when multiple parts of the code try to use the same data. These errors exist to prevent memory bugs. Clear compiler messages and editor hints in RustRover can help you see where ownership changes and understand why the code is not allowed.

Borrow checker issues

The borrow checker ensures that references do not conflict with each other. Errors commonly appear when mutable and immutable borrows overlap. While these rules can feel restrictive, they help prevent data races and invalid memory access. Tooling support can make these situations easier to understand by pointing to overlapping borrows and showing how references interact.

Lifetime confusion

Lifetimes describe how long references are valid and make sure they never outlive the data they point to. New Rust users can struggle with lifetime errors because the rules are enforced implicitly by the compiler. Helpful explanations and in-editor guidance make it easier for you to understand these relationships without having to manually trace reference scopes.

Depending on your setup and the languages you already use, several JetBrains IDEs can support Rust in different ways. If you want to try these workflows yourself, you can explore the other JetBrains IDEs below:

RustRover

RustRover

A dedicated JetBrains IDE for Rust development

CLion

CLion

A cross-platform JetBrains IDE for C and C++ development

IntelliJ IDEA

IntelliJ IDEA Ultimate

A full-featured JetBrains IDE for Java, Kotlin, and polyglot development


RustRover learning features

RustRover offers a variety of features that help you learn Rust and explore it while you code.

Error highlighting

RustRover highlights syntax, type, and compiler-related issues directly in the editor. Seeing errors in context helps you understand problems earlier and connect them to the code you are writing.

Refactoring

Refactoring tools make it possible to rename symbols, extract functions, and reorganize code safely. This supports experimentation and learning without compromising correctness.

Testing support

Built-in functionality for running tests and debugging helps you validate assumptions and understand how changes affect behavior. Clear feedback makes tests a practical learning tool, not just a verification step.

Debugger

Step through your program line by line and observe how it behaves at runtime. You can inspect variables, follow the execution flow, and see how different parts of your code interact. This helps turn theory into practice and makes it easier to understand how your Rust programs actually work.

Borrow-checker insights

Ownership, borrowing, and lifetime-related issues are surfaced inline. Visual cues and navigation help you understand how references interact across your code and why certain patterns are not allowed.

Code completion and navigation

Context-aware code completion and fast navigation help you explore APIs, types, and traits as you learn. This reduces the need to switch constantly between code and documentation.

Junie

Junie is an AI coding agent by JetBrains that supports Rust development by helping you explore code, understand context, and work through implementation ideas. It can give you a leg up when learning new patterns or working with unfamiliar code while allowing you to stay focused on problem-solving.

Documentation and quick help

Inline documentation, type information, and quick-help views make it easier to understand unfamiliar constructs and library APIs while staying focused on the code.

AI Assistant

AI Assistant can help explain compiler errors, Rust concepts, and code behavior. This is useful when you’re learning new patterns, working through feedback from the compiler, or trying to understand why a particular approach is discouraged.

Claude Agent, Codex, and external ACP-compatible agents

In the AI chat, you can also work with Claude Agent, Codex, and external ACP-compatible agents. This gives you more flexibility when you want to compare approaches, use a preferred agent, or bring other compatible tools into your workflow.

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