Rust toolchain overview - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello, Rust!" using the Rust toolchain.

Rust

fn main() {
    println!([1]);
}

Drag options to blanks, or click blank then click option'

A"Hello, Rust!"

BHello, Rust!

C'Hello, Rust!'

DHello, Rust

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the double quotes around the string.

Using single quotes which are for characters, not strings.

The println! macro requires a string literal inside double quotes to print text.

2fill in blank

medium

Complete the command to build a Rust project using Cargo.

Rust

cargo [1]

Drag options to blanks, or click blank then click option'

Arun

Btest

Cbuild

Dnew

Attempts:

3 left

💡 Hint

Common Mistakes

Using cargo run when only building is needed.

Using cargo new which creates a new project.

The cargo build command compiles the current Rust project.

3fill in blank

hard

Fix the error in the Cargo.toml file to specify the Rust edition.

Rust

[package]
name = "my_project"
version = "0.1.0"
edition = [1]

Drag options to blanks, or click blank then click option'

A"2021"

B'2021'

C21

D2021

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number without quotes causes a parsing error.

Using single quotes instead of double quotes.

The edition value in Cargo.toml must be a string inside double quotes, like "2021".

4fill in blank

hard

Fill both blanks to create a new Rust project and navigate into its directory.

Rust

cargo [1] my_app
cd [2]

Drag options to blanks, or click blank then click option'

Anew

Bbuild

Cmy_app

Drun

Attempts:

3 left

💡 Hint

Common Mistakes

Using cargo build instead of cargo new to create a project.

Trying to cd into a folder that does not exist yet.

cargo new my_app creates a new project folder named my_app. Then cd my_app moves into that folder.

5fill in blank

hard

Fill all three blanks to run tests, clean build files, and update Rust toolchain.

Rust

cargo [1]
cargo [2]
rustup [3]

Drag options to blanks, or click blank then click option'

Atest

Bclean

Cupdate

Dbuild

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing cargo clean with cargo build.

Using rustup upgrade which is not a valid command.

cargo test runs tests, cargo clean removes build files, and rustup update updates Rust to the latest version.