Cargo dependency management in Rust - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a dependency on the "serde" crate in Cargo.toml.

Rust

[dependencies]
serde = "[1]"

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

Alatest

B1.0

Cversion

Dcargo

Attempts:

3 left

💡 Hint

Common Mistakes

Using words like 'latest' instead of a version number.

Omitting the quotes around the version number.

In Cargo.toml, dependencies are specified with their version numbers as strings, like "1.0".

2fill in blank

medium

Complete the command to add the "rand" crate as a dependency using Cargo CLI.

Rust

cargo [1] rand

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Arun

Bbuild

Cadd

Dtest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'cargo build' or 'cargo run' instead of 'cargo add'.

Forgetting to specify the crate name.

The command 'cargo add rand' adds the rand crate to your dependencies in Cargo.toml.

3fill in blank

hard

Fix the error in the Cargo.toml snippet to specify a dependency with features.

Rust

[dependencies]
regex = { version = "1", features = [[1]] }

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

A"std"

B'std'

Cstd

Dstd_feature

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes around the feature name.

Using single quotes instead of double quotes.

Features in Cargo.toml must be strings inside double quotes within the list.

4fill in blank

hard

Fill both blanks to specify a dependency from a Git repository with a branch.

Rust

[dependencies]
mycrate = [1]

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A"https://github.com/user/mycrate.git"

B{ version = "0.1" }

C{ path = "../mycrate" }

D{ git = "https://github.com/user/mycrate.git", branch = "main" }

Attempts:

3 left

💡 Hint

Common Mistakes

Using just the URL string without git key.

Specifying version instead of git for Git dependencies.

To specify a Git dependency with a branch, use a table with git URL and branch name.

5fill in blank

hard

Fill all three blanks to specify an optional dependency with default features disabled and a specific version.

Rust

[dependencies]
serde_json = [1]

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

A{ version = "1.0", default-features = false, optional = true }

B{ version = "1.0", default_features = false, optional = true }

C{ version = "1.0", default-features = true, optional = false }

D{ version = "1.0", default_features = true, optional = false }

Attempts:

3 left

💡 Hint

Common Mistakes

Using underscores instead of hyphens in keys.

Setting default-features to true when it should be false.

The correct syntax uses hyphens in keys: default-features and optional with proper boolean values.