### Install Rust via Rustup

Source: https://rust-lang.org/learn/get-started

The command to download and install the Rust toolchain on Unix-like systems including macOS, Linux, and WSL.

```shell
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
```

--------------------------------

### Import Crate Functionality

Source: https://rust-lang.org/learn/get-started

Example of importing a function from an external dependency into a Rust source file.

```rust
use ferris_says::say;
```

--------------------------------

### Create and Run a New Rust Project

Source: https://rust-lang.org/learn/get-started

Commands to initialize a new project directory structure using Cargo and execute the generated application.

```shell
cargo new hello-rust
cd hello-rust
cargo run
```

--------------------------------

### Manage Rust Toolchain and Projects

Source: https://rust-lang.org/learn/get-started

Common terminal commands for updating the Rust toolchain and verifying the installation of Cargo, the Rust package manager.

```shell
rustup update
cargo --version
```

--------------------------------

### Configure Dependencies in Cargo.toml

Source: https://rust-lang.org/learn/get-started

The format for adding external crates to a Rust project's manifest file to manage project dependencies.

```toml
[dependencies]
ferris-says = "0.3.1"
```

--------------------------------

### Rust Application using Ferris Says Crate

Source: https://rust-lang.org/learn/get-started

This Rust code snippet demonstrates how to use the 'ferris_says' crate to print a "Hello fellow Rustaceans!" message to the standard output. It requires the 'ferris_says' crate as a dependency. The function takes a message string and its character count to format the output.

```rust
use ferris_says::say;
use std::io::{stdout, BufWriter};

fn main() {
    let stdout = stdout();
    let message = String::from("Hello fellow Rustaceans!");
    let width = message.chars().count();

    let mut writer = BufWriter::new(stdout.lock());
    say(&message, width, &mut writer).unwrap();
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.