Rust stable installer for Linux, includes the source code for tools like racer.

install.sh

#!/bin/bash
#
# Installs the specified rust-stable version with the source code.
#
# The binaries are installed using the rust installer.
# They are located in /usr/local/bin.
#
# The source is installed in /usr/local/src/rust.

set -eu

uninstall() {
    if [ -f "/usr/local/lib/rustlib/uninstall.sh" ] ; then
        bash /usr/local/lib/rustlib/uninstall.sh
    fi
    if [ -d "/usr/local/src/rust" ] ; then
        rm -r "/usr/local/src/rust"
    fi
}

download() {
    if ! wget -q --show-progress -O "$2" "$1" ; then
        echo "Failed to download $1. Check your Internet connection."
        exit
    fi
}

if [ "$UID" -ne "0" ] ; then
    echo "You must run this script as root."
    exit
fi

if [ "$1" == "--uninstall" ] ; then
    uninstall
    echo "Rust has been uninstalled."
    exit
fi


version="$1"

if [ -z "$version" ] ; then
    echo "You must specify a version, e.g. './install 1.8.0' ."
    exit
fi

if [[ ! "$version" =~ ^[0-9]+.[0-9]+.[0-9]+$ ]] ; then
    echo "The specified version is invalid. The format is 'x.y.z' ."
    exit
fi

tmp=$(mktemp -d)

echo "Installing rust '$version' ..."
uninstall
echo "Downloading binaries"
download "https://static.rust-lang.org/dist/rust-$version-x86_64-unknown-linux-gnu.tar.gz" "$tmp/rust-bin.tar.gz"
echo "Downloading source"
download "https://static.rust-lang.org/dist/rustc-$version-src.tar.gz" "$tmp/rust-src.tar.gz"

echo "Installing binaries..."
tar -xzf "$tmp/rust-bin.tar.gz" -C "$tmp"
bash "$tmp/rust-$version-x86_64-unknown-linux-gnu/install.sh"

echo "Installing source..."
tar -xzf "$tmp/rust-src.tar.gz" -C "$tmp"
mkdir -p "/usr/local/src"
mv "$tmp/rustc-$version/src" "/usr/local/src/rust"

echo "Removing installation files..."
rm -r "$tmp"

echo "Installation complete!"