The "Rust Enhanced" package should be installed with Package Control. See for instructions on how to install Package Control.

After you have Package Control installed, follow these steps:

  1. Open the command palette (Control Shift P or Command Shift P) in Sublime Text.
  2. Type the command Package Control: Install Package
  3. Type the name Rust Enhanced and choose it from the list.

Installing Rust Enhanced should automatically disable the built-in Rust package.

TOML syntax highlighting

TOML syntax highlighting is provided by a separate package called TOML. It is recommended to install this for editing Cargo.toml and other TOML files. Use the Package Control: Install Package command and choose the TOML package.