First clone the contract from GitHub:

$ git clone && cd erc20

Prepare your environment with the following command:

$ make prepare

If your environment is setup correctly, you will see this output:

rustup target add wasm32-unknown-unknown
info: component 'rust-std' for target 'wasm32-unknown-unknown' is up to date

If you do not see this message, check the Getting Started guide.

Next, compile your contract and run the contract unit tests.

$ make build-contracts
$ make test