[Rust] AppVeyor: less powershell
[Rust] AppVeyor: less powershell

malept/hasbuildpackbundlerupgradedyet,malept/hasbuildpackbundlerupgradedyet,malept/hasbuildpackbundlerupgradedyet,malept/hasbuildpackbundlerupgradedyet,malept/hasbuildpackbundlerupgradedyet