Map ouput of capabilities

plugins/commands/serve/client/capability_platform.rb

@@ -60,7 +60,12 @@ module VagrantPlugins
               args: arg_protos,
             )
           )
-          client.capability(req)
+          result = client.capability(req)
+          if result.result.nil?
+            return nil
+          end
+          unmapped = mapper.map(result.result)
+          unmapped
         end
       end
     end

plugins/commands/serve/service/capability_platform_service.rb

@@ -108,10 +108,9 @@ module VagrantPlugins
               )
             end
 
-            val = Google::Protobuf::Value.new
-            val.from_ruby(result)
+            val = mapper.map(result, to: Google::Protobuf::Any)
             SDK::Platform::Capability::Resp.new(
-              result: Google::Protobuf::Any.pack(val)
+              result: val
             )
           end
         end

plugins/commands/serve/service/communicator_service.rb

@@ -212,8 +212,6 @@ module VagrantPlugins
             exit_code = communicator.execute(cmd.command, opts) {
               |type, data| output[type] << data if output[type]
             }
-            logger.debug("command exit code: #{exit_code}")
-            logger.debug("command output: #{output}")
 
             SDK::Communicator::ExecuteResp.new(
               exit_code: exit_code,