Sub-Schema only shows '[object Object]'

[Darin Hensley]

Here is my schema:

var CpuSchema = new Schema({
    timestamp : { type : Date, index: true },
    available : Boolean,
    status : String,
    metrics : [ { duration : String,
        data : Number,
        type : String,
        unit : String
    } ,
    { duration : String,
        data : Number,
        type : String,
        unit : String
    },
    { duration : String,
        data : Number,
        type : String,
        unit : String
    }
    ]
});

But when I do a query and have a document returned, I get: 

[ { _id: 53b6d3629074ad2e59e4be6f,
    timeStamp: Fri Jul 04 2014 16:16:38 GMT+0000 (UTC),
    available: true,
    status: 'n',
    __v: 0,
    metrics: [ '[object Object]', '[object Object]', '[object Object]' ] } ]

metrics: [ '[object Object]', '[object Object]', '[object Object]'

is unusable. What am I doing wrong and how do I make it look like the below? 

{ timestamp: 1404486663348,
  available: true,
  status: 'success',
  metrics:
   { '15m': { data: 0.05, type: 'n', unit: 'unknown' },
     '5m': { data: 0.01, type: 'n', unit: 'unknown' },
     '1m': { data: 0, type: 'n', unit: 'unknown' } } }

[Valeri Karpov]

Are you using `console.log`? Perhaps use `util.inspect` instead?