How do i det output of a automation job?

I start an automation job as part of nested deployment and I'm looking for a way of getting the output of the job. I'm trying to do the following

` "outputs": {
"vmName": {
"value": "[reference('subscriptions/{guid}/resourceGroups/VMGroup/providers/Microsoft.Automation/automationAccounts/firstTestAcct/jobs/deaa4f2a-7869-4161-b47b-06cfb2782391/streams','2015-10-31')]",
"type": "object"
}`

but it fails with the following
` "error": {
"code": "InvalidResourceNamespace",
"message": "The resource namespace 'subscriptions' is invalid."
}`

but when I do
` "outputs": {
"vmName": {
"value": "[reference('subscriptions/{guid}/resourceGroups/VMGroup/providers/Microsoft.Automation/automationAccounts/firstTestAcct/jobs/deaa4f2a-7869-4161-b47b-06cfb2782391,'2015-10-31')]",
"type": "object"
}`

it returns some object.

on the other hand when I reference a full stream uri, it returns what I need

` "outputs": {
"vmName": {
"value": "[reference('/subscriptions/{guid}/resourceGroups/VMGroup/providers/Microsoft.Automation/automationAccounts/firstTestAcct/jobs/deaa4f2a-7869-4161-b47b-06cfb2782391/streams/deaa4f2a-7869-4161-b47b-06cfb2782391_00636250215808263202_00000000000000000002','2015-10-31')]",
"type": "object"
}`

So the question is how to get the output of an automation job and return it back to a master deployment

No repository file or test is named. Start by tracing the ARM template expressions in the issue and checking how Azure Automation job and stream resources are referenced in nested deployments. Done means identifying a supported way to retrieve the job output and return it to the master deployment.

Written by the indexing model from the issue text.