DescribeStackEvents Exception Occurs During Build and Delete #683

The following exception is thrown during build and delete stages:

botocore.exceptions.ClientError: An error occurred (ValidationError) when calling the DescribeStackEvents operation: Stack [myStack] does not exist

it appears that stacker attempts to call DescribeStackEvents before the stack has actually started creating during stacker build. Stacker also appears to call DescribeStackEvents after the stack has already been deleted during stacker delete.

This doesn't actually cause either of the commands to completely fail but it just throws in exception and the message is displayed in stdout.