AWS Lambda函数在context.fail之后继续一点

I have a simple AWS Lambda function that does some validation on images saved to an S3 bucket. I'm using async.waterfall to download the image and process it, but before I even enter the first waterfall function, I do some basic validation on the event data that I am getting from my S3 PutObject trigger, specifically the size information (I have a simple AWS Lambda function that does s