Here is the stack trace that did not cause the build to abort:
Creating Cloud Formation stack: test-simple-deploy
75125240-ffea-11e0-ab51-508be050d086 - AWS::CloudFormation::Stack - CREATE_IN_PROGRESS - User Initiated
InstanceSecurityGroup-1319644330000 - AWS::EC2::SecurityGroup - CREATE_IN_PROGRESS - null
InstanceSecurityGroup-1319644334000 - AWS::EC2::SecurityGroup - CREATE_FAILED - Unsupported IP protocol "http" - supported: [tcp, udp, icmp]
7d1cbb60-ffea-11e0-b8e8-5081b017bc4b - AWS::CloudFormation::Stack - ROLLBACK_IN_PROGRESS - The following resource(s) failed to create: [InstanceSecurityGroup]
Failed to create stack: test-simple-deploy. Reason: The following resource(s) failed to create: [InstanceSecurityGroup]