[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (release/5.3) #515

[swift-ci]

# [FAILURE] oss-swift-5.3-incremental-RA-linux-ubuntu-16_04 [#515]

Build URL: https://ci.swift.org/job/oss-swift-5.3-incremental-RA-linux-ubuntu-16_04/515/
Project: oss-swift-5.3-incremental-RA-linux-ubuntu-16_04
Date of build: Fri, 14 Aug 2020 11:38:21 -0500
Build duration: 1 hr 42 min

Changes- Commit 876d68985310b0339fd14c47a531374b1c158108 by brentdax:

[NFC] Rework serialization changes in #32811

• edit: lib/Serialization/ModuleFormat.h