[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master-rebranch) #491

[swift-ci]

# [FAILURE] oss-swift-master-rebranch-swift-incremental-RA-linux-ubuntu-16_04 [#491]

Build URL: https://ci.swift.org/job/oss-swift-master-rebranch-swift-incremental-RA-linux-ubuntu-16_04/491/
Project: oss-swift-master-rebranch-swift-incremental-RA-linux-ubuntu-16_04
Date of build: Wed, 26 Aug 2020 04:06:04 -0500
Build duration: 2 hr 0 min

Identified problems:- Compile Error: This build failed because of a compile error. Below is a list of all errors in the build log:

• Indication 1
• Swift Compile Error: Swift compiler error
  • Indication 1

Changes- Commit 878efac769392d4cdcdbd0eecefc74bd992badde by kateinoigakukun:

[Serialization] Force destructor creation for imported class

• add: test/Serialization/Inputs/objc-xref/objc_xref.h
• add: test/Serialization/Inputs/objc-xref/module.modulemap
• add: test/Serialization/xref-deinit.swift
• edit: lib/Serialization/Deserialization.cpp