[Swift CI] Build Failure: OSS - Swift Package - Ubuntu 16.04 (master) #5315

# [FAILURE] oss-swift-package-linux-ubuntu-16_04 [#5315]

Build URL: https://ci.swift.org/job/oss-swift-package-linux-ubuntu-16_04/5315/
Project: oss-swift-package-linux-ubuntu-16_04
Date of build: Mon, 13 Jul 2020 20:32:10 -0500
Build duration: 53 min

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

Changes- Commit aa88808a48264eaaea2d61eeb92e46dd9853b88a by vsk:

Add missing validity-check for SwiftASTContextReader

  • edit: lldb/source/Target/SwiftLanguageRuntimeDynamicTypeResolution.cpp

  • Commit dfe1cea1801ba449e7c3d8fe26a88ff185b79159 by achikin:

    [Build Script Helper] Fix frontend executable search environment

    • edit: Utilities/build-script-helper.py