[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master) #14434

# [FAILURE] oss-swift-incremental-RA-linux-ubuntu-16_04 [#14434]

Build URL: https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/14434/
Project: oss-swift-incremental-RA-linux-ubuntu-16_04
Date of build: Tue, 01 Sep 2020 13:33:47 -0500
Build duration: 1 hr 42 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 6a99fde6a6e5d85741c509eeed9557611006c830 by pyaskevich:

[CSBindings] Delay binding chain result if type is an optional of a type variable

  • edit: test/expr/delayed-ident/member_chains.swift

  • edit: lib/Sema/CSBindings.cpp

  • Commit c6a32b297d08dd089ad3441b65991340f62ca06b by bbuegling:

    Make module map generation conditional

    • edit: Sources/XCBuildSupport/PIFBuilder.swift
  • Commit 73b2a4a95fe6aff1631fa9148cdfbbccdb3b7929 by mishal_shah:

    [bootstrap] Add support for cross compile hosts flag

    • edit: Utilities/bootstrap
  • Commit 531aee6d7af08748a891b3b201ac16910a205c28 by achikin:

    [Explicit Module Builds] Use the new batch scanning mode for versioned PCM clang modele re-scan

    • edit: Sources/SwiftDriver/Execution/DriverExecutor.swift
    • add: Sources/SwiftDriver/Explicit Module Builds/SerializableModuleArtifacts.swift
    • edit: Sources/SwiftDriver/Explicit Module Builds/ModuleDependencyScanning.swift
    • edit: Sources/SwiftDriver/CMakeLists.txt
    • delete: Sources/SwiftDriver/Explicit Module Builds/ModuleArtifacts.swift
    • edit: Sources/SwiftDriver/Explicit Module Builds/ClangVersionedDependencyResolution.swift