[Swift CI] Build Failure: OSS - Swift Package - Ubuntu 18.04 (master) #2963

# [FAILURE] oss-swift-package-linux-ubuntu-18_04 [#2963]

Build URL: https://ci.swift.org/job/oss-swift-package-linux-ubuntu-18_04/2963/
Project: oss-swift-package-linux-ubuntu-18_04
Date of build: Fri, 05 Jun 2020 15:24:20 -0500
Build duration: 1 hr 2 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 e68261a637d8d413d1e14ac7e2584a333d9e82a2 by mishal_shah:

Re-download the toolchain for swift-driver CI

  • edit: jobs/pull-request/pr-swift-driver.sh

  • Commit 915c4a6997119b1c67cd83c61619538dc4586aa9 by kateinoigakukun:

    [LTO] Support LLVM level link time optimization

    • add: test/Driver/Inputs/lto/multifiles/file.swift
    • add: test/Driver/link-time-opt-lib.swift
    • edit: include/swift/Driver/Action.h
    • edit: lib/Frontend/CompilerInvocation.cpp
    • add: test/Driver/link-time-opt-staticlib-thin.swift
    • edit: lib/Driver/UnixToolChains.cpp
    • add: test/Driver/link-time-opt-lib-thin.swift
    • edit: lib/Driver/DarwinToolChains.cpp
    • edit: utils/build-windows.bat
    • edit: include/swift/Driver/Driver.h
    • edit: include/swift/Option/Options.td
    • edit: lib/Driver/WindowsToolChains.cpp
    • add: test/Driver/Inputs/lto/main.swift
    • edit: lib/Driver/ToolChains.h
    • edit: include/swift/AST/IRGenOptions.h
    • add: test/Driver/Inputs/lto/multifiles/main.swift
    • add: test/Driver/link-time-opt.swift
    • edit: lib/Driver/Driver.cpp
    • edit: lib/IRGen/IRGen.cpp
    • edit: lib/Driver/ToolChains.cpp
    • add: test/Driver/link-time-opt-staticlib.swift
    • edit: lib/IRGen/IRGenModule.cpp
    • add: test/Driver/Inputs/lto/lib.swift
  • Commit b8abe55bc56f89fde88907c51093da264fb6a0b6 by levantol:

    Build dependency list once

    • edit: lib/FrontendTool/FrontendTool.cpp
  • Commit 34bddf4d6799d235ceee266c459deb941bc62d04 by github:

    Remove spurios print statements in the -scan-dependencies option test

    • edit: Tests/SwiftDriverTests/SwiftDriverTests.swift
  • Commit 3a70c2bad1a1920929977089514f795fd0650342 by si:

    SR-12450: Add missing String.init(_ cocoaString: NSString) initialiser

    • edit: Sources/Foundation/NSStringAPI.swift
    • edit: Tests/Foundation/Tests/TestNSString.swift