[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master) #14429

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# [FAILURE] oss-swift-incremental-RA-linux-ubuntu-16_04 [#14429]

Build URL: https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/14429/
Project: oss-swift-incremental-RA-linux-ubuntu-16_04
Date of build: Mon, 31 Aug 2020 20:16:08 -0500
Build duration: 1 hr 50 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 af4199e4f6b0e97f700ef363f0d2c6e4d6a2b264 by mgottesman:

[build-toolchain] Add an option to control if code built by the toolchain links by default to the OS runtime or the toolchain runtime.

  • edit: utils/build-presets.ini

  • edit: utils/build-toolchain

  • edit: utils/build-script-impl

  • Commit 0b2b7b58e88b16c7d9c0a1d07c57959b270e3ddc by dgregor:

    [Constraint solver] Fix backward trailing closures with ".member" expressions

    • edit: lib/Sema/CSApply.cpp
    • add: test/expr/postfix/call/forward_trailing_closure_unresolved_member.swift

  • Commit cabcbc92707e2e85a203dc99573c57537e1fbf24 by dgregor:

    [Constraint application] Find trailing closure direction more carefully.

    • edit: lib/Sema/CSApply.cpp

  • Commit 7c12c7f4667a9afaddc658b48bda1ab89f9d0522 by mgottesman:

    [semantic-arc] Extract out borrow scope optimizations into its own file.

    • edit: lib/SILOptimizer/SemanticARC/CMakeLists.txt
    • edit: lib/SILOptimizer/SemanticARC/SemanticARCOpts.cpp
    • add: lib/SILOptimizer/SemanticARC/BorrowScopeOpts.cpp

  • Commit d82470a07d30b87fab5856d0c5055bd388fd3423 by mgottesman:

    [ownership] Merge regularUsers and implicitRegularUsers into just "regularUsers".

    • edit: lib/SIL/Verifier/SILOwnershipVerifier.cpp

  • Commit 82c43a8ac75e82f080b9bc157e26af5a16b33f72 by github:

    [Dynamic Casting] Allow casts to "more optional" types (#33684)

    • edit: lib/Sema/TypeCheckConstraints.cpp
    • edit: test/Constraints/optional.swift
    • edit: test/Constraints/casts.swift
    • edit: include/swift/AST/DiagnosticsSema.def
    • edit: lib/Sema/CSApply.cpp
    • edit: test/expr/cast/as_coerce.swift