[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (main) #15971

# [FAILURE] oss-swift-incremental-RA-linux-ubuntu-16_04 [#15971]

Build URL: https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/15971/
Project: oss-swift-incremental-RA-linux-ubuntu-16_04
Date of build: Mon, 01 Mar 2021 23:53:08 -0600
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 cdc460b72781c85366b36ed20dbaa3d623df7bae by etceterawilde:

Disable async_taskgroup_throw_recover on windows

  • edit: test/Concurrency/Runtime/async_taskgroup_throw_recover.swift

  • Commit 58697677a44767f7470f697ea06726f85a2adb4d by z.zoelec2:

    [nfc] Fix class-template-uninstantiable-members-irgen for i386.

    • edit: test/Interop/Cxx/templates/class-template-uninstantiatable-members-irgen.swift
  • Commit 1a9992991f26d9b8a57f455bf81348a5a14a352e by aprantl:

    Fix test on watch simulator

    • edit: test/DebugInfo/async-let-await.swift
  • Commit 72bd35a344b69bd6e0684faa6943f4f74eb958f8 by spestov:

    GSB: New algorithm for identifying redundant requirements

    • edit: include/swift/AST/GenericSignatureBuilder.h
    • edit: lib/AST/GenericSignatureBuilder.cpp
  • Commit 0be55c130d818a1b83615f5ca3d5d1618c5e5c3a by spestov:

    GSB: Use redundant requirement graph in enumerateRequirements()

    • edit: test/Generics/same_type_constraints.swift
    • add: test/Generics/rdar62903491.swift
    • edit: lib/AST/GenericSignatureBuilder.cpp
    • add: test/Generics/same_type_minimize_concrete.swift
    • edit: test/decl/protocol/recursive_requirement.swift
    • edit: include/swift/AST/GenericSignatureBuilder.h