[Swift CI] Build Failure: OSS - Swift Package - Ubuntu 18.04 (master) #1868

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[FAILURE] oss-swift-package-linux-ubuntu-18_04 [#1868]

Build URL:
https://ci.swift.org/job/oss-swift-package-linux-ubuntu-18_04/1868/
Project:
oss-swift-package-linux-ubuntu-18_04
Date of build:
Thu, 19 Sep 2019 23:01:03 -0500
Build duration:
1 hr 7 min

Identified problems:

  • Assertion failure: This build failed because of an assertion failure. Below is a list of all errors in the build log:

Changes

  • Commit 9864cb9c06180b68290502edb34188841111cd61 by mgottesman:
    [polymorphic-builtins] Teach constant folding how to fold a polymorphic

    • edit: lib/SIL/SILVerifier.cpp
    • edit: include/swift/SIL/InstructionUtils.h
    • edit: include/swift/SIL/SILInstruction.h
    • edit: lib/SILOptimizer/Utils/ConstantFolding.cpp
    • add: test/SILOptimizer/polymorphic_builtins.sil
    • edit: lib/SIL/InstructionUtils.cpp