[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 16.04 (master) #6277

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[FAILURE] oss-swift-incremental-RA-linux-ubuntu-16_04 [#6277]

Build URL:
https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/6277/
Project:
oss-swift-incremental-RA-linux-ubuntu-16_04
Date of build:
Mon, 26 Nov 2018 20:47:55 -0600
Build duration:
7 min 40 sec

Identified problems:

  • Swift Compile Error: Swift compiler error
  • Compile Error: This build failed because of a compile error. Below is a list of all errors in the build log:

Tests:

Name: Swift(linux-x86_64)
Failed: 0 test(s), Passed: 9713 test(s), Total: 10970 test(s)
Name: Swift-Unit
Failed: 0 test(s), Passed: 504 test(s), Total: 504 test(s)

Changes

  • Commit c725660cc9d69174809c214cf39d82fd8f807c33 by pyaskevich:
    [GSB] When adding same-type requirements pick representative based on

    • edit: lib/AST/GenericSignatureBuilder.cpp
    • edit: test/Generics/same_type_constraints.swift
    • add: test/Generics/rdar45957015.swift
    • edit: test/decl/protocol/req/associated_type_ambiguity.swift
  • Commit ab3d1f54e134c6c61a5146af425481b4f8a5d4aa by pyaskevich:
    [GSB/Diagnostics] Improve redundant same-type constraint diagnostics

    • edit: lib/AST/GenericSignatureBuilder.cpp
    • edit: test/Generics/same_type_constraints.swift
  • Commit 439784d54ab5582c66399a110339046d47939139 by pyaskevich:
    [GSB/Diagnostics] Use llvm::array_pod_sort to sort "as written" edges

    • edit: lib/AST/GenericSignatureBuilder.cpp
  • Commit f0e3209dbbb3f9dfaba476ffbfc2401b9ae5db7f by milseman:
    [test] Disable test on Linux that's ICU version-specific

    • edit: test/stdlib/CharacterProperties.swift
**20:54:54** <unknown>:0: warning: missing submodule 'Dispatch' **20:54:54** /home/buildnode/jenkins/workspace/oss-swift-incremental-RA-linux-ubuntu-16_04/swift-corelibs-foundation/Foundation/HTTPCookieStorage.swift:9:8: error: cannot load underlying module for 'Dispatch' **20:54:54** import Dispatch **20:54:54**        ^

Seems unrelated to my changes and 2 later builds were blue, I wonder what is going on here?