Swift Package Index

Build Information

Successful build of FoundationCombine, reference master (4b6c5d), with Swift 6.4 for macOS (SPM) on 16 Sep 2026 13:43:19 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/CombineHarvesters/FoundationCombine.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/CombineHarvesters/FoundationCombine
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 4b6c5d1 Separate the Publisher conformance to an extension
Cloned https://github.com/CombineHarvesters/FoundationCombine.git
Revision (git rev-parse @):
4b6c5d1013c2bf2ccebdf762cad70564ceb213a7
SUCCESS checkout https://github.com/CombineHarvesters/FoundationCombine.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/CombineHarvesters/FoundationCombine.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
[19 / 28]
[20 / 29] FoundationCombine
[30 / 68]
[35 / 68]
[38 / 68]
[39 / 68]
[43 / 68]
[45 / 68]
[48 / 68]
[51 / 68]
[53 / 68]
[54 / 68]
[59 / 68] FoundationCombine
[65 / 68] FoundationCombine
Build complete! (6.82 sec)
Fetching https://github.com/CombineHarvesters/CombineTesting
[1/26] Fetching combinetesting
Fetched https://github.com/CombineHarvesters/CombineTesting (0.75s)
Creating working copy for https://github.com/CombineHarvesters/CombineTesting
Working copy of https://github.com/CombineHarvesters/CombineTesting resolved at master (4ad47f6)
/Users/admin/builder/spi-builder-workspace/Sources/FoundationCombine/ZipCollection.swift:55:17: warning: variable 'count' was never mutated; consider changing to 'let' constant [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 53 |
 54 |         init(subscriber: Subscriber, publishers: Publishers) {
 55 |             var count = publishers.count
    |                 `- warning: variable 'count' was never mutated; consider changing to 'let' constant [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 56 |             var outputs = publishers.map { _ in Queue<Publishers.Element.Output>() }
 57 |             var completions = 0
/Users/admin/builder/spi-builder-workspace/Sources/FoundationCombine/ZipCollection.swift:56:17: warning: variable 'outputs' was never mutated; consider changing to 'let' constant [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 54 |         init(subscriber: Subscriber, publishers: Publishers) {
 55 |             var count = publishers.count
 56 |             var outputs = publishers.map { _ in Queue<Publishers.Element.Output>() }
    |                 `- warning: variable 'outputs' was never mutated; consider changing to 'let' constant [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 57 |             var completions = 0
 58 |             var hasCompleted = false
[#VariableNeverMutated]: <https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated>
Build complete.
{
  "dependencies" : [
    {
      "identity" : "combinetesting",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/CombineHarvesters/CombineTesting"
    }
  ],
  "manifest_display_name" : "FoundationCombine",
  "name" : "FoundationCombine",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "FoundationCombine",
      "targets" : [
        "FoundationCombine"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FoundationCombineTests",
      "module_type" : "SwiftTarget",
      "name" : "FoundationCombineTests",
      "path" : "Tests/FoundationCombineTests",
      "product_dependencies" : [
        "CombineTesting"
      ],
      "sources" : [
        "CombineLatestCollectionTests.swift",
        "ReduceIntoTests.swift",
        "ScanIntoTests.swift",
        "ZipCollectionTests.swift"
      ],
      "target_dependencies" : [
        "FoundationCombine"
      ],
      "type" : "test"
    },
    {
      "c99name" : "FoundationCombine",
      "module_type" : "SwiftTarget",
      "name" : "FoundationCombine",
      "path" : "Sources/FoundationCombine",
      "product_memberships" : [
        "FoundationCombine"
      ],
      "sources" : [
        "CombineLatestCollection.swift",
        "ReduceInto.swift",
        "ScanInto.swift",
        "ZipCollection.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.