Deferred – Build Information – Swift Package Index

Build Information

Successful build of Deferred, reference develop (c82b9e), with Swift 6.4 for macOS (SPM) on 18 Sep 2026 15:35:43 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
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Clone URL: https://github.com/bignerdranch/Deferred.git
Reference: develop
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bignerdranch/Deferred
 * branch            develop    -> FETCH_HEAD
 * [new branch]      develop    -> origin/develop
HEAD is now at c82b9ef Add concurrency migration guide
Cloned https://github.com/bignerdranch/Deferred.git
Revision (git rev-parse @):
c82b9ef73132ac88a768b9e2fdbab7765346c61d
SUCCESS checkout https://github.com/bignerdranch/Deferred.git at develop
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/bignerdranch/Deferred.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 125]
[Planning deferred tasks]
[27 / 47]
[30 / 48] CAtomics
[31 / 48] Deferred
[41 / 95]
[43 / 95]
[49 / 95]
[52 / 95]
[56 / 95]
[58 / 95]
[61 / 95]
[64 / 95]
[66 / 95]
[67 / 95]
[78 / 95] Deferred
[79 / 95] Deferred
[85 / 96] Deferred
[85 / 96] Task
[89 / 107] Task
[101 / 107] Task
[102 / 107] Deferred-product
[102 / 107] Task
Build complete! (7.66 sec)
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Atomics.swift:19:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m17 |[0;0m
 [0;36m18 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m19 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m20 |[0;0m #elseif canImport(Darwin)
 [0;36m21 |[0;0m #warning("Using fallback implementation for Swift Playgrounds. This is unsafe for use in production. Check your build setup.")
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/DeferredVariant.swift:10:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
  [0;36m8 |[0;0m
  [0;36m9 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m10 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m11 |[0;0m #endif
 [0;36m12 |[0;0m
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/DeferredVariant.swift:10:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
  [0;36m8 |[0;0m
  [0;36m9 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m10 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m11 |[0;0m #endif
 [0;36m12 |[0;0m
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/Task/ExistentialTask.swift:14:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Task'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m12 |[0;0m #endif
 [0;36m13 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m14 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Task'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m15 |[0;0m #endif
 [0;36m16 |[0;0m
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+ExplicitComposition.swift:15:21: [1;33mwarning: [1;39mclass 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m13 |[0;0m /// tree.
 [0;36m14 |[0;0m @objc(BNRTaskProxyProgress)
 [0;36m15 |[0;0m private final class ProxyProgress: Progress {
    [0;36m|[0;0m                     `- [1;33mwarning: [1;39mclass 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m16 |[0;0m
 [0;36m17 |[0;0m     @objc dynamic let observee: Progress
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskChain.swift:35:19: [1;33mwarning: [1;39mclass 'Root' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m33 |[0;0m     /// that first task's `Root`.
 [0;36m34 |[0;0m     @objc(BNRTaskRootProgress)
 [0;36m35 |[0;0m     private class Root: Progress {
    [0;36m|[0;0m                   `- [1;33mwarning: [1;39mclass 'Root' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m36 |[0;0m         /// Key for value of type `[Root]?` in `Thread.threadDictionary`.
 [0;36m37 |[0;0m         static let threadKey = "_BNRTaskProgressStack"
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Atomics.swift:19:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m17 |[0;0m
 [0;36m18 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m19 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Deferred'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m20 |[0;0m #elseif canImport(Darwin)
 [0;36m21 |[0;0m #warning("Using fallback implementation for Swift Playgrounds. This is unsafe for use in production. Check your build setup.")
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/Task/ExistentialTask.swift:14:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Task'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m12 |[0;0m #endif
 [0;36m13 |[0;0m #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 [0;36m14 |[0;0m @_implementationOnly import CAtomics
    [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Task'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m15 |[0;0m #endif
 [0;36m16 |[0;0m
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+ExplicitComposition.swift:15:21: [1;33mwarning: [1;39mclass 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m13 |[0;0m /// tree.
 [0;36m14 |[0;0m @objc(BNRTaskProxyProgress)
 [0;36m15 |[0;0m private final class ProxyProgress: Progress {
    [0;36m|[0;0m                     `- [1;33mwarning: [1;39mclass 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m16 |[0;0m
 [0;36m17 |[0;0m     @objc dynamic let observee: Progress
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskChain.swift:35:19: [1;33mwarning: [1;39mclass 'Root' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m33 |[0;0m     /// that first task's `Root`.
 [0;36m34 |[0;0m     @objc(BNRTaskRootProgress)
 [0;36m35 |[0;0m     private class Root: Progress {
    [0;36m|[0;0m                   `- [1;33mwarning: [1;39mclass 'Root' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m36 |[0;0m         /// Key for value of type `[Root]?` in `Thread.threadDictionary`.
 [0;36m37 |[0;0m         static let threadKey = "_BNRTaskProgressStack"
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Deferred",
  "name" : "Deferred",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
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      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TaskTests",
      "module_type" : "SwiftTarget",
      "name" : "TaskTests",
      "path" : "Tests/TaskTests",
      "sources" : [
        "AllTestsCommon.swift",
        "TaskAsyncTests.swift",
        "TaskCompositionTests.swift",
        "TaskComprehensiveTests.swift",
        "TaskProgressTests.swift",
        "TaskProtocolTests.swift",
        "TaskResultTests.swift",
        "TaskTests.swift"
      ],
      "target_dependencies" : [
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        "Task"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Task",
      "module_type" : "SwiftTarget",
      "name" : "Task",
      "path" : "Sources/Task",
      "product_memberships" : [
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      ],
      "sources" : [
        "Either.swift",
        "ExistentialTask.swift",
        "Progress+ExplicitComposition.swift",
        "Progress+Future.swift",
        "Task.swift",
        "TaskAndThen.swift",
        "TaskAsync.swift",
        "TaskChain.swift",
        "TaskCollections.swift",
        "TaskComposition.swift",
        "TaskEveryMap.swift",
        "TaskFallback.swift",
        "TaskIgnore.swift",
        "TaskMap.swift",
        "TaskPromise.swift",
        "TaskRecovery.swift",
        "TaskResult.swift",
        "TaskUpon.swift"
      ],
      "target_dependencies" : [
        "Deferred",
        "CAtomics"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DeferredTests",
      "module_type" : "SwiftTarget",
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      "sources" : [
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        "DeferredTests.swift",
        "ExistentialFutureTests.swift",
        "FilledDeferredTests.swift",
        "FutureAsyncTests.swift",
        "FutureCustomExecutorTests.swift",
        "FutureIgnoreTests.swift",
        "FutureTests.swift",
        "ObjectDeferredTests.swift",
        "PerformanceTests.swift",
        "ProtectedTests.swift",
        "SwiftBugTests.swift"
      ],
      "target_dependencies" : [
        "Deferred"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Deferred",
      "module_type" : "SwiftTarget",
      "name" : "Deferred",
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      "product_memberships" : [
        "Deferred"
      ],
      "sources" : [
        "Atomics.swift",
        "Deferred.swift",
        "DeferredQueue.swift",
        "DeferredVariant.swift",
        "Executor.swift",
        "ExistentialFuture.swift",
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        "FutureAndThen.swift",
        "FutureAsync.swift",
        "FutureCollections.swift",
        "FutureComposition.swift",
        "FutureEveryMap.swift",
        "FutureIgnore.swift",
        "FutureMap.swift",
        "FuturePeek.swift",
        "FutureUpon.swift",
        "Locking.swift",
        "Promise.swift",
        "Protected.swift"
      ],
      "target_dependencies" : [
        "CAtomics"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CAtomics",
      "module_type" : "ClangTarget",
      "name" : "CAtomics",
      "path" : "Sources/CAtomics",
      "product_memberships" : [
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      "sources" : [
        "Empty.c"
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      "type" : "library"
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  ],
  "tools_version" : "5.1"
}
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
Done.