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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build Prelude, reference 0.1.2 (5f0b12), with Swift 6.0 for watchOS using Xcode 16.2 on 28 Nov 2024 06:59:32 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Prelude-Package -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.58.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pointfreeco/swift-prelude.git
Reference: 0.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pointfreeco/swift-prelude
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at 5f0b128 move add/mult precedence to 6 and 7 (#9)
Cloned https://github.com/pointfreeco/swift-prelude.git
Revision (git rev-parse @):
5f0b128bf620e162d574219d3d45b272f19c8423
SUCCESS checkout https://github.com/pointfreeco/swift-prelude.git at 0.1.2
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/pointfreeco/swift-prelude.git
Command line invocation:
    /Applications/Xcode-16.1.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Prelude",
  "name" : "Prelude",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Prelude",
      "targets" : [
        "Prelude"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PreludeTests",
      "module_type" : "SwiftTarget",
      "name" : "PreludeTests",
      "path" : "Tests/PreludeTests",
      "sources" : [
        "ArrayTests.swift",
        "ChoiceTests.swift",
        "EitherTests.swift",
        "FunctionTests.swift",
        "KeyPathTests.swift",
        "MonoidTests.swift",
        "OptionalTests.swift",
        "SemigroupTests.swift",
        "SequenceTests.swift",
        "StringTests.swift",
        "StrongTests.swift",
        "TupleTests.swift",
        "UnitTests.swift"
      ],
      "target_dependencies" : [
        "Prelude"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Prelude",
      "module_type" : "SwiftTarget",
      "name" : "Prelude",
      "path" : "Sources/Prelude",
      "product_memberships" : [
        "Prelude"
      ],
      "sources" : [
        "Array.swift",
        "Choice.swift",
        "Either.swift",
        "Function.swift",
        "KeyPath.swift",
        "Monoid.swift",
        "Operators.swift",
        "Optional.swift",
        "PrecedenceGroups.swift",
        "Semigroup.swift",
        "Sequence.swift",
        "String.swift",
        "Strong.swift",
        "Tuple.swift",
        "Unit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Prelude",
    "schemes" : [
      "Prelude-Package",
      "PreludePackageTests"
    ],
    "targets" : [
      "PreludeTests",
      "Prelude",
      "PreludePackageTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Prelude-Package -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.1.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Prelude-Package -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Prelude' in project 'Prelude' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.1.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.1.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 9f7549523c8d3a28363997235136d7e6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9f7549523c8d3a28363997235136d7e6.xcbuilddata
error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0, 6.0. (in target 'Prelude' from project 'Prelude')
error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0, 6.0. (in target 'Prelude' from project 'Prelude')
** BUILD FAILED **
The following build commands failed:
	Building project Prelude with scheme Prelude-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-16.1.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Prelude-Package -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Prelude' in project 'Prelude' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0, 6.0. (in target 'Prelude' from project 'Prelude')
error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0, 6.0. (in target 'Prelude' from project 'Prelude')
** BUILD FAILED **
The following build commands failed:
	Building project Prelude with scheme Prelude-Package
(1 failure)
BUILD FAILURE 6.0 watchOS