Cache – Build Information – Swift Package Index

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 Cache, reference main (78e6a4), with Swift 6.1 for watchOS using Xcode 16.3 on 26 Apr 2025 23:27:07 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/binaryscraping/swift-cache.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/binaryscraping/swift-cache
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 78e6a4a Fix `Cache.Key` in README
Cloned https://github.com/binaryscraping/swift-cache.git
Revision (git rev-parse @):
78e6a4aea3a825850a3859654ec9a5e7c47a10f2
SUCCESS checkout https://github.com/binaryscraping/swift-cache.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/binaryscraping/swift-cache.git
https://github.com/binaryscraping/swift-cache.git
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/pointfreeco/xctest-dynamic-overlay (cached)
Creating working copy of package ‘xctest-dynamic-overlay’
Checking out 0.9.0 of package ‘xctest-dynamic-overlay’
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
resolved source packages: xctest-dynamic-overlay, Cache
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Cache"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -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-16.3.0.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 Cache -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 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
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: de5f5bb9c145b1232c56c425930c227e
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/de5f5bb9c145b1232c56c425930c227e.xcbuilddata
error: The package product 'XCTestDynamicOverlay' requires minimum platform version 6.0 for the watchOS platform, but this target supports 5.0 (in target 'Cache' from project 'Cache')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Cache
(1 failure)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
resolved source packages: xctest-dynamic-overlay, Cache
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Cache"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-16.3.0.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 Cache -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: c104389a593f8e52787c450511114752
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c104389a593f8e52787c450511114752.xcbuilddata
error: The package product 'XCTestDynamicOverlay' requires minimum platform version 6.0 for the watchOS platform, but this target supports 5.0 (in target 'Cache' from project 'Cache')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Cache
(1 failure)
BUILD FAILURE 6.1 watchOS