The Swift Package Index logo.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 STM, reference master (35b4b1), with Swift 6.1 for iOS using Xcode 16.3 on 24 Apr 2025 09:21:13 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/lbrndnr/swift-stm.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/lbrndnr/swift-stm
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 35b4b13 Add performance test
Cloned https://github.com/lbrndnr/swift-stm.git
Revision (git rev-parse @):
35b4b13e6c018f64f46f6fdef4fcd496c38ad7ea
SUCCESS checkout https://github.com/lbrndnr/swift-stm.git at master
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/lbrndnr/swift-stm.git
https://github.com/lbrndnr/swift-stm.git
{
  "dependencies" : [
    {
      "identity" : "swift-atomics",
      "path" : "/Users/admin/builder/swift-atomics",
      "type" : "fileSystem"
    },
    {
      "identity" : "atomiclinkedlist",
      "path" : "/Users/admin/builder/AtomicLinkedList",
      "type" : "fileSystem"
    }
  ],
  "manifest_display_name" : "STM",
  "name" : "STM",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "STM",
      "targets" : [
        "STM"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "STMTests",
      "module_type" : "SwiftTarget",
      "name" : "STMTests",
      "path" : "Tests/STMTests",
      "sources" : [
        "Bank.swift",
        "DispatchBank.swift",
        "PerformanceTests.swift",
        "STMBank.swift",
        "STMTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "STM"
      ],
      "type" : "test"
    },
    {
      "c99name" : "STM",
      "module_type" : "SwiftTarget",
      "name" : "STM",
      "path" : "Sources/STM",
      "product_dependencies" : [
        "Atomics",
        "AtomicLinkedList"
      ],
      "product_memberships" : [
        "STM"
      ],
      "sources" : [
        "Atomic.swift",
        "BackoffIterator.swift",
        "Barrier.swift",
        "Identifiable.swift",
        "Reference.swift",
        "Signature.swift",
        "TType/Operators.swift",
        "TType/TNumeric.swift",
        "TType/TSequence.swift",
        "Thread.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "swift-atomics",
      "path" : "/Users/admin/builder/swift-atomics",
      "type" : "fileSystem"
    },
    {
      "identity" : "atomiclinkedlist",
      "path" : "/Users/admin/builder/AtomicLinkedList",
      "type" : "fileSystem"
    }
  ],
  "manifest_display_name" : "STM",
  "name" : "STM",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "STM",
      "targets" : [
        "STM"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "STMTests",
      "module_type" : "SwiftTarget",
      "name" : "STMTests",
      "path" : "Tests/STMTests",
      "sources" : [
        "Bank.swift",
        "DispatchBank.swift",
        "PerformanceTests.swift",
        "STMBank.swift",
        "STMTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "STM"
      ],
      "type" : "test"
    },
    {
      "c99name" : "STM",
      "module_type" : "SwiftTarget",
      "name" : "STM",
      "path" : "Sources/STM",
      "product_dependencies" : [
        "Atomics",
        "AtomicLinkedList"
      ],
      "product_memberships" : [
        "STM"
      ],
      "sources" : [
        "Atomic.swift",
        "BackoffIterator.swift",
        "Barrier.swift",
        "Identifiable.swift",
        "Reference.swift",
        "Signature.swift",
        "TType/Operators.swift",
        "TType/TNumeric.swift",
        "TType/TSequence.swift",
        "Thread.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "STM",
    "schemes" : [
      "AtomicLinkedList",
      "AtomicLinkedListPackageDescription",
      "Atomics",
      "AtomicsPackageDescription",
      "CAtomics",
      "STM",
      "STMPackageDescription",
      "STMPackageTests"
    ],
    "targets" : [
      "AtomicLinkedList",
      "AtomicLinkedListPackageDescription",
      "Atomics",
      "AtomicsPackageDescription",
      "CAtomics",
      "STM",
      "STMPackageDescription",
      "STMPackageTests",
      "STMTests"
    ]
  }
}
2025-04-24 02:21:12.487 xcodebuild[567:3301] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-24-04_02-21-0012.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the package at '/Users/admin/builder/swift-atomics' cannot be accessed (Error Domain=NSCocoaErrorDomain Code=260 "The folder “swift-atomics” doesn’t exist." UserInfo={NSUserStringVariant=(
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
the package at '/Users/admin/builder/swift-atomics' cannot be accessed (Error Domain=NSCocoaErrorDomain Code=260 "The folder “swift-atomics” doesn’t exist." UserInfo={NSUserStringVariant=(
    Folder
), NSFilePath=/Users/admin/builder/swift-atomics, NSURL=file:///Users/admin/builder/swift-atomics, NSUnderlyingError=0x6000023b3960 {Error Domain=NSOSStatusErrorDomain Code=-43 "fnfErr: File not found"}})
Resolved source packages:
  spi-builder-workspace: (null)
2025-04-24 02:21:13.196 xcodebuild[624:3600] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-24-04_02-21-0013.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the package at '/Users/admin/builder/swift-atomics' cannot be accessed (Error Domain=NSCocoaErrorDomain Code=260 "The folder “swift-atomics” doesn’t exist." UserInfo={NSUserStringVariant=(
BUILD FAILURE 6.1 iOS