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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

Successful build of OLEKit, reference 0.3.1 (2cc7a9), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 07:53:58 UTC.

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/CoreOffice/OLEKit.git
Reference: 0.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/CoreOffice/OLEKit
 * tag               0.3.1      -> FETCH_HEAD
HEAD is now at 2cc7a98 Update `CHANGELOG.md` for the 0.3.1 release (#12)
Cloned https://github.com/CoreOffice/OLEKit.git
Revision (git rev-parse @):
2cc7a98b4ac4e9ce022336258a3bc4ff6bfc285b
SUCCESS checkout https://github.com/CoreOffice/OLEKit.git at 0.3.1
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "olekit",
      "name": "OLEKit",
      "url": "https://github.com/CoreOffice/OLEKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/OLEKit",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/CoreOffice/OLEKit.git
[1/906] Fetching olekit
Fetched https://github.com/CoreOffice/OLEKit.git from cache (0.83s)
Creating working copy for https://github.com/CoreOffice/OLEKit.git
Working copy of https://github.com/CoreOffice/OLEKit.git resolved at 0.3.1 (2cc7a98)
warning: '.resolve-product-dependencies': dependency 'olekit' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/CoreOffice/OLEKit.git
https://github.com/CoreOffice/OLEKit.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "OLEKit",
  "name" : "OLEKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "OLEKit",
      "targets" : [
        "OLEKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OLEKitTests",
      "module_type" : "SwiftTarget",
      "name" : "OLEKitTests",
      "path" : "Tests/OLEKitTests",
      "sources" : [
        "DataWriterTests.swift",
        "OLEKitTests.swift"
      ],
      "target_dependencies" : [
        "OLEKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OLEKit",
      "module_type" : "SwiftTarget",
      "name" : "OLEKit",
      "path" : "Sources/OLEKit",
      "product_memberships" : [
        "OLEKit"
      ],
      "sources" : [
        "DataStream.swift",
        "DirectoryEntry.swift",
        "FAT.swift",
        "Header.swift",
        "OLEError.swift",
        "OLEFile.swift",
        "OLEStream.swift",
        "Reader.swift",
        "StorageType.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/12] Compiling OLEKit Reader.swift
[4/12] Compiling OLEKit OLEStream.swift
[5/12] Compiling OLEKit OLEFile.swift
[6/12] Compiling OLEKit FAT.swift
[7/12] Compiling OLEKit StorageType.swift
[8/12] Compiling OLEKit Header.swift
[9/12] Compiling OLEKit DataStream.swift
[10/12] Compiling OLEKit DirectoryEntry.swift
[11/12] Compiling OLEKit OLEError.swift
/Users/admin/builder/spi-builder-workspace/Sources/OLEKit/OLEError.swift:28:8: warning: associated value 'incorrectRootEntry(actual:)' of 'Sendable'-conforming enum 'OLEError' has non-sendable type 'StorageType'; this is an error in the Swift 6 language mode
 26 |   case incorrectStorageType(actual: UInt8)
 27 |   case invalidFATSector(byteOffset: UInt64)
 28 |   case incorrectRootEntry(actual: StorageType)
    |        `- warning: associated value 'incorrectRootEntry(actual:)' of 'Sendable'-conforming enum 'OLEError' has non-sendable type 'StorageType'; this is an error in the Swift 6 language mode
 29 |   case directoryEntryIsNotAStream(name: String)
 30 |   case fileNotAvailableForReading(path: String)
/Users/admin/builder/spi-builder-workspace/Sources/OLEKit/StorageType.swift:16:13: note: consider making enum 'StorageType' conform to the 'Sendable' protocol
14 |
15 | /// Object types in storage (from AAF specifications)
16 | public enum StorageType: UInt8 {
   |             `- note: consider making enum 'StorageType' conform to the 'Sendable' protocol
17 |   /// Empty directory entry
18 |   case empty = 0
[12/12] Emitting module OLEKit
/Users/admin/builder/spi-builder-workspace/Sources/OLEKit/OLEError.swift:28:8: warning: associated value 'incorrectRootEntry(actual:)' of 'Sendable'-conforming enum 'OLEError' has non-sendable type 'StorageType'; this is an error in the Swift 6 language mode
 26 |   case incorrectStorageType(actual: UInt8)
 27 |   case invalidFATSector(byteOffset: UInt64)
 28 |   case incorrectRootEntry(actual: StorageType)
    |        `- warning: associated value 'incorrectRootEntry(actual:)' of 'Sendable'-conforming enum 'OLEError' has non-sendable type 'StorageType'; this is an error in the Swift 6 language mode
 29 |   case directoryEntryIsNotAStream(name: String)
 30 |   case fileNotAvailableForReading(path: String)
/Users/admin/builder/spi-builder-workspace/Sources/OLEKit/StorageType.swift:16:13: note: consider making enum 'StorageType' conform to the 'Sendable' protocol
14 |
15 | /// Object types in storage (from AAF specifications)
16 | public enum StorageType: UInt8 {
   |             `- note: consider making enum 'StorageType' conform to the 'Sendable' protocol
17 |   /// Empty directory entry
18 |   case empty = 0
Build complete! (5.33s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "OLEKit",
  "name" : "OLEKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "OLEKit",
      "targets" : [
        "OLEKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OLEKitTests",
      "module_type" : "SwiftTarget",
      "name" : "OLEKitTests",
      "path" : "Tests/OLEKitTests",
      "sources" : [
        "DataWriterTests.swift",
        "OLEKitTests.swift"
      ],
      "target_dependencies" : [
        "OLEKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "OLEKit",
      "module_type" : "SwiftTarget",
      "name" : "OLEKit",
      "path" : "Sources/OLEKit",
      "product_memberships" : [
        "OLEKit"
      ],
      "sources" : [
        "DataStream.swift",
        "DirectoryEntry.swift",
        "FAT.swift",
        "Header.swift",
        "OLEError.swift",
        "OLEFile.swift",
        "OLEStream.swift",
        "Reader.swift",
        "StorageType.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.