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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 SwiftBeanCountModel, reference main (a7ad22), with Swift 6.0 for macOS (SPM) on 16 Apr 2025 09:18:56 UTC.

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Nef10/SwiftBeanCountModel.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Nef10/SwiftBeanCountModel
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a7ad221 Bump swift-actions/setup-swift from 2.2.0 to 2.3.0
Cloned https://github.com/Nef10/SwiftBeanCountModel.git
Revision (git rev-parse @):
a7ad22196e48ee4ebe4391ec4d8bca86ad48e6d1
SUCCESS checkout https://github.com/Nef10/SwiftBeanCountModel.git at main
========================================
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": "swiftbeancountmodel",
      "name": "SwiftBeanCountModel",
      "url": "https://github.com/Nef10/SwiftBeanCountModel.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftBeanCountModel",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/Nef10/SwiftBeanCountModel.git
[1/3348] Fetching swiftbeancountmodel
Fetched https://github.com/Nef10/SwiftBeanCountModel.git from cache (1.10s)
Creating working copy for https://github.com/Nef10/SwiftBeanCountModel.git
Working copy of https://github.com/Nef10/SwiftBeanCountModel.git resolved at main (a7ad221)
warning: '.resolve-product-dependencies': dependency 'swiftbeancountmodel' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/Nef10/SwiftBeanCountModel.git
https://github.com/Nef10/SwiftBeanCountModel.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftBeanCountModel",
  "name" : "SwiftBeanCountModel",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftBeanCountModel",
      "targets" : [
        "SwiftBeanCountModel"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftBeanCountModelTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftBeanCountModelTests",
      "path" : "Tests/SwiftBeanCountModelTests",
      "sources" : [
        "AccountNameTests.swift",
        "AccountTests.swift",
        "AmountTests.swift",
        "BalanceTests.swift",
        "CommodityTests.swift",
        "CostTests.swift",
        "CustomTests.swift",
        "EventTests.swift",
        "FlagTests.swift",
        "InventoryTests.swift",
        "LedgerTests.swift",
        "MultiCurrencyAmountTests.swift",
        "OptionTests.swift",
        "PriceTests.swift",
        "TagTests.swift",
        "TestUtils.swift",
        "TransactionMetaDataTests.swift",
        "TransactionPostingTests.swift",
        "TransactionTests.swift"
      ],
      "target_dependencies" : [
        "SwiftBeanCountModel"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftBeanCountModel",
      "module_type" : "SwiftTarget",
      "name" : "SwiftBeanCountModel",
      "path" : "Sources/SwiftBeanCountModel",
      "product_memberships" : [
        "SwiftBeanCountModel"
      ],
      "sources" : [
        "Account.swift",
        "AccountName.swift",
        "Amount.swift",
        "Balance.swift",
        "Commodity.swift",
        "Cost.swift",
        "Custom.swift",
        "Event.swift",
        "Flag.swift",
        "Inventory.swift",
        "Ledger.swift",
        "MultiCurrencyAmount.swift",
        "Option.swift",
        "Price.swift",
        "Tag.swift",
        "Transaction.swift",
        "TransactionMetaData.swift",
        "TransactionPosting.swift",
        "ValidationResult.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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-5BDAB9E9C0126B9D.txt
[3/21] Compiling SwiftBeanCountModel Ledger.swift
[4/21] Compiling SwiftBeanCountModel MultiCurrencyAmount.swift
[5/21] Compiling SwiftBeanCountModel TransactionMetaData.swift
[6/21] Compiling SwiftBeanCountModel TransactionPosting.swift
[7/21] Compiling SwiftBeanCountModel Option.swift
[8/21] Compiling SwiftBeanCountModel Price.swift
[9/22] Compiling SwiftBeanCountModel Commodity.swift
[10/22] Compiling SwiftBeanCountModel Cost.swift
[11/22] Compiling SwiftBeanCountModel Flag.swift
[12/22] Compiling SwiftBeanCountModel Inventory.swift
[13/22] Compiling SwiftBeanCountModel Custom.swift
[14/22] Compiling SwiftBeanCountModel Event.swift
[15/22] Compiling SwiftBeanCountModel Tag.swift
[16/22] Compiling SwiftBeanCountModel Transaction.swift
[17/22] Compiling SwiftBeanCountModel Account.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftBeanCountModel/AccountName.swift:66:24: warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 64 |     public static func isNameValid(_ name: String) -> Bool {
 65 |         struct Cache { // https://stackoverflow.com/a/25354915/3386893 // swiftlint:disable:this convenience_type
 66 |             static var validNames = Set<String>()
    |                        |- warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'validNames' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'validNames' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 67 |         }
 68 |         if Cache.validNames.contains(name) {
[18/22] Compiling SwiftBeanCountModel AccountName.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftBeanCountModel/AccountName.swift:66:24: warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 64 |     public static func isNameValid(_ name: String) -> Bool {
 65 |         struct Cache { // https://stackoverflow.com/a/25354915/3386893 // swiftlint:disable:this convenience_type
 66 |             static var validNames = Set<String>()
    |                        |- warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'validNames' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'validNames' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 67 |         }
 68 |         if Cache.validNames.contains(name) {
[19/22] Compiling SwiftBeanCountModel Amount.swift
[20/22] Compiling SwiftBeanCountModel Balance.swift
[21/22] Emitting module SwiftBeanCountModel
/Users/admin/builder/spi-builder-workspace/Sources/SwiftBeanCountModel/AccountName.swift:66:24: warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 64 |     public static func isNameValid(_ name: String) -> Bool {
 65 |         struct Cache { // https://stackoverflow.com/a/25354915/3386893 // swiftlint:disable:this convenience_type
 66 |             static var validNames = Set<String>()
    |                        |- warning: static property 'validNames' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'validNames' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'validNames' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 67 |         }
 68 |         if Cache.validNames.contains(name) {
[22/22] Compiling SwiftBeanCountModel ValidationResult.swift
Build complete! (16.06s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftBeanCountModel",
  "name" : "SwiftBeanCountModel",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftBeanCountModel",
      "targets" : [
        "SwiftBeanCountModel"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftBeanCountModelTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftBeanCountModelTests",
      "path" : "Tests/SwiftBeanCountModelTests",
      "sources" : [
        "AccountNameTests.swift",
        "AccountTests.swift",
        "AmountTests.swift",
        "BalanceTests.swift",
        "CommodityTests.swift",
        "CostTests.swift",
        "CustomTests.swift",
        "EventTests.swift",
        "FlagTests.swift",
        "InventoryTests.swift",
        "LedgerTests.swift",
        "MultiCurrencyAmountTests.swift",
        "OptionTests.swift",
        "PriceTests.swift",
        "TagTests.swift",
        "TestUtils.swift",
        "TransactionMetaDataTests.swift",
        "TransactionPostingTests.swift",
        "TransactionTests.swift"
      ],
      "target_dependencies" : [
        "SwiftBeanCountModel"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftBeanCountModel",
      "module_type" : "SwiftTarget",
      "name" : "SwiftBeanCountModel",
      "path" : "Sources/SwiftBeanCountModel",
      "product_memberships" : [
        "SwiftBeanCountModel"
      ],
      "sources" : [
        "Account.swift",
        "AccountName.swift",
        "Amount.swift",
        "Balance.swift",
        "Commodity.swift",
        "Cost.swift",
        "Custom.swift",
        "Event.swift",
        "Flag.swift",
        "Inventory.swift",
        "Ledger.swift",
        "MultiCurrencyAmount.swift",
        "Option.swift",
        "Price.swift",
        "Tag.swift",
        "Transaction.swift",
        "TransactionMetaData.swift",
        "TransactionPosting.swift",
        "ValidationResult.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Done.