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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 SHDateFormatter, reference develop (dc863e), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 15:06:33 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/blackjacx/SHDateFormatter.git
Reference: develop
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/blackjacx/SHDateFormatter
 * branch            develop    -> FETCH_HEAD
 * [new branch]      develop    -> origin/develop
HEAD is now at dc863e8 Add dome more time zones
Cloned https://github.com/blackjacx/SHDateFormatter.git
Revision (git rev-parse @):
dc863e8f18deb30f51655b85411d13d6f25e1da3
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/blackjacx/SHDateFormatter.git at develop
Fetching https://github.com/mattgallagher/CwlCatchException.git
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching https://github.com/Quick/Nimble
Fetching https://github.com/Quick/Quick
[1/455] Fetching cwlcatchexception
[193/1712] Fetching cwlcatchexception, cwlpreconditiontesting
[1713/16435] Fetching cwlcatchexception, cwlpreconditiontesting, quick
[16436/35653] Fetching cwlcatchexception, cwlpreconditiontesting, quick, nimble
Fetched https://github.com/Quick/Nimble from cache (2.45s)
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (2.45s)
Fetched https://github.com/Quick/Quick from cache (2.45s)
Computing version for https://github.com/Quick/Nimble
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (2.45s)
Computed https://github.com/Quick/Nimble at 10.0.0 (0.70s)
Computing version for https://github.com/Quick/Quick
Computed https://github.com/Quick/Quick at 5.0.1 (0.67s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.1.0 (0.65s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.1.1 (0.64s)
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.1.1
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 10.0.0
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.1.0
Creating working copy for https://github.com/Quick/Quick
Working copy of https://github.com/Quick/Quick resolved at 5.0.1
========================================
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": "shdateformatter",
      "name": "SHDateFormatter",
      "url": "https://github.com/blackjacx/SHDateFormatter.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SHDateFormatter",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/blackjacx/SHDateFormatter.git
[1/1634] Fetching shdateformatter
Fetched https://github.com/blackjacx/SHDateFormatter.git from cache (1.00s)
Creating working copy for https://github.com/blackjacx/SHDateFormatter.git
Working copy of https://github.com/blackjacx/SHDateFormatter.git resolved at develop (dc863e8)
warning: '.resolve-product-dependencies': dependency 'shdateformatter' 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/blackjacx/SHDateFormatter.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/7] Compiling SHDateFormatter TimeZone+Extensions.swift
[4/7] Compiling SHDateFormatter SHDateFormatter.swift
/Users/admin/builder/spi-builder-workspace/Source/SHDateFormatter/Classes/SHDateFormatter.swift:36:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SHDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 32 | }
 33 |
 34 | public struct SHDateFormatter {
    |               `- note: consider making struct 'SHDateFormatter' conform to the 'Sendable' protocol
 35 |
 36 |     public static let shared = SHDateFormatter()
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SHDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'shared' 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
 37 |
 38 |     public static func is12hFormat(_ locale: Locale = Locale.current) -> Bool {
/Users/admin/builder/spi-builder-workspace/Source/SHDateFormatter/Classes/SHDateFormatter.swift:45:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 43 |
 44 |     static let formatter = DateFormatter()
 45 |     static let iso8601Formatter = ISO8601DateFormatter()
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
 46 |     static let serialDispatchQueue = DispatchQueue(label: "com.dateFormatter.globalSerialDispatchQueue")
 47 |
Foundation.ISO8601DateFormatter:2:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | @available(macOS 10.12, *)
 2 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 3 |     open var timeZone: TimeZone! { get set }
 4 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[5/7] Emitting module SHDateFormatter
/Users/admin/builder/spi-builder-workspace/Source/SHDateFormatter/Classes/SHDateFormatter.swift:36:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SHDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 32 | }
 33 |
 34 | public struct SHDateFormatter {
    |               `- note: consider making struct 'SHDateFormatter' conform to the 'Sendable' protocol
 35 |
 36 |     public static let shared = SHDateFormatter()
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SHDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'shared' 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
 37 |
 38 |     public static func is12hFormat(_ locale: Locale = Locale.current) -> Bool {
/Users/admin/builder/spi-builder-workspace/Source/SHDateFormatter/Classes/SHDateFormatter.swift:45:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 43 |
 44 |     static let formatter = DateFormatter()
 45 |     static let iso8601Formatter = ISO8601DateFormatter()
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
 46 |     static let serialDispatchQueue = DispatchQueue(label: "com.dateFormatter.globalSerialDispatchQueue")
 47 |
Foundation.ISO8601DateFormatter:2:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | @available(macOS 10.12, *)
 2 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 3 |     open var timeZone: TimeZone! { get set }
 4 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[6/7] Compiling SHDateFormatter SHDateFormatter+Extension.swift
[7/7] Compiling SHDateFormatter Date+Utils.swift
Build complete! (9.87s)
Build complete.
{
  "dependencies" : [
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      "requirement" : {
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            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
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      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick"
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    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
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            "upper_bound" : "11.0.0"
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      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
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  "manifest_display_name" : "SHDateFormatter",
  "name" : "SHDateFormatter",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
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      "version" : "13.0"
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    {
      "name" : "watchos",
      "version" : "5.0"
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  "products" : [
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      "name" : "SHDateFormatter",
      "targets" : [
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      "type" : {
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      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SHDateFormatterTests",
      "module_type" : "SwiftTarget",
      "name" : "SHDateFormatterTests",
      "path" : "Tests/SHDateFormatterTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "DateFormatterTests.swift"
      ],
      "target_dependencies" : [
        "SHDateFormatter"
      ],
      "type" : "test"
    },
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      "c99name" : "SHDateFormatter",
      "module_type" : "SwiftTarget",
      "name" : "SHDateFormatter",
      "path" : "Source/SHDateFormatter",
      "product_memberships" : [
        "SHDateFormatter"
      ],
      "sources" : [
        "Classes/Date+Utils.swift",
        "Classes/SHDateFormatter+Extension.swift",
        "Classes/SHDateFormatter.swift",
        "Classes/TimeZone+Extensions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.4"
}
✅  Doc result (pending) reported
========================================
GenerateDocs
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Generating docs at path:  $PWD/.docs/blackjacx/shdateformatter/develop
Repository:               blackjacx/SHDateFormatter
Swift version used:       6.0
Target:                   SHDateFormatter
Extracting symbol information for 'SHDateFormatter'...
Finished extracting symbol information for 'SHDateFormatter'. (2.78s)
Building documentation for 'SHDateFormatter'...
Finished building documentation for 'SHDateFormatter' (0.15s)
Generated documentation archive at:
  /Users/admin/builder/spi-builder-workspace/.docs/blackjacx/shdateformatter/develop
Fetching https://github.com/swiftlang/swift-docc-plugin
Updating https://github.com/Quick/Nimble
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Updated https://github.com/Quick/Nimble (0.60s)
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[55/61] Compiling snippet_extract URL+Status.swift
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[57/61] Compiling snippet_extract SnippetBuildCommand.swift
[58/61] Emitting module snippet_extract
[58/61] Write Objects.LinkFileList
[59/61] Linking snippet-extract-tool
[60/61] Applying snippet-extract-tool
Build of product 'snippet-extract' complete! (4.79s)
Building for debugging...
[0/1] Write swift-version--7754E27361AE5C74.txt
[2/6] Compiling SHDateFormatter TimeZone+Extensions.swift
[3/6] Compiling SHDateFormatter SHDateFormatter.swift
[4/6] Emitting module SHDateFormatter
[5/6] Compiling SHDateFormatter Date+Utils.swift
[6/6] Compiling SHDateFormatter SHDateFormatter+Extension.swift
Build of target: 'SHDateFormatter' complete! (0.60s)
     138
2	/Users/admin/builder/spi-builder-workspace/.docs/blackjacx/shdateformatter/develop
✅  Doc result (uploading) reported
========================================
SyncDocs
========================================
Doc archive source directory: $PWD/.docs/blackjacx/shdateformatter/develop
File count: 138
Doc size:   2.0MB
Preparing doc bundle ...
Uploading prod-blackjacx-shdateformatter-develop-14e07296.zip to s3://spi-docs-inbox/prod-blackjacx-shdateformatter-develop-14e07296.zip
Copying... [16%]
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Done.