The Swift Package Index logo.Swift Package Index

Build Information

Successful build of Chronometer, reference main (99d4f4), with Swift 6.1 for macOS (SPM) on 11 Jul 2025 05:09:23 UTC.

Swift 6 data race errors: 2

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: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/KittyMac/Chronometer.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/KittyMac/Chronometer
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 99d4f41 remove platforms from package
Cloned https://github.com/KittyMac/Chronometer.git
Revision (git rev-parse @):
99d4f4137837a28e1e294eb69ac66ad53c0934d3
SUCCESS checkout https://github.com/KittyMac/Chronometer.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": "chronometer",
      "name": "Chronometer",
      "url": "https://github.com/KittyMac/Chronometer.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Chronometer",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/KittyMac/Chronometer.git
[1/195] Fetching chronometer
Fetched https://github.com/KittyMac/Chronometer.git from cache (0.96s)
Creating working copy for https://github.com/KittyMac/Chronometer.git
Working copy of https://github.com/KittyMac/Chronometer.git resolved at main (99d4f41)
warning: '.resolve-product-dependencies': dependency 'chronometer' 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/KittyMac/Chronometer.git
https://github.com/KittyMac/Chronometer.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Chronometer",
  "name" : "Chronometer",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Chronometer",
      "targets" : [
        "Chronometer"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ChronometerTests",
      "module_type" : "SwiftTarget",
      "name" : "ChronometerTests",
      "path" : "Tests/ChronometerTests",
      "sources" : [
        "Tests.swift",
        "TestsBase.swift"
      ],
      "target_dependencies" : [
        "Chronometer"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Chronometer",
      "module_type" : "SwiftTarget",
      "name" : "Chronometer",
      "path" : "Sources/Chronometer",
      "product_memberships" : [
        "Chronometer"
      ],
      "sources" : [
        "Chronometer.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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
[3/4] Emitting module Chronometer
/Users/admin/builder/spi-builder-workspace/Sources/Chronometer/Chronometer.swift:73:17: warning: var 'allDateFormats' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 71 | }
 72 |
 73 | fileprivate var allDateFormats = [DateFormat]()
    |                 |- warning: var 'allDateFormats' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                 |- note: convert 'allDateFormats' to a 'let' constant to make 'Sendable' shared state immutable
    |                 |- note: add '@MainActor' to make var 'allDateFormats' part of global actor 'MainActor'
    |                 `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 74 | fileprivate var allDateFormatsLock = NSLock()
 75 | fileprivate func initDateFormats() {
/Users/admin/builder/spi-builder-workspace/Sources/Chronometer/Chronometer.swift:74:17: warning: var 'allDateFormatsLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 72 |
 73 | fileprivate var allDateFormats = [DateFormat]()
 74 | fileprivate var allDateFormatsLock = NSLock()
    |                 |- warning: var 'allDateFormatsLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                 |- note: convert 'allDateFormatsLock' to a 'let' constant to make 'Sendable' shared state immutable
    |                 |- note: add '@MainActor' to make var 'allDateFormatsLock' part of global actor 'MainActor'
    |                 `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 75 | fileprivate func initDateFormats() {
 76 |     guard allDateFormats.count == 0 else { return }
[4/4] Compiling Chronometer Chronometer.swift
/Users/admin/builder/spi-builder-workspace/Sources/Chronometer/Chronometer.swift:73:17: warning: var 'allDateFormats' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 71 | }
 72 |
 73 | fileprivate var allDateFormats = [DateFormat]()
    |                 |- warning: var 'allDateFormats' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                 |- note: convert 'allDateFormats' to a 'let' constant to make 'Sendable' shared state immutable
    |                 |- note: add '@MainActor' to make var 'allDateFormats' part of global actor 'MainActor'
    |                 `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 74 | fileprivate var allDateFormatsLock = NSLock()
 75 | fileprivate func initDateFormats() {
/Users/admin/builder/spi-builder-workspace/Sources/Chronometer/Chronometer.swift:74:17: warning: var 'allDateFormatsLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 72 |
 73 | fileprivate var allDateFormats = [DateFormat]()
 74 | fileprivate var allDateFormatsLock = NSLock()
    |                 |- warning: var 'allDateFormatsLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                 |- note: convert 'allDateFormatsLock' to a 'let' constant to make 'Sendable' shared state immutable
    |                 |- note: add '@MainActor' to make var 'allDateFormatsLock' part of global actor 'MainActor'
    |                 `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 75 | fileprivate func initDateFormats() {
 76 |     guard allDateFormats.count == 0 else { return }
Build complete! (3.38s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Chronometer",
  "name" : "Chronometer",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Chronometer",
      "targets" : [
        "Chronometer"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ChronometerTests",
      "module_type" : "SwiftTarget",
      "name" : "ChronometerTests",
      "path" : "Tests/ChronometerTests",
      "sources" : [
        "Tests.swift",
        "TestsBase.swift"
      ],
      "target_dependencies" : [
        "Chronometer"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Chronometer",
      "module_type" : "SwiftTarget",
      "name" : "Chronometer",
      "path" : "Sources/Chronometer",
      "product_memberships" : [
        "Chronometer"
      ],
      "sources" : [
        "Chronometer.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.