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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 Chronicle, reference main (99b0ea), with Swift 6.1 for Linux on 26 Apr 2025 13:34:38 UTC.

Swift 6 data race errors: 5

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/0xLeif/Chronicle.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/0xLeif/Chronicle
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 99b0ea8 Update README.md
Cloned https://github.com/0xLeif/Chronicle.git
Revision (git rev-parse @):
99b0ea8460fb6c83b3130fca65a1571b80cfe9cb
SUCCESS checkout https://github.com/0xLeif/Chronicle.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/0xLeif/Chronicle.git
https://github.com/0xLeif/Chronicle.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Chronicle",
  "name" : "Chronicle",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Chronicle",
      "targets" : [
        "Chronicle"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ChronicleTests",
      "module_type" : "SwiftTarget",
      "name" : "ChronicleTests",
      "path" : "Tests/ChronicleTests",
      "sources" : [
        "ChronicalTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Chronicle"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Chronicle",
      "module_type" : "SwiftTarget",
      "name" : "Chronicle",
      "path" : "Sources/Chronicle",
      "product_memberships" : [
        "Chronicle"
      ],
      "sources" : [
        "Chronicle+DefaultFormatters.swift",
        "Chronicle+DefaultHandlers.swift",
        "Chronicle.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/6] Compiling Chronicle Chronicle.swift
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:21:27: warning: static property 'successEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
19 | public struct Chronicle {
20 |     public enum LogLevel {
21 |         public static var successEmoji: String = "✅"
   |                           |- warning: static property 'successEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'successEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'successEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:22:27: warning: static property 'infoEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
20 |     public enum LogLevel {
21 |         public static var successEmoji: String = "✅"
22 |         public static var infoEmoji: String = "ℹ️"
   |                           |- warning: static property 'infoEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'infoEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'infoEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:23:27: warning: static property 'warningEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |         public static var successEmoji: String = "✅"
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
   |                           |- warning: static property 'warningEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'warningEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'warningEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
24 |         public static var errorEmoji: String = "❗️"
25 |         public static var fatalEmoji: String = "🚨"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:24:27: warning: static property 'errorEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
   |                           |- warning: static property 'errorEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'errorEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'errorEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
25 |         public static var fatalEmoji: String = "🚨"
26 |
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:25:27: warning: static property 'fatalEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
25 |         public static var fatalEmoji: String = "🚨"
   |                           |- warning: static property 'fatalEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'fatalEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'fatalEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
26 |
27 |         case success(String)
[4/6] Emitting module Chronicle
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:21:27: warning: static property 'successEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
19 | public struct Chronicle {
20 |     public enum LogLevel {
21 |         public static var successEmoji: String = "✅"
   |                           |- warning: static property 'successEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'successEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'successEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:22:27: warning: static property 'infoEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
20 |     public enum LogLevel {
21 |         public static var successEmoji: String = "✅"
22 |         public static var infoEmoji: String = "ℹ️"
   |                           |- warning: static property 'infoEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'infoEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'infoEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:23:27: warning: static property 'warningEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |         public static var successEmoji: String = "✅"
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
   |                           |- warning: static property 'warningEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'warningEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'warningEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
24 |         public static var errorEmoji: String = "❗️"
25 |         public static var fatalEmoji: String = "🚨"
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:24:27: warning: static property 'errorEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
22 |         public static var infoEmoji: String = "ℹ️"
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
   |                           |- warning: static property 'errorEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'errorEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'errorEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
25 |         public static var fatalEmoji: String = "🚨"
26 |
/host/spi-builder-workspace/Sources/Chronicle/Chronicle.swift:25:27: warning: static property 'fatalEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
23 |         public static var warningEmoji: String = "⚠️"
24 |         public static var errorEmoji: String = "❗️"
25 |         public static var fatalEmoji: String = "🚨"
   |                           |- warning: static property 'fatalEmoji' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: convert 'fatalEmoji' to a 'let' constant to make 'Sendable' shared state immutable
   |                           |- note: add '@MainActor' to make static property 'fatalEmoji' part of global actor 'MainActor'
   |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
26 |
27 |         case success(String)
[5/6] Compiling Chronicle Chronicle+DefaultHandlers.swift
[6/6] Compiling Chronicle Chronicle+DefaultFormatters.swift
Build complete! (5.35s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Chronicle",
  "name" : "Chronicle",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Chronicle",
      "targets" : [
        "Chronicle"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ChronicleTests",
      "module_type" : "SwiftTarget",
      "name" : "ChronicleTests",
      "path" : "Tests/ChronicleTests",
      "sources" : [
        "ChronicalTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Chronicle"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Chronicle",
      "module_type" : "SwiftTarget",
      "name" : "Chronicle",
      "path" : "Sources/Chronicle",
      "product_memberships" : [
        "Chronicle"
      ],
      "sources" : [
        "Chronicle+DefaultFormatters.swift",
        "Chronicle+DefaultHandlers.swift",
        "Chronicle.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.