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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 JSON, reference master (e077d1), with Swift 6.1 for Linux on 25 Apr 2025 08:20:40 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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/dankogai/swift-json.git
Reference: master
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/dankogai/swift-json
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e077d1b Update README.md
Cloned https://github.com/dankogai/swift-json.git
Revision (git rev-parse @):
e077d1bc08b604f34a31dae29a5afaf424624a18
SUCCESS checkout https://github.com/dankogai/swift-json.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/dankogai/swift-json.git
https://github.com/dankogai/swift-json.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "JSON",
  "name" : "JSON",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JSON",
      "targets" : [
        "JSON"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "JSONRun",
      "targets" : [
        "JSONRun"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JSONTests",
      "module_type" : "SwiftTarget",
      "name" : "JSONTests",
      "path" : "Tests/JSONTests",
      "sources" : [
        "JSONTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JSONRun",
      "module_type" : "SwiftTarget",
      "name" : "JSONRun",
      "path" : "Sources/JSONRun",
      "product_memberships" : [
        "JSONRun"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "JSON",
      "module_type" : "SwiftTarget",
      "name" : "JSON",
      "path" : "Sources/JSON",
      "product_memberships" : [
        "JSON",
        "JSONRun"
      ],
      "sources" : [
        "JSON.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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...
[0/9] Write sources
[2/9] Write swift-version-24593BA9C3E375BF.txt
[4/11] Compiling JSON JSON.swift
/host/spi-builder-workspace/Sources/JSON/JSON.swift:32:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'JSON' to 'Hashable' by implementing 'hash(into:)' instead
 30 | }
 31 | extension JSON : Hashable {
 32 |     public var hashValue: Int {
    |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'JSON' to 'Hashable' by implementing 'hash(into:)' instead
 33 |         switch self {
 34 |         case .Error(let m):     fatalError("\(m)")
/host/spi-builder-workspace/Sources/JSON/JSON.swift:270:17: warning: variable 'kv' was never mutated; consider changing to 'let' constant
268 |             }
269 |         case .Object(let o):
270 |             var kv = o.map{ $0 }
    |                 `- warning: variable 'kv' was never mutated; consider changing to 'let' constant
271 |             var i = -1
272 |             return AnyIterator {
[5/11] Emitting module JSON
/host/spi-builder-workspace/Sources/JSON/JSON.swift:32:16: warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'JSON' to 'Hashable' by implementing 'hash(into:)' instead
 30 | }
 31 | extension JSON : Hashable {
 32 |     public var hashValue: Int {
    |                `- warning: 'Hashable.hashValue' is deprecated as a protocol requirement; conform type 'JSON' to 'Hashable' by implementing 'hash(into:)' instead
 33 |         switch self {
 34 |         case .Error(let m):     fatalError("\(m)")
[6/12] Wrapping AST for JSON for debugging
[7/12] Write Objects.LinkFileList
[8/14] Linking libJSON.so
[10/14] Emitting module JSONRun
[11/14] Compiling JSONRun main.swift
[12/15] Wrapping AST for JSONRun for debugging
[13/15] Write Objects.LinkFileList
[14/15] Linking JSONRun
Build complete! (8.80s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "JSON",
  "name" : "JSON",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JSON",
      "targets" : [
        "JSON"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "JSONRun",
      "targets" : [
        "JSONRun"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JSONTests",
      "module_type" : "SwiftTarget",
      "name" : "JSONTests",
      "path" : "Tests/JSONTests",
      "sources" : [
        "JSONTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JSONRun",
      "module_type" : "SwiftTarget",
      "name" : "JSONRun",
      "path" : "Sources/JSONRun",
      "product_memberships" : [
        "JSONRun"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "JSON",
      "module_type" : "SwiftTarget",
      "name" : "JSON",
      "path" : "Sources/JSON",
      "product_memberships" : [
        "JSON",
        "JSONRun"
      ],
      "sources" : [
        "JSON.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
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.