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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 main (2673a4), with Swift 6.1 for Linux on 26 Apr 2025 14:34:05 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/skelpo/json.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/skelpo/json
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2673a40 Merge pull request #8 from skelpo/fix-uint-singlevalue-coding
Cloned https://github.com/skelpo/json.git
Revision (git rev-parse @):
2673a405aaab323678a8fd118492b393ae45cebd
SUCCESS checkout https://github.com/skelpo/json.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/skelpo/json.git
https://github.com/skelpo/json.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "JSON",
  "name" : "JSON",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JSON",
      "targets" : [
        "JSON"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JSONTests",
      "module_type" : "SwiftTarget",
      "name" : "JSONTests",
      "path" : "Tests/JSONTests",
      "sources" : [
        "DecimalTests.swift",
        "JSONCodingTests.swift",
        "JSONTests.swift",
        "NestedData.swift",
        "WeatherModels.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JSON",
      "module_type" : "SwiftTarget",
      "name" : "JSON",
      "path" : "Sources/JSON",
      "product_memberships" : [
        "JSON"
      ],
      "sources" : [
        "Coder/Decoding/_JSONDecoder.swift",
        "Coder/Decoding/_JSONKeyedValueDecoder.swift",
        "Coder/Decoding/_JSONSingleValueDecoder.swift",
        "Coder/Decoding/_JSONUnkeyedDecoder.swift",
        "Coder/Encoding/_JSONEncoder.swift",
        "Coder/Encoding/_JSONKeyedEncoder.swift",
        "Coder/Encoding/_JSONSingleValueEncoder.swift",
        "Coder/Encoding/_JSONUnkeyedEncoder.swift",
        "Coder/JSON+Type.swift",
        "Coder/JSONCoder.swift",
        "JSON+Codable.swift",
        "JSON+ExpressibleByLiteral.swift",
        "JSON+JSONConvertible.swift",
        "JSON.swift",
        "JSONConvertible.swift",
        "Number.swift",
        "Operator.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
[3/18] Emitting module JSON
[4/20] Compiling JSON Number.swift
[5/20] Compiling JSON Operator.swift
[6/20] Compiling JSON _JSONUnkeyedEncoder.swift
[7/20] Compiling JSON JSON+Type.swift
[8/20] Compiling JSON JSON+ExpressibleByLiteral.swift
[9/20] Compiling JSON JSON+JSONConvertible.swift
[10/20] Compiling JSON _JSONUnkeyedDecoder.swift
[11/20] Compiling JSON _JSONEncoder.swift
[12/20] Compiling JSON JSONCoder.swift
[13/20] Compiling JSON JSON+Codable.swift
[14/20] Compiling JSON JSON.swift
[15/20] Compiling JSON JSONConvertible.swift
[16/20] Compiling JSON _JSONKeyedEncoder.swift
[17/20] Compiling JSON _JSONSingleValueEncoder.swift
[18/20] Compiling JSON _JSONDecoder.swift
[19/20] Compiling JSON _JSONKeyedValueDecoder.swift
[20/20] Compiling JSON _JSONSingleValueDecoder.swift
Build complete! (9.03s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "JSON",
  "name" : "JSON",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JSON",
      "targets" : [
        "JSON"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JSONTests",
      "module_type" : "SwiftTarget",
      "name" : "JSONTests",
      "path" : "Tests/JSONTests",
      "sources" : [
        "DecimalTests.swift",
        "JSONCodingTests.swift",
        "JSONTests.swift",
        "NestedData.swift",
        "WeatherModels.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "JSON"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JSON",
      "module_type" : "SwiftTarget",
      "name" : "JSON",
      "path" : "Sources/JSON",
      "product_memberships" : [
        "JSON"
      ],
      "sources" : [
        "Coder/Decoding/_JSONDecoder.swift",
        "Coder/Decoding/_JSONKeyedValueDecoder.swift",
        "Coder/Decoding/_JSONSingleValueDecoder.swift",
        "Coder/Decoding/_JSONUnkeyedDecoder.swift",
        "Coder/Encoding/_JSONEncoder.swift",
        "Coder/Encoding/_JSONKeyedEncoder.swift",
        "Coder/Encoding/_JSONSingleValueEncoder.swift",
        "Coder/Encoding/_JSONUnkeyedEncoder.swift",
        "Coder/JSON+Type.swift",
        "Coder/JSONCoder.swift",
        "JSON+Codable.swift",
        "JSON+ExpressibleByLiteral.swift",
        "JSON+JSONConvertible.swift",
        "JSON.swift",
        "JSONConvertible.swift",
        "Number.swift",
        "Operator.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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.