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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 SION, reference main (9b38cb), with Swift 6.1 for Linux on 26 Apr 2025 20:14:01 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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/dankogai/swift-sion.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/dankogai/swift-sion
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 9b38cba switch trigger to on:push:tags
Cloned https://github.com/dankogai/swift-sion.git
Revision (git rev-parse @):
9b38cbab1a1f44fc1131e5738c81a2b44f046554
SUCCESS checkout https://github.com/dankogai/swift-sion.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/dankogai/swift-sion.git
https://github.com/dankogai/swift-sion.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SION",
  "name" : "SION",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SION",
      "targets" : [
        "SION"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "SIONRun",
      "targets" : [
        "SIONRun"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SIONTests",
      "module_type" : "SwiftTarget",
      "name" : "SIONTests",
      "path" : "Tests/SIONTests",
      "sources" : [
        "SIONTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SION"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SIONRun",
      "module_type" : "SwiftTarget",
      "name" : "SIONRun",
      "path" : "Sources/SIONRun",
      "product_memberships" : [
        "SIONRun"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SION"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SION",
      "module_type" : "SwiftTarget",
      "name" : "SION",
      "path" : "Sources/SION",
      "product_memberships" : [
        "SION",
        "SIONRun"
      ],
      "sources" : [
        "SION.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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...
[0/9] Write sources
[2/9] Write swift-version-24593BA9C3E375BF.txt
[4/11] Emitting module SION
/host/spi-builder-workspace/Sources/SION/SION.swift:139:1: warning: extension declares a conformance of imported type 'Data' to imported protocols 'ExpressibleByStringLiteral', 'ExpressibleByExtendedGraphemeClusterLiteral', 'ExpressibleByUnicodeScalarLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
 137 |     }
 138 | }
 139 | extension Data:ExpressibleByStringLiteral {
     | |- warning: extension declares a conformance of imported type 'Data' to imported protocols 'ExpressibleByStringLiteral', 'ExpressibleByExtendedGraphemeClusterLiteral', 'ExpressibleByUnicodeScalarLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
     | `- note: add '@retroactive' to silence this warning
 140 |     public typealias StringLiteralType = String
 141 |     public init(stringLiteral value:StringLiteralType) {
/host/spi-builder-workspace/Sources/SION/SION.swift:145:1: warning: extension declares a conformance of imported type 'Date' to imported protocol 'ExpressibleByFloatLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
 143 |     }
 144 | }
 145 | extension Date:ExpressibleByFloatLiteral {
     | |- warning: extension declares a conformance of imported type 'Date' to imported protocol 'ExpressibleByFloatLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
     | `- note: add '@retroactive' to silence this warning
 146 |     public typealias FloatLiteralType = Double
 147 |     public init(floatLiteral value:FloatLiteralType) {
/host/spi-builder-workspace/Sources/SION/SION.swift:15:10: warning: associated value 'Error' of 'Sendable'-conforming enum 'SION' has non-sendable type 'SION.SIONError'; this is an error in the Swift 6 language mode
  13 |     public typealias Value  = SION
  14 |     public typealias Index  = Int
  15 |     case Error(SIONError)
     |          `- warning: associated value 'Error' of 'Sendable'-conforming enum 'SION' has non-sendable type 'SION.SIONError'; this is an error in the Swift 6 language mode
  16 |     case Nil
  17 |     case Bool(Bool)
     :
 702 | }
 703 | extension SION {
 704 |     public enum SIONError : Equatable {
     |                 `- note: consider making enum 'SIONError' conform to the 'Sendable' protocol
 705 |         case notASIONType
 706 |         case notIterable(SION.ContentType)
[5/11] Compiling SION SION.swift
/host/spi-builder-workspace/Sources/SION/SION.swift:139:1: warning: extension declares a conformance of imported type 'Data' to imported protocols 'ExpressibleByStringLiteral', 'ExpressibleByExtendedGraphemeClusterLiteral', 'ExpressibleByUnicodeScalarLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
 137 |     }
 138 | }
 139 | extension Data:ExpressibleByStringLiteral {
     | |- warning: extension declares a conformance of imported type 'Data' to imported protocols 'ExpressibleByStringLiteral', 'ExpressibleByExtendedGraphemeClusterLiteral', 'ExpressibleByUnicodeScalarLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
     | `- note: add '@retroactive' to silence this warning
 140 |     public typealias StringLiteralType = String
 141 |     public init(stringLiteral value:StringLiteralType) {
/host/spi-builder-workspace/Sources/SION/SION.swift:145:1: warning: extension declares a conformance of imported type 'Date' to imported protocol 'ExpressibleByFloatLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
 143 |     }
 144 | }
 145 | extension Date:ExpressibleByFloatLiteral {
     | |- warning: extension declares a conformance of imported type 'Date' to imported protocol 'ExpressibleByFloatLiteral'; this will not behave correctly if the owners of 'FoundationEssentials' introduce this conformance in the future
     | `- note: add '@retroactive' to silence this warning
 146 |     public typealias FloatLiteralType = Double
 147 |     public init(floatLiteral value:FloatLiteralType) {
/host/spi-builder-workspace/Sources/SION/SION.swift:15:10: warning: associated value 'Error' of 'Sendable'-conforming enum 'SION' has non-sendable type 'SION.SIONError'; this is an error in the Swift 6 language mode
  13 |     public typealias Value  = SION
  14 |     public typealias Index  = Int
  15 |     case Error(SIONError)
     |          `- warning: associated value 'Error' of 'Sendable'-conforming enum 'SION' has non-sendable type 'SION.SIONError'; this is an error in the Swift 6 language mode
  16 |     case Nil
  17 |     case Bool(Bool)
     :
 702 | }
 703 | extension SION {
 704 |     public enum SIONError : Equatable {
     |                 `- note: consider making enum 'SIONError' conform to the 'Sendable' protocol
 705 |         case notASIONType
 706 |         case notIterable(SION.ContentType)
[6/12] Wrapping AST for SION for debugging
[7/12] Write Objects.LinkFileList
[9/14] Compiling SIONRun main.swift
[10/14] Emitting module SIONRun
[10/15] Linking libSION.so
[12/15] Wrapping AST for SIONRun for debugging
[13/15] Write Objects.LinkFileList
[14/15] Linking SIONRun
Build complete! (10.08s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SION",
  "name" : "SION",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SION",
      "targets" : [
        "SION"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "SIONRun",
      "targets" : [
        "SIONRun"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SIONTests",
      "module_type" : "SwiftTarget",
      "name" : "SIONTests",
      "path" : "Tests/SIONTests",
      "sources" : [
        "SIONTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SION"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SIONRun",
      "module_type" : "SwiftTarget",
      "name" : "SIONRun",
      "path" : "Sources/SIONRun",
      "product_memberships" : [
        "SIONRun"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SION"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SION",
      "module_type" : "SwiftTarget",
      "name" : "SION",
      "path" : "Sources/SION",
      "product_memberships" : [
        "SION",
        "SIONRun"
      ],
      "sources" : [
        "SION.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.