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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 Burritos, reference master (309dbe), with Swift 6.1 for Linux on 25 Apr 2025 23:09:17 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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/guillermomuntaner/Burritos.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/guillermomuntaner/Burritos
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 309dbe1 Limited dynamic UIColor constructor to iOS and tvOS
Cloned https://github.com/guillermomuntaner/Burritos.git
Revision (git rev-parse @):
309dbe1b5b3af8839ca6a7ebb2ad6ddf041bf420
SUCCESS checkout https://github.com/guillermomuntaner/Burritos.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/guillermomuntaner/Burritos.git
https://github.com/guillermomuntaner/Burritos.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Burritos",
  "name" : "Burritos",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
      "name" : "Burritos",
      "targets" : [
        "AtomicWrite",
        "Clamping",
        "Copying",
        "DefaultValue",
        "DynamicUIColor",
        "EnvironmentVariable",
        "Expirable",
        "LateInit",
        "Lazy",
        "LazyConstant",
        "Trimmed",
        "UndoRedo",
        "UserDefault"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "UserDefaultTests",
      "module_type" : "SwiftTarget",
      "name" : "UserDefaultTests",
      "path" : "Tests/UserDefaultTests",
      "sources" : [
        "UserDefaultTests.swift"
      ],
      "target_dependencies" : [
        "UserDefault"
      ],
      "type" : "test"
    },
    {
      "c99name" : "UserDefault",
      "module_type" : "SwiftTarget",
      "name" : "UserDefault",
      "path" : "Sources/UserDefault",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "UserDefault.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "UndoRedoTests",
      "module_type" : "SwiftTarget",
      "name" : "UndoRedoTests",
      "path" : "Tests/UndoRedoTests",
      "sources" : [
        "UndoRedoTests.swift"
      ],
      "target_dependencies" : [
        "UndoRedo"
      ],
      "type" : "test"
    },
    {
      "c99name" : "UndoRedo",
      "module_type" : "SwiftTarget",
      "name" : "UndoRedo",
      "path" : "Sources/UndoRedo",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "UndoRedo.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "TrimmedTests",
      "module_type" : "SwiftTarget",
      "name" : "TrimmedTests",
      "path" : "Tests/TrimmedTests",
      "sources" : [
        "TrimmedTests.swift"
      ],
      "target_dependencies" : [
        "Trimmed"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Trimmed",
      "module_type" : "SwiftTarget",
      "name" : "Trimmed",
      "path" : "Sources/Trimmed",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Trimmed.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "LazyTests",
      "module_type" : "SwiftTarget",
      "name" : "LazyTests",
      "path" : "Tests/LazyTests",
      "sources" : [
        "LazyConstantTests.swift",
        "LazyTests.swift"
      ],
      "target_dependencies" : [
        "Lazy",
        "LazyConstant"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LazyConstant",
      "module_type" : "SwiftTarget",
      "name" : "LazyConstant",
      "path" : "Sources/LazyConstant",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "LazyConstant.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Lazy",
      "module_type" : "SwiftTarget",
      "name" : "Lazy",
      "path" : "Sources/Lazy",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Lazy.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "LateInitTests",
      "module_type" : "SwiftTarget",
      "name" : "LateInitTests",
      "path" : "Tests/LateInitTests",
      "sources" : [
        "LateInitTests.swift"
      ],
      "target_dependencies" : [
        "LateInit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LateInit",
      "module_type" : "SwiftTarget",
      "name" : "LateInit",
      "path" : "Sources/LateInit",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "LateInit.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ExpirableTests",
      "module_type" : "SwiftTarget",
      "name" : "ExpirableTests",
      "path" : "Tests/ExpirableTests",
      "sources" : [
        "ExpirableTests.swift"
      ],
      "target_dependencies" : [
        "Expirable"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Expirable",
      "module_type" : "SwiftTarget",
      "name" : "Expirable",
      "path" : "Sources/Expirable",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Expirable.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "EnvironmentVariableTests",
      "module_type" : "SwiftTarget",
      "name" : "EnvironmentVariableTests",
      "path" : "Tests/EnvironmentVariableTests",
      "sources" : [
        "EnvironmentVariableTests.swift"
      ],
      "target_dependencies" : [
        "EnvironmentVariable"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EnvironmentVariable",
      "module_type" : "SwiftTarget",
      "name" : "EnvironmentVariable",
      "path" : "Sources/EnvironmentVariable",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "EnvironmentVariable.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DynamicUIColorTests",
      "module_type" : "SwiftTarget",
      "name" : "DynamicUIColorTests",
      "path" : "Tests/DynamicUIColorTests",
      "sources" : [
        "DynamicUIColorTests.swift"
      ],
      "target_dependencies" : [
        "DynamicUIColor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DynamicUIColor",
      "module_type" : "SwiftTarget",
      "name" : "DynamicUIColor",
      "path" : "Sources/DynamicUIColor",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "DynamicUIColor.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DefaultValueTests",
      "module_type" : "SwiftTarget",
      "name" : "DefaultValueTests",
      "path" : "Tests/DefaultValueTests",
      "sources" : [
        "DefaultValueTests.swift"
      ],
      "target_dependencies" : [
        "DefaultValue"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DefaultValue",
      "module_type" : "SwiftTarget",
      "name" : "DefaultValue",
      "path" : "Sources/DefaultValue",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "DefaultValue.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CopyingTests",
      "module_type" : "SwiftTarget",
      "name" : "CopyingTests",
      "path" : "Tests/CopyingTests",
      "sources" : [
        "CopyingTests.swift"
      ],
      "target_dependencies" : [
        "Copying"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Copying",
      "module_type" : "SwiftTarget",
      "name" : "Copying",
      "path" : "Sources/Copying",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Copying.swift"
      ],
      "type" : "library"
    },
    {
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      "module_type" : "SwiftTarget",
      "name" : "ClampingTests",
      "path" : "Tests/ClampingTests",
      "sources" : [
        "ClampingTests.swift"
      ],
      "target_dependencies" : [
        "Clamping"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Clamping",
      "module_type" : "SwiftTarget",
      "name" : "Clamping",
      "path" : "Sources/Clamping",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Clamping.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "AtomicWriteTests",
      "module_type" : "SwiftTarget",
      "name" : "AtomicWriteTests",
      "path" : "Tests/AtomicWriteTests",
      "sources" : [
        "AtomicWriteTests.swift"
      ],
      "target_dependencies" : [
        "AtomicWrite"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AtomicWrite",
      "module_type" : "SwiftTarget",
      "name" : "AtomicWrite",
      "path" : "Sources/AtomicWrite",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "AtomicWrite.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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...
[0/14] Write sources
[13/14] Write swift-version-24593BA9C3E375BF.txt
[15/26] Emitting module LateInit
[16/28] Emitting module Lazy
[17/30] Emitting module LazyConstant
[18/30] Compiling LazyConstant LazyConstant.swift
[19/31] Compiling LateInit LateInit.swift
[20/32] Compiling Lazy Lazy.swift
[24/39] Compiling DynamicUIColor DynamicUIColor.swift
[25/39] Emitting module DynamicUIColor
[27/40] Emitting module DefaultValue
[28/40] Compiling DefaultValue DefaultValue.swift
[30/45] Emitting module Clamping
[31/45] Compiling Clamping Clamping.swift
[32/46] Emitting module AtomicWrite
[34/46] Emitting module Copying
[35/46] Compiling Copying Copying.swift
[36/47] Emitting module Trimmed
[37/47] Compiling Trimmed Trimmed.swift
[38/48] Emitting module EnvironmentVariable
[39/48] Compiling EnvironmentVariable EnvironmentVariable.swift
[40/48] Emitting module UndoRedo
[41/48] Compiling UndoRedo UndoRedo.swift
[42/50] Emitting module UserDefault
[43/50] Compiling UserDefault UserDefault.swift
[44/50] Compiling AtomicWrite AtomicWrite.swift
[46/52] Emitting module Expirable
[47/52] Compiling Expirable Expirable.swift
Build complete! (8.41s)
Build complete.
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  ],
  "manifest_display_name" : "Burritos",
  "name" : "Burritos",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
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      "version" : "10.10"
    },
    {
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      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
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        "Lazy",
        "LazyConstant",
        "Trimmed",
        "UndoRedo",
        "UserDefault"
      ],
      "type" : {
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          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "UserDefaultTests",
      "module_type" : "SwiftTarget",
      "name" : "UserDefaultTests",
      "path" : "Tests/UserDefaultTests",
      "sources" : [
        "UserDefaultTests.swift"
      ],
      "target_dependencies" : [
        "UserDefault"
      ],
      "type" : "test"
    },
    {
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        "UserDefault.swift"
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      "module_type" : "SwiftTarget",
      "name" : "UndoRedoTests",
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      "sources" : [
        "UndoRedoTests.swift"
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      "target_dependencies" : [
        "UndoRedo"
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      "type" : "test"
    },
    {
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      ],
      "target_dependencies" : [
        "Trimmed"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Trimmed",
      "module_type" : "SwiftTarget",
      "name" : "Trimmed",
      "path" : "Sources/Trimmed",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Trimmed.swift"
      ],
      "type" : "library"
    },
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      "path" : "Tests/LazyTests",
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        "LazyTests.swift"
      ],
      "target_dependencies" : [
        "Lazy",
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      ],
      "type" : "test"
    },
    {
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      "sources" : [
        "LazyConstant.swift"
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      ],
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        "Lazy.swift"
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      "path" : "Tests/LateInitTests",
      "sources" : [
        "LateInitTests.swift"
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      "target_dependencies" : [
        "LateInit"
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      "type" : "test"
    },
    {
      "c99name" : "LateInit",
      "module_type" : "SwiftTarget",
      "name" : "LateInit",
      "path" : "Sources/LateInit",
      "product_memberships" : [
        "Burritos"
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      "sources" : [
        "LateInit.swift"
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      "type" : "library"
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    {
      "c99name" : "ExpirableTests",
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      "target_dependencies" : [
        "Expirable"
      ],
      "type" : "test"
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    {
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      "path" : "Sources/Expirable",
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        "Expirable.swift"
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      ],
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        "EnvironmentVariable"
      ],
      "type" : "test"
    },
    {
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      "path" : "Sources/EnvironmentVariable",
      "product_memberships" : [
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    },
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      "module_type" : "SwiftTarget",
      "name" : "DynamicUIColorTests",
      "path" : "Tests/DynamicUIColorTests",
      "sources" : [
        "DynamicUIColorTests.swift"
      ],
      "target_dependencies" : [
        "DynamicUIColor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DynamicUIColor",
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      "path" : "Sources/DynamicUIColor",
      "product_memberships" : [
        "Burritos"
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        "DynamicUIColor.swift"
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    },
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      "c99name" : "DefaultValueTests",
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      "name" : "DefaultValueTests",
      "path" : "Tests/DefaultValueTests",
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      "target_dependencies" : [
        "DefaultValue"
      ],
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    },
    {
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      "path" : "Sources/DefaultValue",
      "product_memberships" : [
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      ],
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        "DefaultValue.swift"
      ],
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    },
    {
      "c99name" : "CopyingTests",
      "module_type" : "SwiftTarget",
      "name" : "CopyingTests",
      "path" : "Tests/CopyingTests",
      "sources" : [
        "CopyingTests.swift"
      ],
      "target_dependencies" : [
        "Copying"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Copying",
      "module_type" : "SwiftTarget",
      "name" : "Copying",
      "path" : "Sources/Copying",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Copying.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ClampingTests",
      "module_type" : "SwiftTarget",
      "name" : "ClampingTests",
      "path" : "Tests/ClampingTests",
      "sources" : [
        "ClampingTests.swift"
      ],
      "target_dependencies" : [
        "Clamping"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Clamping",
      "module_type" : "SwiftTarget",
      "name" : "Clamping",
      "path" : "Sources/Clamping",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "Clamping.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "AtomicWriteTests",
      "module_type" : "SwiftTarget",
      "name" : "AtomicWriteTests",
      "path" : "Tests/AtomicWriteTests",
      "sources" : [
        "AtomicWriteTests.swift"
      ],
      "target_dependencies" : [
        "AtomicWrite"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AtomicWrite",
      "module_type" : "SwiftTarget",
      "name" : "AtomicWrite",
      "path" : "Sources/AtomicWrite",
      "product_memberships" : [
        "Burritos"
      ],
      "sources" : [
        "AtomicWrite.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
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
Done.