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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

Failed to build TurtleBuilder, reference master (ec5173), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 19:43:18 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/zonble/turtlebuilder.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/zonble/turtlebuilder
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at ec5173e Updates CI settings.
Cloned https://github.com/zonble/turtlebuilder.git
Revision (git rev-parse @):
ec5173ee410f45e3094cc90fae9c658961c9cf1a
SUCCESS checkout https://github.com/zonble/turtlebuilder.git at master
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "turtlebuilder",
      "name": "TurtleBuilder",
      "url": "https://github.com/zonble/turtlebuilder.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/turtlebuilder",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/zonble/turtlebuilder.git
[1/300] Fetching turtlebuilder
Fetched https://github.com/zonble/turtlebuilder.git from cache (0.82s)
Creating working copy for https://github.com/zonble/turtlebuilder.git
Working copy of https://github.com/zonble/turtlebuilder.git resolved at master (ec5173e)
warning: '.resolve-product-dependencies': dependency 'turtlebuilder' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/zonble/turtlebuilder.git
https://github.com/zonble/turtlebuilder.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TurtleBuilder",
  "name" : "TurtleBuilder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TurtleBuilder",
      "targets" : [
        "TurtleBuilder",
        "TurtleView"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TurtleView",
      "module_type" : "SwiftTarget",
      "name" : "TurtleView",
      "path" : "Sources/TurtleView",
      "product_memberships" : [
        "TurtleBuilder"
      ],
      "sources" : [
        "AnimatedTurtleView.swift",
        "TurtleView.swift",
        "Utile.swift"
      ],
      "target_dependencies" : [
        "TurtleBuilder"
      ],
      "type" : "library"
    },
    {
      "c99name" : "TurtleBuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "TurtleBuilderTests",
      "path" : "Tests/TurtleBuilderTests",
      "sources" : [
        "TurtleBuilderTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "TurtleBuilder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TurtleBuilder",
      "module_type" : "SwiftTarget",
      "name" : "TurtleBuilder",
      "path" : "Sources/TurtleBuilder",
      "product_memberships" : [
        "TurtleBuilder"
      ],
      "sources" : [
        "TurtleBuilder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/5] Emitting module TurtleBuilder
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:104:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
102 | }
103 |
104 | @_functionBuilder
    |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
105 | /// Function builder for `Turtle`
106 | public struct TurtleBuilder {
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:138:16: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
136 | 	}
137 |
138 | 	public private (set) lazy var lines = self.complie()
    |                `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
139 | }
140 |
[5/5] Compiling TurtleBuilder TurtleBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:104:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
102 | }
103 |
104 | @_functionBuilder
    |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
105 | /// Function builder for `Turtle`
106 | public struct TurtleBuilder {
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:138:16: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
136 | 	}
137 |
138 | 	public private (set) lazy var lines = self.complie()
    |                `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
139 | }
140 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/9] Emitting module TurtleView
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
[7/9] Compiling TurtleView AnimatedTurtleView.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
[8/9] Compiling TurtleView TurtleView.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
[9/9] Compiling TurtleView Utile.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/3] Emitting module TurtleBuilder
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:104:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
102 | }
103 |
104 | @_functionBuilder
    |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
105 | /// Function builder for `Turtle`
106 | public struct TurtleBuilder {
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:138:16: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
136 | 	}
137 |
138 | 	public private (set) lazy var lines = self.complie()
    |                `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
139 | }
140 |
[3/3] Compiling TurtleBuilder TurtleBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:104:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
102 | }
103 |
104 | @_functionBuilder
    |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
105 | /// Function builder for `Turtle`
106 | public struct TurtleBuilder {
/Users/admin/builder/spi-builder-workspace/Sources/TurtleBuilder/TurtleBuilder.swift:138:16: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
136 | 	}
137 |
138 | 	public private (set) lazy var lines = self.complie()
    |                `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
139 | }
140 |
[4/7] Compiling TurtleView Utile.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/7] Emitting module TurtleView
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
[6/7] Compiling TurtleView AnimatedTurtleView.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
[7/7] Compiling TurtleView TurtleView.swift
/Users/admin/builder/spi-builder-workspace/Sources/TurtleView/AnimatedTurtleView.swift:2:8: error: no such module 'UIKit'
  1 | import Foundation
  2 | import UIKit
    |        `- error: no such module 'UIKit'
  3 | import TurtleBuilder
  4 |
BUILD FAILURE 6.1 macosSpm