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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 0.1.5 (6f8f62), with Swift 6.1 for Linux on 25 Apr 2025 08:08:10 UTC.

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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/zonble/turtlebuilder.git
Reference: 0.1.5
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/zonble/turtlebuilder
 * tag               0.1.5      -> FETCH_HEAD
HEAD is now at 6f8f626 Updates commands.
Cloned https://github.com/zonble/turtlebuilder.git
Revision (git rev-parse @):
6f8f626109284508900de845b53b951f634638ce
SUCCESS checkout https://github.com/zonble/turtlebuilder.git at 0.1.5
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/zonble/turtlebuilder.git
https://github.com/zonble/turtlebuilder.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TurtleBuilder",
  "name" : "TurtleBuilder",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TurtleBuilder",
      "targets" : [
        "TurtleBuilder",
        "TurtleView"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TurtleView",
      "module_type" : "SwiftTarget",
      "name" : "TurtleView",
      "path" : "Sources/TurtleView",
      "product_memberships" : [
        "TurtleBuilder"
      ],
      "sources" : [
        "AnimatedTurtleView.swift",
        "TurtleView.swift",
        "Utile.swift"
      ],
      "target_dependencies" : [
        "TurtleBuilder"
      ],
      "type" : "library"
    },
    {
      "c99name" : "TurtleBuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "TurtleBuilderTests",
      "path" : "Tests/TurtleBuilderTests",
      "sources" : [
        "TurtleBuilderTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "TurtleBuilder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TurtleBuilder",
      "module_type" : "SwiftTarget",
      "name" : "TurtleBuilder",
      "path" : "Sources/TurtleBuilder",
      "product_memberships" : [
        "TurtleBuilder"
      ],
      "sources" : [
        "TurtleBuilder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/5] Emitting module TurtleBuilder
/host/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 {
/host/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
/host/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 {
/host/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 |
[7/10] Compiling TurtleView Utile.swift
/host/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)
[8/10] Emitting module TurtleView
/host/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 |
[9/10] Compiling TurtleView AnimatedTurtleView.swift
/host/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 |
[10/10] Compiling TurtleView TurtleView.swift
/host/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 ...
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 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
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/3] Compiling TurtleBuilder TurtleBuilder.swift
/host/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 {
/host/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] Emitting module TurtleBuilder
/host/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 {
/host/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 |
[5/8] Compiling TurtleView TurtleView.swift
/host/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 |
[6/8] Compiling TurtleView Utile.swift
/host/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)
[7/8] Emitting module TurtleView
/host/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 |
[8/8] Compiling TurtleView AnimatedTurtleView.swift
/host/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 linux