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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 ViewKit, reference 1.0.0 (dafb66), with Swift 6.1 for Linux on 27 Apr 2025 13:16:03 UTC.

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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/lucaswkuipers/ViewKit.git
Reference: 1.0.0
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/lucaswkuipers/ViewKit
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at dafb663 Fix sample
Cloned https://github.com/lucaswkuipers/ViewKit.git
Revision (git rev-parse @):
dafb6634b088d9ce653fb79d3dd848d73b5799bc
SUCCESS checkout https://github.com/lucaswkuipers/ViewKit.git at 1.0.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/lucaswkuipers/ViewKit.git
https://github.com/lucaswkuipers/ViewKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ViewKit",
  "name" : "ViewKit",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "ViewKit",
      "targets" : [
        "ViewKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ViewKitTests",
      "module_type" : "SwiftTarget",
      "name" : "ViewKitTests",
      "path" : "Tests/ViewKitTests",
      "sources" : [
        "UILabel+tests.swift"
      ],
      "target_dependencies" : [
        "ViewKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ViewKit",
      "module_type" : "SwiftTarget",
      "name" : "ViewKit",
      "path" : "Sources/ViewKit",
      "product_memberships" : [
        "ViewKit"
      ],
      "sources" : [
        "Filler.swift",
        "Internal/@_exported.swift",
        "Internal/Notification.swift",
        "Preview/UIViewPreview.swift",
        "ProgrammaticView.swift",
        "ProgrammaticViewBuilder.swift",
        "UIButton.swift",
        "UIControl.swift",
        "UIImageView.swift",
        "UILabel.swift",
        "UIStackView.swift",
        "UITextField.swift",
        "UIView.swift",
        "ViewController.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/16] Compiling ViewKit UIView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/17] Emitting module ViewKit
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[5/17] Compiling ViewKit ProgrammaticView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[6/17] Compiling ViewKit ProgrammaticViewBuilder.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[7/17] Compiling ViewKit Notification.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[8/17] Compiling ViewKit UIViewPreview.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[9/17] Compiling ViewKit Filler.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[10/17] Compiling ViewKit @_exported.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[11/17] Compiling ViewKit ViewController.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[12/17] Compiling ViewKit UIImageView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[13/17] Compiling ViewKit UILabel.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[14/17] Compiling ViewKit UIButton.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[15/17] Compiling ViewKit UIControl.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[16/17] Compiling ViewKit UIStackView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[17/17] Compiling ViewKit UITextField.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
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 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
[2/15] Compiling ViewKit UIButton.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[3/15] Compiling ViewKit UIControl.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[4/15] Compiling ViewKit Notification.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[5/15] Compiling ViewKit UIViewPreview.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[6/15] Compiling ViewKit UIImageView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[7/15] Compiling ViewKit UILabel.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[8/15] Compiling ViewKit ProgrammaticView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[9/15] Compiling ViewKit ProgrammaticViewBuilder.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[10/16] Emitting module ViewKit
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[11/16] Compiling ViewKit Filler.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[12/16] Compiling ViewKit @_exported.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[13/16] Compiling ViewKit UIView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[14/16] Compiling ViewKit UIStackView.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[15/16] Compiling ViewKit UITextField.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[16/16] Compiling ViewKit ViewController.swift
/host/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
BUILD FAILURE 6.1 linux