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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 Prefire, reference 4.1.0 (a83c9f), with Swift 6.0 for macOS (SPM) on 2 May 2025 15:04:19 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 4.61.3
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/BarredEwe/Prefire.git
Reference: 4.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/BarredEwe/Prefire
 * tag               4.1.0      -> FETCH_HEAD
HEAD is now at a83c9f6 Fixed indents in yaml for Playbook
Cloned https://github.com/BarredEwe/Prefire.git
Revision (git rev-parse @):
a83c9f6074f4d5a5ec194babb26d1e1e30288f6a
SUCCESS checkout https://github.com/BarredEwe/Prefire.git at 4.1.0
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Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/BarredEwe/Prefire.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin PrefirePlaybookPlugin
[2/2] Compiling plugin PrefireTestsPlugin
Building for debugging...
[2/4] Write sources
[3/4] Write swift-version-5BDAB9E9C0126B9D.txt
[5/15] Compiling Prefire PreviewLayout+Equatable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[6/16] Compiling Prefire Scale.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/16] Compiling Prefire LoadingTimeModifier.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[8/16] Compiling Prefire PlaybookView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[9/16] Emitting module Prefire
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[10/16] Compiling Prefire PrefireProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[11/16] Compiling Prefire PrefireSnapshot.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[12/16] Compiling Prefire TransformIf.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[13/16] Compiling Prefire PreferenceKeys.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[14/16] Compiling Prefire UIKitRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[15/16] Compiling Prefire PreviewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
[16/16] Compiling Prefire View+Prefire.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prefire/Preview/UIKitRepresentable.swift:2:8: error: no such module 'UIKit'
 1 | import SwiftUI
 2 | import UIKit
   |        `- error: no such module 'UIKit'
 3 |
 4 | public struct ViewRepresentable<WrappedView: UIView>: UIViewRepresentable {
BUILD FAILURE 6.0 macosSpm