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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 WindowKit, reference main (f46610), with Swift 6.0 for Linux on 29 Mar 2025 14:21:32 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/divadretlaw/WindowKit.git
Reference: main
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/divadretlaw/WindowKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at f466107 Cleanup
Cloned https://github.com/divadretlaw/WindowKit.git
Revision (git rev-parse @):
f4661072f62991067138f2a8a963c2b7985d07d1
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/divadretlaw/WindowKit.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/divadretlaw/WindowKit.git
https://github.com/divadretlaw/WindowKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "windowreader",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.0.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/divadretlaw/WindowReader"
    },
    {
      "identity" : "windowscenereader",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.2.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/divadretlaw/WindowSceneReader"
    }
  ],
  "manifest_display_name" : "WindowKit",
  "name" : "WindowKit",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "WindowKit",
      "targets" : [
        "WindowKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "WindowKit",
      "module_type" : "SwiftTarget",
      "name" : "WindowKit",
      "path" : "Sources/WindowKit",
      "product_dependencies" : [
        "WindowReader",
        "WindowSceneReader"
      ],
      "product_memberships" : [
        "WindowKit"
      ],
      "sources" : [
        "API.swift",
        "DynamicWindowKey.swift",
        "Environment/EnvironmentValuesHolder.swift",
        "Environment/WindowCoverDismissAction.swift",
        "Extensions/MainActor+Extensions.swift",
        "Extensions/UIViewController+Extensions.swift",
        "Logger.swift",
        "ViewModifier/TintApplier.swift",
        "WindowCover/WindowCover.swift",
        "WindowCover/WindowCoverConfiguration.swift",
        "WindowCover/WindowCoverHelper.swift",
        "WindowCover/WindowCoverHostingController.swift",
        "WindowCover/WindowItemCover.swift",
        "WindowCover/WindowItemCoverHelper.swift",
        "WindowKey.swift",
        "WindowManager.swift",
        "WindowOverlay/PassthroughWindow.swift",
        "WindowOverlay/WindowOverlay.swift",
        "WindowOverlay/WindowOverlayConfiguration.swift",
        "WindowOverlay/WindowOverlayHelper.swift",
        "WindowOverlay/WindowOverlayHostingController.swift",
        "WindowView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Fetching https://github.com/divadretlaw/WindowReader
Fetching https://github.com/divadretlaw/WindowSceneReader
[1/131] Fetching windowreader
[132/262] Fetching windowreader, windowscenereader
Fetched https://github.com/divadretlaw/WindowReader from cache (0.22s)
Fetched https://github.com/divadretlaw/WindowSceneReader from cache (0.22s)
Computing version for https://github.com/divadretlaw/WindowSceneReader
Computed https://github.com/divadretlaw/WindowSceneReader at 3.2.0 (0.54s)
Computing version for https://github.com/divadretlaw/WindowReader
Computed https://github.com/divadretlaw/WindowReader at 3.0.0 (0.53s)
Creating working copy for https://github.com/divadretlaw/WindowReader
Working copy of https://github.com/divadretlaw/WindowReader resolved at 3.0.0
Creating working copy for https://github.com/divadretlaw/WindowSceneReader
Working copy of https://github.com/divadretlaw/WindowSceneReader resolved at 3.2.0
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version-24593BA9C3E375BF.txt
[5/10] Compiling WindowReader WindowReader.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[6/10] Compiling WindowReader View+Window.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/10] Emitting module WindowReader
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[8/10] Compiling WindowReader Environment+Window.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[9/10] Compiling WindowReader WindowInjectView.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[10/10] Compiling WindowReader WindowReaderRepresentable.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/7] Emitting module WindowReader
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[3/7] Compiling WindowReader WindowReaderRepresentable.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[4/7] Compiling WindowReader WindowReader.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[5/7] Compiling WindowReader Environment+Window.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[6/7] Compiling WindowReader View+Window.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
[7/7] Compiling WindowReader WindowInjectView.swift
/host/spi-builder-workspace/.build/checkouts/WindowReader/Sources/WindowReader/Environment+Window.swift:8:8: error: no such module 'SwiftUI'
  6 | //
  7 |
  8 | import SwiftUI
    |        `- error: no such module 'SwiftUI'
  9 |
 10 | #if os(iOS) || os(tvOS) || os(visionOS)
BUILD FAILURE 6.0 linux