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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 XibKit, reference 2.0.3 (450bbb), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 10:55:56 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/NikSativa/XibKit.git
Reference: 2.0.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/NikSativa/XibKit
 * tag               2.0.3      -> FETCH_HEAD
HEAD is now at 450bbb9 lil upd dependency
Cloned https://github.com/NikSativa/XibKit.git
Revision (git rev-parse @):
450bbb9dc58f13786b1b4dfd90d2fe793b41d465
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/NikSativa/XibKit.git at 2.0.3
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/NikSativa/XibKit.git
https://github.com/NikSativa/XibKit.git
{
  "dependencies" : [
    {
      "identity" : "sprykit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.0.2",
            "upper_bound" : "3.1.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/NikSativa/SpryKit.git"
    }
  ],
  "manifest_display_name" : "XibKit",
  "name" : "XibKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "XibKit",
      "targets" : [
        "XibKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "XibKitTests",
      "module_type" : "SwiftTarget",
      "name" : "XibKitTests",
      "path" : "Tests",
      "product_dependencies" : [
        "SpryKit"
      ],
      "sources" : [
        "XibViewTests.swift",
        "views/TableViewCell.swift",
        "views/ViewController.swift",
        "views/XibViewMain.swift",
        "views/XibViewSub.swift",
        "views/XibViewWrongRoot.swift"
      ],
      "target_dependencies" : [
        "XibKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "XibKit",
      "module_type" : "SwiftTarget",
      "name" : "XibKit",
      "path" : "Source",
      "product_memberships" : [
        "XibKit"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Source/PrivacyInfo.xcprivacy",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "NCollectionReusableView.swift",
        "NCollectionViewCell.swift",
        "NTableViewCell.swift",
        "NTableViewHeaderFooterView.swift",
        "NView.swift",
        "NViewController.swift",
        "XibView.swift",
        "syncMain.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
Building for debugging...
[0/3] Write sources
[0/3] Copying PrivacyInfo.xcprivacy
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/13] Compiling XibKit NCollectionViewCell.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[5/13] Compiling XibKit NViewController.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[6/13] Compiling XibKit XibView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[7/13] Compiling XibKit resource_bundle_accessor.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[8/13] Compiling XibKit NView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[9/13] Compiling XibKit NTableViewHeaderFooterView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[10/13] Compiling XibKit NTableViewCell.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/13] Emitting module XibKit
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[12/13] Compiling XibKit NCollectionReusableView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[13/13] Compiling XibKit syncMain.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
Fetching https://github.com/NikSativa/SpryKit.git
[1/924] Fetching sprykit
Fetched https://github.com/NikSativa/SpryKit.git from cache (0.80s)
Computing version for https://github.com/NikSativa/SpryKit.git
Computed https://github.com/NikSativa/SpryKit.git at 3.0.2 (1.33s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching https://github.com/apple/swift-syntax.git
[1/1257] Fetching cwlpreconditiontesting
[1258/71502] Fetching cwlpreconditiontesting, swift-syntax
Fetched https://github.com/apple/swift-syntax.git from cache (3.05s)
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (3.05s)
Computing version for https://github.com/apple/swift-syntax.git
Computed https://github.com/apple/swift-syntax.git at 600.0.1 (4.16s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.54s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/455] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.69s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (1.27s)
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/NikSativa/SpryKit.git
Working copy of https://github.com/NikSativa/SpryKit.git resolved at 3.0.2
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
Creating working copy for https://github.com/apple/swift-syntax.git
Working copy of https://github.com/apple/swift-syntax.git resolved at 600.0.1
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
[2/11] Compiling XibKit NCollectionViewCell.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[3/11] Compiling XibKit NView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[4/11] Compiling XibKit NViewController.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[5/11] Compiling XibKit resource_bundle_accessor.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/11] Compiling XibKit syncMain.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[7/11] Emitting module XibKit
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[8/11] Compiling XibKit NCollectionReusableView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[9/11] Compiling XibKit XibView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[10/11] Compiling XibKit NTableViewCell.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
[11/11] Compiling XibKit NTableViewHeaderFooterView.swift
/Users/admin/builder/spi-builder-workspace/Source/NCollectionReusableView.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | @MainActor
warning: 'spi-builder-workspace': found 5 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/Tests/views/ViewController.storyboard
    /Users/admin/builder/spi-builder-workspace/Tests/views/TableViewCell.xib
    /Users/admin/builder/spi-builder-workspace/Tests/views/XibViewSub.xib
    /Users/admin/builder/spi-builder-workspace/Tests/views/XibViewMain.xib
    /Users/admin/builder/spi-builder-workspace/Tests/views/XibViewWrongRoot.xib
BUILD FAILURE 6.1 macosSpm