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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 XCTest, reference main (5c7856), with Swift 5.10 for macOS (SPM) on 14 Mar 2025 18:12:09 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-corelibs-xctest.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swift-corelibs-xctest
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 5c7856d Merge pull request #509 from compnerd/nesting
Cloned https://github.com/swiftlang/swift-corelibs-xctest.git
Revision (git rev-parse @):
5c7856dad282af5da0bd0bb26556aa74272f7bda
SUCCESS checkout https://github.com/swiftlang/swift-corelibs-xctest.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/swiftlang/swift-corelibs-xctest.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/4] Write sources
[1/4] Write swift-version-33747A42983211AE.txt
[3/34] Compiling XCTest XCTAssert.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[4/34] Compiling XCTest XCTSkip.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[5/34] Compiling XCTest XCTestCase+Performance.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[6/37] Compiling XCTest ArgumentParser.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[7/37] Compiling XCTest IgnoredErrors.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[8/37] Compiling XCTest ObjectWrapper.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[9/37] Compiling XCTest PerformanceMeter.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
error: emit-module command failed with exit code 1 (use -v to see invocation)
[10/37] Emitting module XCTest
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[11/37] Compiling XCTest PrintObserver.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[12/37] Compiling XCTest SourceLocation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[13/37] Compiling XCTest TestFiltering.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[14/37] Compiling XCTest TestListing.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[15/37] Compiling XCTest XCTestCase.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[16/37] Compiling XCTest XCTestCaseRun.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[17/37] Compiling XCTest XCTestErrors.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[18/37] Compiling XCTest XCTestRun.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[19/37] Compiling XCTest XCTestSuite.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[20/37] Compiling XCTest XCTestSuiteRun.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[21/37] Compiling XCTest XCTestMain.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[22/37] Compiling XCTest XCTestObservation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[23/37] Compiling XCTest XCTestObservationCenter.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[24/37] Compiling XCTest XCTestCaseSuite.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[25/37] Compiling XCTest XCTestInternalObservation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[26/37] Compiling XCTest XCTNSNotificationExpectation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[27/37] Compiling XCTest XCTestCase+Asynchronous.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[28/37] Compiling XCTest XCTestExpectation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[29/37] Compiling XCTest XCAbstractTest.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[30/37] Compiling XCTest XCTNSPredicateExpectation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[31/37] Compiling XCTest XCTWaiter+Validation.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[32/37] Compiling XCTest XCTWaiter.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[33/37] Compiling XCTest WaiterManager.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[34/37] Compiling XCTest WallClockTimeMetric.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
[35/37] Compiling XCTest XCTestCase.TearDownBlocksState.swift
/Users/admin/builder/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift:21:23: error: no such module 'SwiftFoundation'
    @_exported import SwiftFoundation
                      ^
error: fatalError
BUILD FAILURE 5.10 macosSpm