Swift Package IndexBuild Information
Successful build of package-concurrency-helpers, reference main (eb5a56), with Swift 6.1 for macOS (SPM) on 1 May 2025 05:14:33 UTC.
Swift 6 data race errors: 1
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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 InferSendableFromCapturesBuild Log
========================================
RunAll
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Builder version: 4.61.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ordo-one/package-concurrency-helpers.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ordo-one/package-concurrency-helpers
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at eb5a564 fix(patch): avoid closure escaping in runSync() (#70)
Cloned https://github.com/ordo-one/package-concurrency-helpers.git
Revision (git rev-parse @):
eb5a5642ad0cbce123e7773b422bfcfce48c5728
SUCCESS checkout https://github.com/ordo-one/package-concurrency-helpers.git at main
Fetching https://github.com/mattgallagher/CwlPreconditionTesting
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-atomics from cache
[1/1257] Fetching cwlpreconditiontesting
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Computing version for https://github.com/apple/swift-atomics
Computed https://github.com/apple/swift-atomics at 1.2.0 (1.67s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting
Computed https://github.com/mattgallagher/CwlPreconditionTesting at 2.2.2 (0.55s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
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Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (1.19s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.3 (0.54s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.78s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.40s)
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting resolved at 2.2.2
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
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/apple/swift-atomics
Working copy of https://github.com/apple/swift-atomics resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.3
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
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Fetching https://github.com/ordo-one/package-concurrency-helpers.git
[1/1298] Fetching package-concurrency-helpers
Fetched https://github.com/ordo-one/package-concurrency-helpers.git from cache (0.83s)
Fetching https://github.com/apple/swift-atomics from cache
Fetched https://github.com/apple/swift-atomics from cache (0.49s)
Computing version for https://github.com/apple/swift-atomics
Computed https://github.com/apple/swift-atomics at 1.2.0 (0.56s)
Creating working copy for https://github.com/apple/swift-atomics
Working copy of https://github.com/apple/swift-atomics resolved at 1.2.0
Creating working copy for https://github.com/ordo-one/package-concurrency-helpers.git
Working copy of https://github.com/ordo-one/package-concurrency-helpers.git resolved at main (eb5a564)
warning: '.resolve-product-dependencies': dependency 'package-concurrency-helpers' is not used by any target
Found 1 product dependencies
- swift-atomics
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/ordo-one/package-concurrency-helpers.git
https://github.com/ordo-one/package-concurrency-helpers.git
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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 -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
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/8] Write sources
[5/8] Compiling _PauseShims _PauseShims.c
[6/8] Write swift-version-2F0A5646E1D333AE.txt
[7/8] Compiling _AtomicsShims.c
[9/33] Compiling Atomics UnsafeAtomic.swift
[10/33] Compiling Atomics UnsafeAtomicLazyReference.swift
[11/33] Compiling Atomics ManagedAtomic.swift
[12/33] Compiling Atomics ManagedAtomicLazyReference.swift
[13/35] Compiling Atomics IntegerOperations.swift
[14/35] Compiling Atomics Unmanaged extensions.swift
[15/35] Compiling Atomics AtomicStorage.swift
[16/35] Compiling Atomics AtomicValue.swift
[17/35] Compiling Atomics AtomicBool.swift
[18/35] Compiling Atomics IntegerConformances.swift
[19/35] Compiling Atomics AtomicOptionalWrappable.swift
[20/35] Compiling Atomics AtomicReference.swift
[21/35] Compiling Atomics Primitives.shims.swift
[22/35] Compiling Atomics AtomicInteger.swift
[23/35] Compiling Atomics OptionalRawRepresentable.swift
[24/35] Compiling Atomics RawRepresentable.swift
[25/35] Compiling Atomics AtomicMemoryOrderings.swift
[26/35] Compiling Atomics DoubleWord.swift
[27/35] Compiling Atomics PointerConformances.swift
[28/35] Compiling Atomics Primitives.native.swift
[29/35] Emitting module Atomics
[30/45] Compiling PackageConcurrencyHelpers NIOSendable.swift
[31/45] Compiling PackageConcurrencyHelpers Lockable.swift
[32/45] Emitting module PackageConcurrencyHelpers
/Users/admin/builder/spi-builder-workspace/Sources/ConcurrencyHelpers/Lock.swift:22:25: warning: stored property 'mutex' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<os_unfair_lock>' (aka 'UnsafeMutablePointer<os_unfair_lock_s>'); this is an error in the Swift 6 language mode
20 | public final class Lock {
21 | #if os(macOS)
22 | fileprivate let mutex = UnsafeMutablePointer<os_unfair_lock>.allocate(capacity: 1)
| `- warning: stored property 'mutex' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<os_unfair_lock>' (aka 'UnsafeMutablePointer<os_unfair_lock_s>'); this is an error in the Swift 6 language mode
23 | #else
24 | fileprivate let mutex: UnsafeMutablePointer<pthread_mutex_t> =
Swift.UnsafeMutablePointer:1:23: note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
1 | @frozen public struct UnsafeMutablePointer<Pointee> : Copyable where Pointee : ~Copyable {
| `- note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
2 | public let _rawValue: Builtin.RawPointer
3 | public init(_ _rawValue: Builtin.RawPointer)
[33/45] Compiling PackageConcurrencyHelpers Spinlock.swift
[34/45] Compiling PackageConcurrencyHelpers UnsafeSendableWrapper.swift
[35/45] Compiling PackageConcurrencyHelpers YieldWithBackPressure.swift
/Users/admin/builder/spi-builder-workspace/Sources/ConcurrencyHelpers/YieldWithBackPressure.swift:22:35: warning: sending 'message' risks causing data races; this is an error in the Swift 6 language mode
20 | to continuation: AsyncStream<Message>.Continuation) async -> Bool {
21 | while true {
22 | let result = continuation.yield(message)
| |- warning: sending 'message' risks causing data races; this is an error in the Swift 6 language mode
| `- note: task-isolated 'message' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
23 | switch result {
24 | case .terminated:
[36/45] Compiling PackageConcurrencyHelpers Lock.swift
/Users/admin/builder/spi-builder-workspace/Sources/ConcurrencyHelpers/Lock.swift:22:25: warning: stored property 'mutex' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<os_unfair_lock>' (aka 'UnsafeMutablePointer<os_unfair_lock_s>'); this is an error in the Swift 6 language mode
20 | public final class Lock {
21 | #if os(macOS)
22 | fileprivate let mutex = UnsafeMutablePointer<os_unfair_lock>.allocate(capacity: 1)
| `- warning: stored property 'mutex' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<os_unfair_lock>' (aka 'UnsafeMutablePointer<os_unfair_lock_s>'); this is an error in the Swift 6 language mode
23 | #else
24 | fileprivate let mutex: UnsafeMutablePointer<pthread_mutex_t> =
Swift.UnsafeMutablePointer:1:23: note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
1 | @frozen public struct UnsafeMutablePointer<Pointee> : Copyable where Pointee : ~Copyable {
| `- note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
2 | public let _rawValue: Builtin.RawPointer
3 | public init(_ _rawValue: Builtin.RawPointer)
[37/45] Compiling PackageConcurrencyHelpers Protected.swift
[38/45] Compiling PackageConcurrencyHelpers RunSync.swift
[39/45] Compiling PackageConcurrencyHelpers ForBlockingCall.swift
[40/45] Compiling Helpers TimeIntervalCounter.swift
[41/45] Compiling Helpers MakeStream.swift
[42/45] Compiling Helpers NearestPowerOf2.swift
[43/45] Compiling Helpers IsBeingDebugged.swift
[44/45] Emitting module Helpers
[45/45] Compiling Helpers Box.swift
Build complete! (14.28s)
Build complete.
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Done.