Swift Package IndexBuild Information
Successful build of swift-system, reference main (955447), with Swift 6.1 for Wasm on 11 Mar 2026 04:24:08 UTC.
Swift 6 data race errors: 1
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -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>&1Build Log
========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-system.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/apple/swift-system
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 9554473 Merge pull request #301 from glessard/dev/typo-fix
Cloned https://github.com/apple/swift-system.git
Revision (git rev-parse @):
9554473133203908910845d255e45f8fd941fe9f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-system.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/apple/swift-system.git
https://github.com/apple/swift-system.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
],
"manifest_display_name" : "swift-system",
"name" : "swift-system",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "SystemPackage",
"targets" : [
"SystemPackage"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "SystemTests",
"module_type" : "SwiftTarget",
"name" : "SystemTests",
"path" : "Tests/SystemTests",
"sources" : [
"ErrnoTest.swift",
"FileDescriptorExtras.swift",
"FileModeTests.swift",
"FileOperationsTest.swift",
"FileOperationsTestWindows.swift",
"FilePathTests/FilePathComponentsTest.swift",
"FilePathTests/FilePathDecodable.swift",
"FilePathTests/FilePathExtras.swift",
"FilePathTests/FilePathParsingTest.swift",
"FilePathTests/FilePathSyntaxTest.swift",
"FilePathTests/FilePathTempTest.swift",
"FilePathTests/FilePathTest.swift",
"FileTypesTest.swift",
"IORequestTests.swift",
"IORingTests.swift",
"MachPortTests.swift",
"MockingTest.swift",
"StatTests.swift",
"SystemCharTest.swift",
"SystemStringTests.swift",
"TestingInfrastructure.swift",
"UtilTests.swift"
],
"target_dependencies" : [
"SystemPackage"
],
"type" : "test"
},
{
"c99name" : "SystemPackage",
"module_type" : "SwiftTarget",
"name" : "SystemPackage",
"path" : "Sources/System",
"product_memberships" : [
"SystemPackage"
],
"sources" : [
"Errno.swift",
"ErrnoWindows.swift",
"FileDescriptor.swift",
"FileHelpers.swift",
"FileOperations.swift",
"FilePath/FilePath.swift",
"FilePath/FilePathComponentView.swift",
"FilePath/FilePathComponents.swift",
"FilePath/FilePathParsing.swift",
"FilePath/FilePathString.swift",
"FilePath/FilePathSyntax.swift",
"FilePath/FilePathTemp.swift",
"FilePath/FilePathTempPosix.swift",
"FilePath/FilePathTempWindows.swift",
"FilePath/FilePathWindows.swift",
"FilePermissions.swift",
"FileSystem/FileFlags.swift",
"FileSystem/FileMode.swift",
"FileSystem/FileType.swift",
"FileSystem/Identifiers.swift",
"FileSystem/Stat.swift",
"IORing/IOCompletion.swift",
"IORing/IORequest.swift",
"IORing/IORing.swift",
"IORing/RawIORequest.swift",
"Internals/Backcompat.swift",
"Internals/CInterop.swift",
"Internals/Constants.swift",
"Internals/Exports.swift",
"Internals/Mocking.swift",
"Internals/RawBuffer.swift",
"Internals/Syscalls.swift",
"Internals/WindowsSyscallAdapters.swift",
"MachPort.swift",
"PlatformString.swift",
"SystemString.swift",
"Util+StringArray.swift",
"Util.swift",
"UtilConsumers.swift"
],
"target_dependencies" : [
"CSystem"
],
"type" : "library"
},
{
"c99name" : "CSystem",
"module_type" : "ClangTarget",
"name" : "CSystem",
"path" : "Sources/CSystem",
"product_memberships" : [
"SystemPackage"
],
"sources" : [
"shims.c"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:118:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' [#DeprecatedDeclaration]
116 | #endif
117 |
118 | let package = Package(
| |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' [#DeprecatedDeclaration]
| `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
119 | name: "swift-system",
120 | platforms: platforms,
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -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
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:58b971189c4d3c564696bb40c86e07506670ed096ab7351a005c7c449525017a
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:118:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
116 | #endif
117 |
118 | let package = Package(
| |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
| `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
119 | name: "swift-system",
120 | platforms: platforms,
Building for debugging...
[0/3] Write sources
[1/3] Compiling CSystem shims.c
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/39] Emitting module SystemPackage
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
[5/43] Compiling SystemPackage Errno.swift
[6/43] Compiling SystemPackage ErrnoWindows.swift
[7/43] Compiling SystemPackage FileDescriptor.swift
[8/43] Compiling SystemPackage FileHelpers.swift
[9/43] Compiling SystemPackage FileOperations.swift
[10/43] Compiling SystemPackage SystemString.swift
[11/43] Compiling SystemPackage Util+StringArray.swift
[12/43] Compiling SystemPackage Util.swift
[13/43] Compiling SystemPackage UtilConsumers.swift
[14/43] Compiling SystemPackage FilePath.swift
[15/43] Compiling SystemPackage FilePathComponentView.swift
[16/43] Compiling SystemPackage FilePathComponents.swift
[17/43] Compiling SystemPackage FilePathParsing.swift
[18/43] Compiling SystemPackage FilePathString.swift
[19/43] Compiling SystemPackage RawBuffer.swift
[20/43] Compiling SystemPackage Syscalls.swift
[21/43] Compiling SystemPackage WindowsSyscallAdapters.swift
[22/43] Compiling SystemPackage MachPort.swift
[23/43] Compiling SystemPackage PlatformString.swift
[24/43] Compiling SystemPackage FilePermissions.swift
[25/43] Compiling SystemPackage FileFlags.swift
[26/43] Compiling SystemPackage FileMode.swift
[27/43] Compiling SystemPackage FileType.swift
[28/43] Compiling SystemPackage Identifiers.swift
[29/43] Compiling SystemPackage FilePathSyntax.swift
[30/43] Compiling SystemPackage FilePathTemp.swift
[31/43] Compiling SystemPackage FilePathTempPosix.swift
[32/43] Compiling SystemPackage FilePathTempWindows.swift
[33/43] Compiling SystemPackage FilePathWindows.swift
[34/43] Compiling SystemPackage Stat.swift
[35/43] Compiling SystemPackage IOCompletion.swift
[36/43] Compiling SystemPackage IORequest.swift
[37/43] Compiling SystemPackage IORing.swift
[38/43] Compiling SystemPackage RawIORequest.swift
[39/43] Compiling SystemPackage Backcompat.swift
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
[40/43] Compiling SystemPackage CInterop.swift
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
[41/43] Compiling SystemPackage Constants.swift
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
[42/43] Compiling SystemPackage Exports.swift
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
[43/43] Compiling SystemPackage Mocking.swift
/host/spi-builder-workspace/Sources/System/Internals/Mocking.swift:69:13: warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
67 | }
68 |
69 | private let driverKey: _PlatformTLSKey = { makeTLSKey() }()
| |- warning: let 'driverKey' is not concurrency-safe because non-'Sendable' type '_PlatformTLSKey' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'driverKey' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
70 |
71 | internal var currentMockingDriver: MockingDriver? {
/host/spi-builder-workspace/Sources/System/Internals/Exports.swift:189:22: note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
187 | #elseif os(WASI) && (swift(<6.1) || !_runtime(_multithreaded))
188 | // Mock TLS storage for single-threaded WASI
189 | internal final class _PlatformTLSKey {
| `- note: class '_PlatformTLSKey' does not conform to the 'Sendable' protocol
190 | fileprivate init() {}
191 | }
Build complete! (7.69s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "swift-system",
"name" : "swift-system",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "SystemPackage",
"targets" : [
"SystemPackage"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "SystemTests",
"module_type" : "SwiftTarget",
"name" : "SystemTests",
"path" : "Tests/SystemTests",
"sources" : [
"ErrnoTest.swift",
"FileDescriptorExtras.swift",
"FileModeTests.swift",
"FileOperationsTest.swift",
"FileOperationsTestWindows.swift",
"FilePathTests/FilePathComponentsTest.swift",
"FilePathTests/FilePathDecodable.swift",
"FilePathTests/FilePathExtras.swift",
"FilePathTests/FilePathParsingTest.swift",
"FilePathTests/FilePathSyntaxTest.swift",
"FilePathTests/FilePathTempTest.swift",
"FilePathTests/FilePathTest.swift",
"FileTypesTest.swift",
"IORequestTests.swift",
"IORingTests.swift",
"MachPortTests.swift",
"MockingTest.swift",
"StatTests.swift",
"SystemCharTest.swift",
"SystemStringTests.swift",
"TestingInfrastructure.swift",
"UtilTests.swift"
],
"target_dependencies" : [
"SystemPackage"
],
"type" : "test"
},
{
"c99name" : "SystemPackage",
"module_type" : "SwiftTarget",
"name" : "SystemPackage",
"path" : "Sources/System",
"product_memberships" : [
"SystemPackage"
],
"sources" : [
"Errno.swift",
"ErrnoWindows.swift",
"FileDescriptor.swift",
"FileHelpers.swift",
"FileOperations.swift",
"FilePath/FilePath.swift",
"FilePath/FilePathComponentView.swift",
"FilePath/FilePathComponents.swift",
"FilePath/FilePathParsing.swift",
"FilePath/FilePathString.swift",
"FilePath/FilePathSyntax.swift",
"FilePath/FilePathTemp.swift",
"FilePath/FilePathTempPosix.swift",
"FilePath/FilePathTempWindows.swift",
"FilePath/FilePathWindows.swift",
"FilePermissions.swift",
"FileSystem/FileFlags.swift",
"FileSystem/FileMode.swift",
"FileSystem/FileType.swift",
"FileSystem/Identifiers.swift",
"FileSystem/Stat.swift",
"IORing/IOCompletion.swift",
"IORing/IORequest.swift",
"IORing/IORing.swift",
"IORing/RawIORequest.swift",
"Internals/Backcompat.swift",
"Internals/CInterop.swift",
"Internals/Constants.swift",
"Internals/Exports.swift",
"Internals/Mocking.swift",
"Internals/RawBuffer.swift",
"Internals/Syscalls.swift",
"Internals/WindowsSyscallAdapters.swift",
"MachPort.swift",
"PlatformString.swift",
"SystemString.swift",
"Util+StringArray.swift",
"Util.swift",
"UtilConsumers.swift"
],
"target_dependencies" : [
"CSystem"
],
"type" : "library"
},
{
"c99name" : "CSystem",
"module_type" : "ClangTarget",
"name" : "CSystem",
"path" : "Sources/CSystem",
"product_memberships" : [
"SystemPackage"
],
"sources" : [
"shims.c"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:58b971189c4d3c564696bb40c86e07506670ed096ab7351a005c7c449525017a
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:118:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
116 | #endif
117 |
118 | let package = Package(
| |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
| `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
119 | name: "swift-system",
120 | platforms: platforms,
Done.