Swift Package IndexBuild Information
Successful build of Subprocess, reference 0.2.1 (44922d), with Swift 6.3 for macOS (SPM) on 17 Apr 2026 07:57:01 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-subprocess.git
Reference: 0.2.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swift-subprocess
* tag 0.2.1 -> FETCH_HEAD
HEAD is now at 44922df Fix `Environment.updating` for `custom` and `rawBytes` (#199)
Cloned https://github.com/swiftlang/swift-subprocess.git
Revision (git rev-parse @):
44922dfe46380cd354ca4b0208e717a3e92b13dd
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swiftlang/swift-subprocess.git at 0.2.1
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-system
[1/2277] Fetching swift-docc-plugin
[24/7878] Fetching swift-docc-plugin, swift-system
Fetched https://github.com/apple/swift-docc-plugin from cache (1.23s)
Fetched https://github.com/apple/swift-system from cache (1.23s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.6 (4.22s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3672] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.21s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.91s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (0.58s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.6
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
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
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "swift-subprocess",
"name": "Subprocess",
"url": "https://github.com/swiftlang/swift-subprocess.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-subprocess",
"traits": [
"SubprocessSpan",
"SubprocessFoundation"
],
"dependencies": [
{
"identity": "swift-system",
"name": "swift-system",
"url": "https://github.com/apple/swift-system",
"version": "1.6.4",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-system",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
Fetching https://github.com/swiftlang/swift-subprocess.git
[1/2907] Fetching swift-subprocess
Fetched https://github.com/swiftlang/swift-subprocess.git from cache (1.05s)
Fetching https://github.com/apple/swift-system from cache
Fetched https://github.com/apple/swift-system from cache (0.48s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (0.54s)
Creating working copy for https://github.com/swiftlang/swift-subprocess.git
Working copy of https://github.com/swiftlang/swift-subprocess.git resolved at 0.2.1 (44922df)
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
Found 1 product dependencies
- swift-system
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/swiftlang/swift-subprocess.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/9] Write sources
[2/9] Copying Resources
[6/9] Compiling CSystem shims.c
[7/9] Write swift-version--6988338F2F200930.txt
[8/37] Compiling _SubprocessCShims process_shims.c
[10/37] Compiling SystemPackage FilePathString.swift
[11/37] Compiling SystemPackage FilePathSyntax.swift
[12/37] Compiling SystemPackage FilePathTemp.swift
[13/40] Compiling SystemPackage Errno.swift
[14/40] Compiling SystemPackage ErrnoWindows.swift
[15/40] Compiling SystemPackage FileDescriptor.swift
[16/40] Compiling SystemPackage RawBuffer.swift
[17/40] Compiling SystemPackage Syscalls.swift
[18/40] Compiling SystemPackage WindowsSyscallAdapters.swift
[19/40] Compiling SystemPackage FileHelpers.swift
[20/40] Compiling SystemPackage FileOperations.swift
[21/40] Compiling SystemPackage FilePath.swift
[22/40] Compiling SystemPackage Constants.swift
[23/40] Compiling SystemPackage Exports.swift
[24/40] Compiling SystemPackage Mocking.swift
[25/40] Compiling SystemPackage FilePathTempPosix.swift
[26/40] Compiling SystemPackage FilePathTempWindows.swift
[27/40] Compiling SystemPackage FilePathWindows.swift
[28/40] Compiling SystemPackage FilePermissions.swift
[29/40] Compiling SystemPackage Backcompat.swift
[30/40] Compiling SystemPackage CInterop.swift
[31/40] Compiling SystemPackage MachPort.swift
[32/40] Compiling SystemPackage PlatformString.swift
[33/40] Compiling SystemPackage SystemString.swift
[34/40] Compiling SystemPackage FilePathComponentView.swift
[35/40] Compiling SystemPackage FilePathComponents.swift
[36/40] Compiling SystemPackage FilePathParsing.swift
[37/40] Emitting module SystemPackage
[38/40] Compiling SystemPackage Util+StringArray.swift
[39/40] Compiling SystemPackage Util.swift
[40/40] Compiling SystemPackage UtilConsumers.swift
[41/65] Emitting module Subprocess
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Buffer.swift:84:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
82 | // Access the storage backing this Buffer
83 | public var bytes: RawSpan {
84 | @lifetime(borrow self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
85 | borrowing get {
86 | let ptr = self.data.withUnsafeBytes { $0 }
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:18:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
16 | @_unsafeNonescapableResult
17 | @inlinable @inline(__always)
18 | @lifetime(borrow source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
19 | public func _overrideLifetime<
20 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:31:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
29 | @_unsafeNonescapableResult
30 | @inlinable @inline(__always)
31 | @lifetime(copy source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
32 | public func _overrideLifetime<
33 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:45:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
43 |
44 | internal var _bytes: RawSpan {
45 | @lifetime(copy self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
46 | @_alwaysEmitIntoClient
47 | get {
[42/67] Compiling Subprocess Subprocess+Windows.swift
[43/67] Compiling Subprocess Result.swift
[44/67] Compiling Subprocess Subprocess+Linux.swift
[45/67] Compiling Subprocess Subprocess+Unix.swift
[46/67] Compiling Subprocess Teardown.swift
[47/67] Compiling Subprocess Thread.swift
[48/67] Compiling TestResources resource_bundle_accessor.swift
[49/67] Emitting module TestResources
[50/67] Compiling TestResources TestResources.swift
[51/67] Compiling Subprocess AsyncIO+Dispatch.swift
[52/67] Compiling Subprocess AsyncIO+Linux.swift
[53/67] Compiling Subprocess AsyncIO+Windows.swift
[54/67] Compiling Subprocess Output+Foundation.swift
[55/67] Compiling Subprocess Span+SubprocessFoundation.swift
[56/67] Compiling Subprocess Configuration.swift
[57/67] Compiling Subprocess Error.swift
[58/67] Compiling Subprocess Execution.swift
[59/67] Compiling Subprocess API.swift
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Buffer.swift:84:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
82 | // Access the storage backing this Buffer
83 | public var bytes: RawSpan {
84 | @lifetime(borrow self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
85 | borrowing get {
86 | let ptr = self.data.withUnsafeBytes { $0 }
[60/67] Compiling Subprocess AsyncBufferSequence.swift
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Buffer.swift:84:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
82 | // Access the storage backing this Buffer
83 | public var bytes: RawSpan {
84 | @lifetime(borrow self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
85 | borrowing get {
86 | let ptr = self.data.withUnsafeBytes { $0 }
[61/67] Compiling Subprocess Buffer.swift
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Buffer.swift:84:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
82 | // Access the storage backing this Buffer
83 | public var bytes: RawSpan {
84 | @lifetime(borrow self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
85 | borrowing get {
86 | let ptr = self.data.withUnsafeBytes { $0 }
[62/67] Compiling Subprocess Input.swift
[63/67] Compiling Subprocess Output.swift
[64/67] Compiling Subprocess Span+Subprocess.swift
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:18:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
16 | @_unsafeNonescapableResult
17 | @inlinable @inline(__always)
18 | @lifetime(borrow source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
19 | public func _overrideLifetime<
20 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:31:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
29 | @_unsafeNonescapableResult
30 | @inlinable @inline(__always)
31 | @lifetime(copy source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
32 | public func _overrideLifetime<
33 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:45:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
43 |
44 | internal var _bytes: RawSpan {
45 | @lifetime(copy self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
46 | @_alwaysEmitIntoClient
47 | get {
[65/67] Compiling Subprocess Input+Foundation.swift
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:18:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
16 | @_unsafeNonescapableResult
17 | @inlinable @inline(__always)
18 | @lifetime(borrow source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
19 | public func _overrideLifetime<
20 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:31:2: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
29 | @_unsafeNonescapableResult
30 | @inlinable @inline(__always)
31 | @lifetime(copy source)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
32 | public func _overrideLifetime<
33 | T: ~Copyable & ~Escapable,
/Users/admin/builder/spi-builder-workspace/Sources/Subprocess/Span+Subprocess.swift:45:10: warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
43 |
44 | internal var _bytes: RawSpan {
45 | @lifetime(copy self)
| `- warning: Unsupported use of @lifetime, use @_lifetime to specify lifetime dependencies
46 | @_alwaysEmitIntoClient
47 | get {
[66/67] Compiling Subprocess Subprocess+BSD.swift
[67/67] Compiling Subprocess Subprocess+Darwin.swift
Build complete! (12.80s)
Build complete.
{
"dependencies" : [
{
"identity" : "swift-system",
"requirement" : {
"range" : [
{
"lower_bound" : "1.5.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-system"
},
{
"identity" : "swift-docc-plugin",
"requirement" : {
"range" : [
{
"lower_bound" : "1.4.5",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-docc-plugin"
}
],
"manifest_display_name" : "Subprocess",
"name" : "Subprocess",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "13.0"
},
{
"name" : "ios",
"version" : "99.0"
}
],
"products" : [
{
"name" : "Subprocess",
"targets" : [
"Subprocess"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "_SubprocessCShims",
"module_type" : "ClangTarget",
"name" : "_SubprocessCShims",
"path" : "Sources/_SubprocessCShims",
"product_memberships" : [
"Subprocess"
],
"sources" : [
"process_shims.c"
],
"type" : "library"
},
{
"c99name" : "TestResources",
"module_type" : "SwiftTarget",
"name" : "TestResources",
"path" : "Tests/TestResources",
"product_dependencies" : [
"SystemPackage"
],
"resources" : [
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/TestResources/Resources",
"rule" : {
"copy" : {
}
}
}
],
"sources" : [
"TestResources.swift"
],
"type" : "library"
},
{
"c99name" : "SubprocessTests",
"module_type" : "SwiftTarget",
"name" : "SubprocessTests",
"path" : "Tests/SubprocessTests",
"product_dependencies" : [
"SystemPackage"
],
"sources" : [
"AsyncIOTests.swift",
"DarwinTests.swift",
"IntegrationTests.swift",
"LinterTests.swift",
"LinuxTests.swift",
"PlatformConformance.swift",
"ProcessMonitoringTests.swift",
"TestSupport.swift",
"UnixTests.swift",
"WindowsTests.swift"
],
"target_dependencies" : [
"_SubprocessCShims",
"Subprocess",
"TestResources"
],
"type" : "test"
},
{
"c99name" : "Subprocess",
"module_type" : "SwiftTarget",
"name" : "Subprocess",
"path" : "Sources/Subprocess",
"product_dependencies" : [
"SystemPackage"
],
"product_memberships" : [
"Subprocess"
],
"sources" : [
"API.swift",
"AsyncBufferSequence.swift",
"Buffer.swift",
"Configuration.swift",
"Error.swift",
"Execution.swift",
"IO/AsyncIO+Dispatch.swift",
"IO/AsyncIO+Linux.swift",
"IO/AsyncIO+Windows.swift",
"IO/Input.swift",
"IO/Output.swift",
"Platforms/Subprocess+BSD.swift",
"Platforms/Subprocess+Darwin.swift",
"Platforms/Subprocess+Linux.swift",
"Platforms/Subprocess+Unix.swift",
"Platforms/Subprocess+Windows.swift",
"Result.swift",
"Span+Subprocess.swift",
"SubprocessFoundation/Input+Foundation.swift",
"SubprocessFoundation/Output+Foundation.swift",
"SubprocessFoundation/Span+SubprocessFoundation.swift",
"Teardown.swift",
"Thread.swift"
],
"target_dependencies" : [
"_SubprocessCShims"
],
"type" : "library"
}
],
"tools_version" : "6.1"
}
Done.