Swift Package IndexBuild Information
Successful build of SwiftShell, reference master (5b2207), with Swift 6.1 for macOS (SPM) on 27 Mar 2026 07:01:47 UTC.
Swift 6 data race errors: 2
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
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/kareman/SwiftShell.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/kareman/SwiftShell
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 5b2207c Release 5.1.1 (#111)
Cloned https://github.com/kareman/SwiftShell.git
Revision (git rev-parse @):
5b2207cd7177567e4efd9366d554c384037ef42f
SUCCESS checkout https://github.com/kareman/SwiftShell.git at master
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/kareman/SwiftShell.git
https://github.com/kareman/SwiftShell.git
{
"dependencies" : [
],
"manifest_display_name" : "SwiftShell",
"name" : "SwiftShell",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.13"
}
],
"products" : [
{
"name" : "SwiftShell",
"targets" : [
"SwiftShell"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"4.2",
"5"
],
"targets" : [
{
"c99name" : "SwiftShellTests",
"module_type" : "SwiftTarget",
"name" : "SwiftShellTests",
"path" : "Tests/SwiftShellTests",
"sources" : [
"Command_Tests.swift",
"Context_Tests.swift",
"Files_Tests.swift",
"String_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
},
{
"c99name" : "SwiftShell",
"module_type" : "SwiftTarget",
"name" : "SwiftShell",
"path" : "Sources/SwiftShell",
"product_memberships" : [
"SwiftShell"
],
"sources" : [
"Bash.swift",
"Command.swift",
"Context.swift",
"Files.swift",
"General/Array.swift",
"Process.swift",
"Stream/Lazy-split.swift",
"Stream/Stream.swift",
"String.swift"
],
"type" : "library"
},
{
"c99name" : "StreamTests",
"module_type" : "SwiftTarget",
"name" : "StreamTests",
"path" : "Tests/StreamTests",
"sources" : [
"Collection_Tests.swift",
"FileHandle_Tests.swift",
"Stream_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
},
{
"c99name" : "GeneralTests",
"module_type" : "SwiftTarget",
"name" : "GeneralTests",
"path" : "Tests/GeneralTests",
"sources" : [
"Array_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
}
],
"tools_version" : "5.0"
}
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 -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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/12] Compiling SwiftShell Lazy-split.swift
[4/12] Compiling SwiftShell Stream.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Stream/Stream.swift:113:4: warning: capture of 'self' with non-sendable type 'Self?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
111 | public func onOutput(_ handler: @escaping (ReadableStream) -> Void) {
112 | filehandle.readabilityHandler = { [weak self] _ in
113 | self.map(handler)
| `- warning: capture of 'self' with non-sendable type 'Self?' in a '@Sendable' closure; this is an error in the Swift 6 language mode
114 | }
115 | }
SwiftShell.ReadableStream.Self:2:1: note: consider making generic parameter 'Self' conform to the 'Sendable' protocol
1 | protocol ReadableStream {
2 | Self : SwiftShell.ReadableStream}
| `- note: consider making generic parameter 'Self' conform to the 'Sendable' protocol
3 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Stream/Stream.swift:113:13: warning: capture of 'handler' with non-sendable type '(any ReadableStream) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
111 | public func onOutput(_ handler: @escaping (ReadableStream) -> Void) {
112 | filehandle.readabilityHandler = { [weak self] _ in
113 | self.map(handler)
| |- warning: capture of 'handler' with non-sendable type '(any ReadableStream) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
114 | }
115 | }
[5/12] Compiling SwiftShell Files.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Files.swift:11:12: warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
9 |
10 | /** The default FileManager */
11 | public let Files = FileManager.default
| |- warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'Files' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12 |
13 | /** Appends file or directory url to directory url */
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSFileManager.h:96:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
94 | extern NSNotificationName const NSUbiquityIdentityDidChangeNotification API_AVAILABLE(macos(10.8), ios(6.0), watchos(2.0), tvos(9.0));
95 |
96 | @interface NSFileManager : NSObject
| `- note: class 'FileManager' does not conform to the 'Sendable' protocol
97 |
98 | /* Returns the default singleton instance.
[6/12] Compiling SwiftShell Array.swift
[7/12] Compiling SwiftShell Process.swift
[8/12] Compiling SwiftShell Context.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
88 | }
89 |
90 | public final class MainContext: Context, CommandRunning {
| `- note: class 'MainContext' does not conform to the 'Sendable' protocol
91 | /// The default character encoding used throughout SwiftShell.
92 | /// Only affects stdin, stdout and stderror if they have not been used yet.
:
140 | }
141 |
142 | public let main = MainContext()
| |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'main' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
143 |
[9/12] Compiling SwiftShell String.swift
[10/12] Compiling SwiftShell Bash.swift
[11/12] Emitting module SwiftShell
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
88 | }
89 |
90 | public final class MainContext: Context, CommandRunning {
| `- note: class 'MainContext' does not conform to the 'Sendable' protocol
91 | /// The default character encoding used throughout SwiftShell.
92 | /// Only affects stdin, stdout and stderror if they have not been used yet.
:
140 | }
141 |
142 | public let main = MainContext()
| |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'main' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
143 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Files.swift:11:12: warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
9 |
10 | /** The default FileManager */
11 | public let Files = FileManager.default
| |- warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make let 'Files' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12 |
13 | /** Appends file or directory url to directory url */
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSFileManager.h:96:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
94 | extern NSNotificationName const NSUbiquityIdentityDidChangeNotification API_AVAILABLE(macos(10.8), ios(6.0), watchos(2.0), tvos(9.0));
95 |
96 | @interface NSFileManager : NSObject
| `- note: class 'FileManager' does not conform to the 'Sendable' protocol
97 |
98 | /* Returns the default singleton instance.
[12/12] Compiling SwiftShell Command.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:151:17: warning: capture of 'command' with non-sendable type 'AsyncCommand' in a '@Sendable' closure
149 | if command.stdout.filehandle.fileDescriptor != command.stderror.filehandle.fileDescriptor {
150 | DispatchQueue.global().async(group: group) {
151 | stderror = command.stderror.readData()
| `- warning: capture of 'command' with non-sendable type 'AsyncCommand' in a '@Sendable' closure
152 | }
153 | }
:
334 |
335 | /** Output from the 'runAsync' commands. */
336 | public final class AsyncCommand: PrintedAsyncCommand {
| `- note: class 'AsyncCommand' does not conform to the 'Sendable' protocol
337 | public let stdout: ReadableStream
338 | public let stderror: ReadableStream
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:151:6: warning: mutation of captured var 'stderror' in concurrently-executing code
149 | if command.stdout.filehandle.fileDescriptor != command.stderror.filehandle.fileDescriptor {
150 | DispatchQueue.global().async(group: group) {
151 | stderror = command.stderror.readData()
| `- warning: mutation of captured var 'stderror' in concurrently-executing code
152 | }
153 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:329:4: warning: capture of 'handler' with non-sendable type '(PrintedAsyncCommand) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
327 | @discardableResult public func onCompletion(_ handler: @escaping (PrintedAsyncCommand) -> Void) -> Self {
328 | process.terminationHandler = { _ in
329 | handler(self)
| |- warning: capture of 'handler' with non-sendable type '(PrintedAsyncCommand) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
330 | }
331 | return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:329:12: warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure; this is an error in the Swift 6 language mode
239 |
240 | /// Output from the `runAsyncAndPrint` commands.
241 | public class PrintedAsyncCommand {
| `- note: class 'PrintedAsyncCommand' does not conform to the 'Sendable' protocol
242 | fileprivate let process: Process
243 |
:
327 | @discardableResult public func onCompletion(_ handler: @escaping (PrintedAsyncCommand) -> Void) -> Self {
328 | process.terminationHandler = { _ in
329 | handler(self)
| `- warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure; this is an error in the Swift 6 language mode
330 | }
331 | return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:362:4: warning: capture of 'handler' with non-sendable type '(AsyncCommand) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
360 | @discardableResult public override func onCompletion(_ handler: @escaping (AsyncCommand) -> Void) -> Self {
361 | process.terminationHandler = { _ in
362 | handler(self)
| |- warning: capture of 'handler' with non-sendable type '(AsyncCommand) -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
363 | }
364 | return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:362:12: warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure; this is an error in the Swift 6 language mode
334 |
335 | /** Output from the 'runAsync' commands. */
336 | public final class AsyncCommand: PrintedAsyncCommand {
| `- note: class 'AsyncCommand' does not conform to the 'Sendable' protocol
337 | public let stdout: ReadableStream
338 | public let stderror: ReadableStream
:
360 | @discardableResult public override func onCompletion(_ handler: @escaping (AsyncCommand) -> Void) -> Self {
361 | process.terminationHandler = { _ in
362 | handler(self)
| `- warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure; this is an error in the Swift 6 language mode
363 | }
364 | return self
Build complete! (4.73s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "SwiftShell",
"name" : "SwiftShell",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.13"
}
],
"products" : [
{
"name" : "SwiftShell",
"targets" : [
"SwiftShell"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"4.2",
"5"
],
"targets" : [
{
"c99name" : "SwiftShellTests",
"module_type" : "SwiftTarget",
"name" : "SwiftShellTests",
"path" : "Tests/SwiftShellTests",
"sources" : [
"Command_Tests.swift",
"Context_Tests.swift",
"Files_Tests.swift",
"String_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
},
{
"c99name" : "SwiftShell",
"module_type" : "SwiftTarget",
"name" : "SwiftShell",
"path" : "Sources/SwiftShell",
"product_memberships" : [
"SwiftShell"
],
"sources" : [
"Bash.swift",
"Command.swift",
"Context.swift",
"Files.swift",
"General/Array.swift",
"Process.swift",
"Stream/Lazy-split.swift",
"Stream/Stream.swift",
"String.swift"
],
"type" : "library"
},
{
"c99name" : "StreamTests",
"module_type" : "SwiftTarget",
"name" : "StreamTests",
"path" : "Tests/StreamTests",
"sources" : [
"Collection_Tests.swift",
"FileHandle_Tests.swift",
"Stream_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
},
{
"c99name" : "GeneralTests",
"module_type" : "SwiftTarget",
"name" : "GeneralTests",
"path" : "Tests/GeneralTests",
"sources" : [
"Array_Tests.swift"
],
"target_dependencies" : [
"SwiftShell"
],
"type" : "test"
}
],
"tools_version" : "5.0"
}
Done.