Swift Package IndexBuild Information
Successful build of MQTTKit, reference master (ec8946), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 00:02:12 UTC.
Swift 6 data race errors: 3
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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/arnecs/mqttkit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/arnecs/mqttkit
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at ec89464 travis script xcodebuild
Cloned https://github.com/arnecs/mqttkit.git
Revision (git rev-parse @):
ec894640f1ea27f758b3f4d22722d83159773cd0
SUCCESS checkout https://github.com/arnecs/mqttkit.git at master
========================================
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",
"dependencies": [
{
"identity": "mqttkit",
"name": "MQTTKit",
"url": "https://github.com/arnecs/mqttkit.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/mqttkit",
"dependencies": [
]
}
]
}
Fetching https://github.com/arnecs/mqttkit.git
[1/260] Fetching mqttkit
Fetched https://github.com/arnecs/mqttkit.git from cache (0.76s)
Creating working copy for https://github.com/arnecs/mqttkit.git
Working copy of https://github.com/arnecs/mqttkit.git resolved at master (ec89464)
warning: '.resolve-product-dependencies': dependency 'mqttkit' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/arnecs/mqttkit.git
https://github.com/arnecs/mqttkit.git
{
"dependencies" : [
],
"manifest_display_name" : "MQTTKit",
"name" : "MQTTKit",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "MQTTKit",
"targets" : [
"MQTTKit"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "MQTTKitTests",
"module_type" : "SwiftTarget",
"name" : "MQTTKitTests",
"path" : "Tests",
"sources" : [
"MQTTKitTests.swift"
],
"target_dependencies" : [
"MQTTKit"
],
"type" : "test"
},
{
"c99name" : "MQTTKit",
"module_type" : "SwiftTarget",
"name" : "MQTTKit",
"path" : "Sources",
"product_memberships" : [
"MQTTKit"
],
"sources" : [
"Constants.swift",
"Extensions.swift",
"MQTTMessage.swift",
"MQTTOptions.swift",
"MQTTPacket.swift",
"MQTTSession.swift",
"MQTTSessionDelegate.swift"
],
"type" : "library"
}
],
"tools_version" : "4.0"
}
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
[3/10] Compiling MQTTKit MQTTSession.swift
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:138:23: warning: capture of 'self' with non-sendable type 'MQTTSession?' in a '@Sendable' closure
9 | import Foundation
10 |
11 | final public class MQTTSession: NSObject, StreamDelegate {
| `- note: class 'MQTTSession' does not conform to the 'Sendable' protocol
12 | private var options: MQTTOptions
13 | private var inputStream: InputStream?
:
136 | DispatchQueue.main.async {
137 | self.keepAliveTimer = Timer.scheduledTimer(withTimeInterval: TimeInterval(self.options.keepAliveInterval / 2), repeats: true, block: { [weak self] timer in
138 | guard self?.outputStream?.streamStatus == .open,
| `- warning: capture of 'self' with non-sendable type 'MQTTSession?' in a '@Sendable' closure
139 | -self!.lastServerResponse.timeIntervalSinceNow < Double(self!.options.keepAliveInterval) * 1.5 else {
140 | timer.invalidate()
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:160:62: warning: capture of 'self' with non-sendable type 'MQTTSession' in a '@Sendable' closure
9 | import Foundation
10 |
11 | final public class MQTTSession: NSObject, StreamDelegate {
| `- note: class 'MQTTSession' does not conform to the 'Sendable' protocol
12 | private var options: MQTTOptions
13 | private var inputStream: InputStream?
:
158 | DispatchQueue.main.async {
159 | self.autoReconnectTimer = Timer.scheduledTimer(withTimeInterval: TimeInterval(self.options.keepAliveInterval / 2), repeats: true, block: { [lsr = self.lastServerResponse, timeout = self.options.autoReconnectTimeout] timer in
160 | guard -lsr.timeIntervalSinceNow < timeout && self.state == .disconnected else {
| `- warning: capture of 'self' with non-sendable type 'MQTTSession' in a '@Sendable' closure
161 | timer.invalidate()
162 | return
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:160:62: warning: implicit capture of 'self' requires that 'MQTTSession' conforms to 'Sendable'; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | final public class MQTTSession: NSObject, StreamDelegate {
| `- note: class 'MQTTSession' does not conform to the 'Sendable' protocol
12 | private var options: MQTTOptions
13 | private var inputStream: InputStream?
:
158 | DispatchQueue.main.async {
159 | self.autoReconnectTimer = Timer.scheduledTimer(withTimeInterval: TimeInterval(self.options.keepAliveInterval / 2), repeats: true, block: { [lsr = self.lastServerResponse, timeout = self.options.autoReconnectTimeout] timer in
160 | guard -lsr.timeIntervalSinceNow < timeout && self.state == .disconnected else {
| `- warning: implicit capture of 'self' requires that 'MQTTSession' conforms to 'Sendable'; this is an error in the Swift 6 language mode
161 | timer.invalidate()
162 | return
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:197:13: warning: capture of 'input' with non-sendable type 'InputStream' in a '@Sendable' closure
195 |
196 | DispatchQueue.global(qos: .userInitiated).async {
197 | input.open()
| `- warning: capture of 'input' with non-sendable type 'InputStream' in a '@Sendable' closure
198 | output.open()
199 |
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSStream.h:56:12: note: class 'InputStream' does not conform to the 'Sendable' protocol
54 | // NSInputStream is an abstract class representing the base functionality of a read stream.
55 | // Subclassers are required to implement these methods.
56 | @interface NSInputStream : NSStream
| `- note: class 'InputStream' does not conform to the 'Sendable' protocol
57 | - (NSInteger)read:(uint8_t *)buffer maxLength:(NSUInteger)len;
58 | // reads up to length bytes into the supplied buffer, which must be at least of size len. Returns the actual number of bytes read.
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:198:13: warning: capture of 'output' with non-sendable type 'OutputStream' in a '@Sendable' closure
196 | DispatchQueue.global(qos: .userInitiated).async {
197 | input.open()
198 | output.open()
| `- warning: capture of 'output' with non-sendable type 'OutputStream' in a '@Sendable' closure
199 |
200 | while input.streamStatus == .opening || output.streamStatus == .opening {
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSStream.h:73:12: note: class 'OutputStream' does not conform to the 'Sendable' protocol
71 | // NSOutputStream is an abstract class representing the base functionality of a write stream.
72 | // Subclassers are required to implement these methods.
73 | @interface NSOutputStream : NSStream
| `- note: class 'OutputStream' does not conform to the 'Sendable' protocol
74 | - (NSInteger)write:(const uint8_t *)buffer maxLength:(NSUInteger)len;
75 | // writes the bytes from the specified buffer to the stream up to len bytes. Returns the number of bytes actually written.
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:205:17: warning: capture of 'completion' with non-sendable type '((input: InputStream, output: OutputStream)?) -> Void' in a '@Sendable' closure
203 |
204 | if input.streamStatus != .open || output.streamStatus != .open {
205 | completion(nil)
| |- warning: capture of 'completion' with non-sendable type '((input: InputStream, output: OutputStream)?) -> Void' in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
206 | return
207 | }
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:200:53: warning: implicit capture of 'output' requires that 'OutputStream' conforms to 'Sendable'; this is an error in the Swift 6 language mode
198 | output.open()
199 |
200 | while input.streamStatus == .opening || output.streamStatus == .opening {
| `- warning: implicit capture of 'output' requires that 'OutputStream' conforms to 'Sendable'; this is an error in the Swift 6 language mode
201 | usleep(1000)
202 | }
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSStream.h:73:12: note: class 'OutputStream' does not conform to the 'Sendable' protocol
71 | // NSOutputStream is an abstract class representing the base functionality of a write stream.
72 | // Subclassers are required to implement these methods.
73 | @interface NSOutputStream : NSStream
| `- note: class 'OutputStream' does not conform to the 'Sendable' protocol
74 | - (NSInteger)write:(const uint8_t *)buffer maxLength:(NSUInteger)len;
75 | // writes the bytes from the specified buffer to the stream up to len bytes. Returns the number of bytes actually written.
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:204:47: warning: implicit capture of 'output' requires that 'OutputStream' conforms to 'Sendable'; this is an error in the Swift 6 language mode
202 | }
203 |
204 | if input.streamStatus != .open || output.streamStatus != .open {
| `- warning: implicit capture of 'output' requires that 'OutputStream' conforms to 'Sendable'; this is an error in the Swift 6 language mode
205 | completion(nil)
206 | return
/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSStream.h:73:12: note: class 'OutputStream' does not conform to the 'Sendable' protocol
71 | // NSOutputStream is an abstract class representing the base functionality of a write stream.
72 | // Subclassers are required to implement these methods.
73 | @interface NSOutputStream : NSStream
| `- note: class 'OutputStream' does not conform to the 'Sendable' protocol
74 | - (NSInteger)write:(const uint8_t *)buffer maxLength:(NSUInteger)len;
75 | // writes the bytes from the specified buffer to the stream up to len bytes. Returns the number of bytes actually written.
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:137:13: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
135 |
136 | DispatchQueue.main.async {
137 | self.keepAliveTimer = Timer.scheduledTimer(withTimeInterval: TimeInterval(self.options.keepAliveInterval / 2), repeats: true, block: { [weak self] timer in
| |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
| `- note: task-isolated 'self' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
138 | guard self?.outputStream?.streamStatus == .open,
139 | -self!.lastServerResponse.timeIntervalSinceNow < Double(self!.options.keepAliveInterval) * 1.5 else {
/Users/admin/builder/spi-builder-workspace/Sources/MQTTSession.swift:159:13: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
157 |
158 | DispatchQueue.main.async {
159 | self.autoReconnectTimer = Timer.scheduledTimer(withTimeInterval: TimeInterval(self.options.keepAliveInterval / 2), repeats: true, block: { [lsr = self.lastServerResponse, timeout = self.options.autoReconnectTimeout] timer in
| |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
| `- note: task-isolated 'self' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
160 | guard -lsr.timeIntervalSinceNow < timeout && self.state == .disconnected else {
161 | timer.invalidate()
[4/10] Compiling MQTTKit MQTTMessage.swift
[5/10] Compiling MQTTKit Constants.swift
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:37:16: warning: static property 'mostOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
35 | case qos2 = 0b0000_0100
36 |
37 | static let mostOnce = MQTTQoSLevel.qos0
| |- warning: static property 'mostOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'mostOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
38 | static let leastOnce = MQTTQoSLevel.qos1
39 | static let exactlyOnce = MQTTQoSLevel.qos2
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:38:16: warning: static property 'leastOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
:
36 |
37 | static let mostOnce = MQTTQoSLevel.qos0
38 | static let leastOnce = MQTTQoSLevel.qos1
| |- warning: static property 'leastOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'leastOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
39 | static let exactlyOnce = MQTTQoSLevel.qos2
40 |
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:39:16: warning: static property 'exactlyOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
:
37 | static let mostOnce = MQTTQoSLevel.qos0
38 | static let leastOnce = MQTTQoSLevel.qos1
39 | static let exactlyOnce = MQTTQoSLevel.qos2
| |- warning: static property 'exactlyOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'exactlyOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
40 |
41 | case failure = 0x80
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:45:5: warning: 'public' modifier is redundant for operator function declared in a public extension
43 |
44 | public extension MQTTQoSLevel {
45 | public static func < (lhs: MQTTQoSLevel, rhs: MQTTQoSLevel) -> Bool {
| `- warning: 'public' modifier is redundant for operator function declared in a public extension
46 | return lhs.rawValue < rhs.rawValue
47 | }
[6/10] Emitting module MQTTKit
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:37:16: warning: static property 'mostOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
35 | case qos2 = 0b0000_0100
36 |
37 | static let mostOnce = MQTTQoSLevel.qos0
| |- warning: static property 'mostOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'mostOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
38 | static let leastOnce = MQTTQoSLevel.qos1
39 | static let exactlyOnce = MQTTQoSLevel.qos2
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:38:16: warning: static property 'leastOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
:
36 |
37 | static let mostOnce = MQTTQoSLevel.qos0
38 | static let leastOnce = MQTTQoSLevel.qos1
| |- warning: static property 'leastOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'leastOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
39 | static let exactlyOnce = MQTTQoSLevel.qos2
40 |
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:39:16: warning: static property 'exactlyOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
30 | }
31 |
32 | public enum MQTTQoSLevel: UInt8, Comparable {
| `- note: consider making enum 'MQTTQoSLevel' conform to the 'Sendable' protocol
33 | case qos0 = 0b0000_0000
34 | case qos1 = 0b0000_0010
:
37 | static let mostOnce = MQTTQoSLevel.qos0
38 | static let leastOnce = MQTTQoSLevel.qos1
39 | static let exactlyOnce = MQTTQoSLevel.qos2
| |- warning: static property 'exactlyOnce' is not concurrency-safe because non-'Sendable' type 'MQTTQoSLevel' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'exactlyOnce' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
40 |
41 | case failure = 0x80
/Users/admin/builder/spi-builder-workspace/Sources/Constants.swift:45:5: warning: 'public' modifier is redundant for operator function declared in a public extension
43 |
44 | public extension MQTTQoSLevel {
45 | public static func < (lhs: MQTTQoSLevel, rhs: MQTTQoSLevel) -> Bool {
| `- warning: 'public' modifier is redundant for operator function declared in a public extension
46 | return lhs.rawValue < rhs.rawValue
47 | }
[7/10] Compiling MQTTKit MQTTSessionDelegate.swift
[8/10] Compiling MQTTKit MQTTOptions.swift
[9/10] Compiling MQTTKit Extensions.swift
[10/10] Compiling MQTTKit MQTTPacket.swift
/Users/admin/builder/spi-builder-workspace/Sources/MQTTPacket.swift:63:14: warning: function call causes an infinite recursion
61 |
62 | init(header: MQTTPacket.Header) {
63 | self.init(header: header)
| `- warning: function call causes an infinite recursion
64 | }
65 | }
Build complete! (5.34s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "MQTTKit",
"name" : "MQTTKit",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "MQTTKit",
"targets" : [
"MQTTKit"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "MQTTKitTests",
"module_type" : "SwiftTarget",
"name" : "MQTTKitTests",
"path" : "Tests",
"sources" : [
"MQTTKitTests.swift"
],
"target_dependencies" : [
"MQTTKit"
],
"type" : "test"
},
{
"c99name" : "MQTTKit",
"module_type" : "SwiftTarget",
"name" : "MQTTKit",
"path" : "Sources",
"product_memberships" : [
"MQTTKit"
],
"sources" : [
"Constants.swift",
"Extensions.swift",
"MQTTMessage.swift",
"MQTTOptions.swift",
"MQTTPacket.swift",
"MQTTSession.swift",
"MQTTSessionDelegate.swift"
],
"type" : "library"
}
],
"tools_version" : "4.0"
}
Done.