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Build Information

Successful build of SwiftLogger, reference 2.0.0 (c65847), with Swift 6.1 for macOS (SPM) on 22 Sep 2025 14:19:25 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 InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/sergejs/SwiftLogger.git
Reference: 2.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sergejs/SwiftLogger
 * tag               2.0.0      -> FETCH_HEAD
HEAD is now at c65847f Merge pull request #6 from sergejs/feature/swift-logger-improvements
Cloned https://github.com/sergejs/SwiftLogger.git
Revision (git rev-parse @):
c65847f1a6209ea9e7ab9df519f93f744f0c4ecc
SUCCESS checkout https://github.com/sergejs/SwiftLogger.git at 2.0.0
========================================
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",
  "dependencies": [
    {
      "identity": "swiftlogger",
      "name": "SwiftLogger",
      "url": "https://github.com/sergejs/SwiftLogger.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftLogger",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/sergejs/SwiftLogger.git
[1/168] Fetching swiftlogger
Fetched https://github.com/sergejs/SwiftLogger.git from cache (0.64s)
Creating working copy for https://github.com/sergejs/SwiftLogger.git
Working copy of https://github.com/sergejs/SwiftLogger.git resolved at 2.0.0 (c65847f)
warning: '.resolve-product-dependencies': dependency 'swiftlogger' 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/sergejs/SwiftLogger.git
https://github.com/sergejs/SwiftLogger.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftLogger",
  "name" : "SwiftLogger",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftLogger",
      "targets" : [
        "SwiftLogger"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftLoggerTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftLoggerTests",
      "path" : "Tests/SwiftLoggerTests",
      "sources" : [
        "SwiftLoggerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftLogger"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftLogger",
      "module_type" : "SwiftTarget",
      "name" : "SwiftLogger",
      "path" : "Sources/SwiftLogger",
      "product_memberships" : [
        "SwiftLogger"
      ],
      "sources" : [
        "SwiftLogger.swift",
        "osLogger.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
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...
[0/4] Write sources
[1/4] Write swift-version-2F0A5646E1D333AE.txt
[3/7] Compiling SwiftLogger SwiftLogger.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:393:22: warning: static property '_sharedInstance' is not concurrency-safe because non-'Sendable' type 'Logger' may have shared mutable state; this is an error in the Swift 6 language mode
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    |                      |- warning: static property '_sharedInstance' is not concurrency-safe because non-'Sendable' type 'Logger' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: add '@MainActor' to make static property '_sharedInstance' part of global actor 'MainActor'
    |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
394 |   private static var _customInstance: Logger?
395 |   private static let instanceQueue = DispatchQueue(label: "com.swiftlogger.instance", attributes: .concurrent)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:394:22: warning: static property '_customInstance' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
394 |   private static var _customInstance: Logger?
    |                      |- warning: static property '_customInstance' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert '_customInstance' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: add '@MainActor' to make static property '_customInstance' part of global actor 'MainActor'
    |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
395 |   private static let instanceQueue = DispatchQueue(label: "com.swiftlogger.instance", attributes: .concurrent)
396 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:418:25: warning: capture of 'logger' with non-sendable type 'Logger' in a '@Sendable' closure
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    :
416 |   static func setSharedInstance(logger: Logger) {
417 |     instanceQueue.async(flags: .barrier) {
418 |       _customInstance = logger
    |                         `- warning: capture of 'logger' with non-sendable type 'Logger' in a '@Sendable' closure
419 |     }
420 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:424:13: warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    :
422 |   public func setupLogger(logger: LoggerType) {
423 |     queue.async(flags: .barrier) { [weak self] in
424 |       guard self?.activeLogger == nil else { return }
    |             `- warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
425 |       self?.activeLogger = logger
426 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:425:28: warning: capture of 'logger' with non-sendable type 'any LoggerType' in a '@Sendable' closure
257 | // MARK: - Logger Type Protocol
258 |
259 | public protocol LoggerType {
    |                 `- note: protocol 'LoggerType' does not conform to the 'Sendable' protocol
260 |   func log(
261 |     level: LogLevel,
    :
423 |     queue.async(flags: .barrier) { [weak self] in
424 |       guard self?.activeLogger == nil else { return }
425 |       self?.activeLogger = logger
    |                            `- warning: capture of 'logger' with non-sendable type 'any LoggerType' in a '@Sendable' closure
426 |     }
427 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:437:7: warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    :
435 |   public func setMinimumLogLevel(_ level: LogLevel) {
436 |     queue.async(flags: .barrier) { [weak self] in
437 |       self?.minimumLevel = level
    |       `- warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
438 |     }
439 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:437:28: warning: capture of 'level' with non-sendable type 'LogLevel' in a '@Sendable' closure
  7 | import Foundation
  8 |
  9 | public enum LogLevel: Int, Comparable {
    |             `- note: consider making enum 'LogLevel' conform to the 'Sendable' protocol
 10 |   case fault = 0
 11 |   case error = 1
    :
435 |   public func setMinimumLogLevel(_ level: LogLevel) {
436 |     queue.async(flags: .barrier) { [weak self] in
437 |       self?.minimumLevel = level
    |                            `- warning: capture of 'level' with non-sendable type 'LogLevel' in a '@Sendable' closure
438 |     }
439 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:449:7: warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    :
447 |   public func ignoreClass(className: String) {
448 |     queue.async(flags: .barrier) { [weak self] in
449 |       self?.disabledSymbols.insert(className)
    |       `- warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
450 |     }
451 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:461:7: warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    :
459 |   public func allowClass(className: String) {
460 |     queue.async(flags: .barrier) { [weak self] in
461 |       self?.disabledSymbols.remove(className)
    |       `- warning: capture of 'self' with non-sendable type 'Logger?' in a '@Sendable' closure
462 |     }
463 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:465:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
463 |
464 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
465 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
466 |         await actorLogger.allowClass(className: className)
    |               `- note: closure captures 'self' which is accessible to code in the current task
467 |       }
468 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:453:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
451 |
452 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
453 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
454 |         await actorLogger.ignoreClass(className: className)
    |               `- note: closure captures 'self' which is accessible to code in the current task
455 |       }
456 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:492:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
490 |     // Use modern actor-based logging if available
491 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
492 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
493 |         let canLog = await actorLogger.shouldLog(level: level, className: className)
    |                            `- note: closure captures 'self' which is accessible to code in the current task
494 |         guard canLog else { return }
495 |         await actorLogger.performLog(
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:380:24: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
378 |   ) async {
379 |     guard let activeLogger = activeLogger else { return }
380 |     await activeLogger.logAsync(
    |                        |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: sending 'self'-isolated 'level' to nonisolated instance method 'logAsync(level:className:message:_:_:line:)' risks causing data races between nonisolated and 'self'-isolated uses
381 |       level: level,
382 |       className: className,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:380:24: warning: sending 'activeLogger' risks causing data races; this is an error in the Swift 6 language mode
378 |   ) async {
379 |     guard let activeLogger = activeLogger else { return }
380 |     await activeLogger.logAsync(
    |                        |- warning: sending 'activeLogger' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: sending 'self'-isolated 'activeLogger' to nonisolated instance method 'logAsync(level:className:message:_:_:line:)' risks causing data races between nonisolated and 'self'-isolated uses
381 |       level: level,
382 |       className: className,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:429:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
427 |
428 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
429 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
430 |         await actorLogger.setupLogger(logger: logger)
    |               `- note: closure captures 'self' which is accessible to code in the current task
431 |       }
432 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:430:27: warning: sending 'logger' risks causing data races; this is an error in the Swift 6 language mode
428 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
429 |       Task {
430 |         await actorLogger.setupLogger(logger: logger)
    |                           |- warning: sending 'logger' risks causing data races; this is an error in the Swift 6 language mode
    |                           `- note: sending task-isolated 'logger' to actor-isolated instance method 'setupLogger(logger:)' risks causing data races between actor-isolated and task-isolated uses
431 |       }
432 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:441:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
439 |
440 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
441 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
442 |         await actorLogger.setMinimumLogLevel(level)
    |               `- note: closure captures 'self' which is accessible to code in the current task
443 |       }
444 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:442:27: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
440 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
441 |       Task {
442 |         await actorLogger.setMinimumLogLevel(level)
    |                           |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                           `- note: sending task-isolated 'level' to actor-isolated instance method 'setMinimumLogLevel' risks causing data races between actor-isolated and task-isolated uses
443 |       }
444 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:493:40: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
491 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
492 |       Task {
493 |         let canLog = await actorLogger.shouldLog(level: level, className: className)
    |                                        |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                                        `- note: sending task-isolated 'level' to actor-isolated instance method 'shouldLog(level:className:)' risks causing data races between actor-isolated and task-isolated uses
494 |         guard canLog else { return }
495 |         await actorLogger.performLog(
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:495:27: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
493 |         let canLog = await actorLogger.shouldLog(level: level, className: className)
494 |         guard canLog else { return }
495 |         await actorLogger.performLog(
    |                           |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                           `- note: sending task-isolated 'level' to actor-isolated instance method 'performLog(level:className:message:_:_:line:)' risks causing data races between actor-isolated and task-isolated uses
496 |           level: level,
497 |           className: className,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:529:29: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
527 |     line: Int
528 |   ) async {
529 |     guard await actorLogger.shouldLog(level: level, className: className) else { return }
    |                             |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                             `- note: sending task-isolated 'level' to actor-isolated instance method 'shouldLog(level:className:)' risks causing data races between actor-isolated and task-isolated uses
530 |     let messageValue = message()
531 |     await actorLogger.performAsyncLog(
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:531:23: warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
529 |     guard await actorLogger.shouldLog(level: level, className: className) else { return }
530 |     let messageValue = message()
531 |     await actorLogger.performAsyncLog(
    |                       |- warning: sending 'level' risks causing data races; this is an error in the Swift 6 language mode
    |                       `- note: sending task-isolated 'level' to actor-isolated instance method 'performAsyncLog(level:className:message:_:_:line:)' risks causing data races between actor-isolated and task-isolated uses
532 |       level: level,
533 |       className: className,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:543:12: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
541 |   public func trackObject(_ object: AnyObject, for className: String) {
542 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
543 |       Task {
    |            `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
544 |         await actorLogger.trackObject(object, className: className)
    |               `- note: closure captures 'self' which is accessible to code in the current task
545 |       }
546 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:544:27: warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
542 |     if #available(iOS 13.0, macOS 10.15, watchOS 6.0, tvOS 13.0, *) {
543 |       Task {
544 |         await actorLogger.trackObject(object, className: className)
    |                           |- warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
    |                           `- note: sending task-isolated 'object' to actor-isolated instance method 'trackObject(_:className:)' risks causing data races between actor-isolated and task-isolated uses
545 |       }
546 |     }
[4/7] Emitting module SwiftLogger
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:393:22: warning: static property '_sharedInstance' is not concurrency-safe because non-'Sendable' type 'Logger' may have shared mutable state; this is an error in the Swift 6 language mode
389 | }
390 |
391 | public final class Logger {
    |                    `- note: class 'Logger' does not conform to the 'Sendable' protocol
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
    |                      |- warning: static property '_sharedInstance' is not concurrency-safe because non-'Sendable' type 'Logger' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: add '@MainActor' to make static property '_sharedInstance' part of global actor 'MainActor'
    |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
394 |   private static var _customInstance: Logger?
395 |   private static let instanceQueue = DispatchQueue(label: "com.swiftlogger.instance", attributes: .concurrent)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/SwiftLogger.swift:394:22: warning: static property '_customInstance' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
392 |   // Thread-safe singleton implementation
393 |   private static let _sharedInstance = Logger()
394 |   private static var _customInstance: Logger?
    |                      |- warning: static property '_customInstance' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert '_customInstance' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: add '@MainActor' to make static property '_customInstance' part of global actor 'MainActor'
    |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
395 |   private static let instanceQueue = DispatchQueue(label: "com.swiftlogger.instance", attributes: .concurrent)
396 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/osLogger.swift:44:22: warning: static property 'subsystem' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
42 |
43 | extension OSLog {
44 |   private static var subsystem = Bundle.main.bundleIdentifier ?? "OS_LOGGER"
   |                      |- warning: static property 'subsystem' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                      |- note: convert 'subsystem' to a 'let' constant to make 'Sendable' shared state immutable
   |                      |- note: add '@MainActor' to make static property 'subsystem' part of global actor 'MainActor'
   |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
45 |   static let appLogger = OSLog(subsystem: subsystem, category: "AppLogger")
46 | }
[5/7] Compiling SwiftLogger osLogger.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftLogger/osLogger.swift:44:22: warning: static property 'subsystem' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
42 |
43 | extension OSLog {
44 |   private static var subsystem = Bundle.main.bundleIdentifier ?? "OS_LOGGER"
   |                      |- warning: static property 'subsystem' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                      |- note: convert 'subsystem' to a 'let' constant to make 'Sendable' shared state immutable
   |                      |- note: add '@MainActor' to make static property 'subsystem' part of global actor 'MainActor'
   |                      `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
45 |   static let appLogger = OSLog(subsystem: subsystem, category: "AppLogger")
46 | }
[5/7] Write Objects.LinkFileList
[6/7] Linking libSwiftLogger.dylib
Build complete! (4.96s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftLogger",
  "name" : "SwiftLogger",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftLogger",
      "targets" : [
        "SwiftLogger"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftLoggerTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftLoggerTests",
      "path" : "Tests/SwiftLoggerTests",
      "sources" : [
        "SwiftLoggerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftLogger"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftLogger",
      "module_type" : "SwiftTarget",
      "name" : "SwiftLogger",
      "path" : "Sources/SwiftLogger",
      "product_memberships" : [
        "SwiftLogger"
      ],
      "sources" : [
        "SwiftLogger.swift",
        "osLogger.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.