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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build Replacer, reference 0.1.0 (2042d6), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 00:49:22 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tattn/Replacer.git
Reference: 0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tattn/Replacer
 * tag               0.1.0      -> FETCH_HEAD
HEAD is now at 2042d67 Update Swift 5.0
Cloned https://github.com/tattn/Replacer.git
Revision (git rev-parse @):
2042d67080e9de57673f8bdf25788510377f975e
SUCCESS checkout https://github.com/tattn/Replacer.git at 0.1.0
Fetching https://github.com/Alamofire/Alamofire.git
[1/29789] Fetching alamofire
Fetched https://github.com/Alamofire/Alamofire.git from cache (3.43s)
Computing version for https://github.com/Alamofire/Alamofire.git
Computed https://github.com/Alamofire/Alamofire.git at 4.9.1 (0.72s)
Creating working copy for https://github.com/Alamofire/Alamofire.git
Working copy of https://github.com/Alamofire/Alamofire.git resolved at 4.9.1
========================================
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": "replacer",
      "name": "Replacer",
      "url": "https://github.com/tattn/Replacer.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Replacer",
      "dependencies": [
        {
          "identity": "alamofire",
          "name": "Alamofire",
          "url": "https://github.com/Alamofire/Alamofire.git",
          "version": "4.9.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Alamofire",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/tattn/Replacer.git
[1/216] Fetching replacer
Fetched https://github.com/tattn/Replacer.git from cache (0.71s)
Fetching https://github.com/Alamofire/Alamofire.git from cache
Fetched https://github.com/Alamofire/Alamofire.git from cache (0.65s)
Computing version for https://github.com/Alamofire/Alamofire.git
Computed https://github.com/Alamofire/Alamofire.git at 4.9.1 (0.04s)
Creating working copy for https://github.com/tattn/Replacer.git
Working copy of https://github.com/tattn/Replacer.git resolved at 0.1.0 (2042d67)
Creating working copy for https://github.com/Alamofire/Alamofire.git
Working copy of https://github.com/Alamofire/Alamofire.git resolved at 4.9.1
warning: '.resolve-product-dependencies': dependency 'replacer' is not used by any target
Found 1 product dependencies
  - Alamofire
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/tattn/Replacer.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version--7754E27361AE5C74.txt
[4/9] Compiling Replacer URLStubProtocol.swift
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubManager.swift:13:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 | import Foundation
10 |
11 | public final class URLStubManager {
   |                    `- note: class 'URLStubManager' does not conform to the 'Sendable' protocol
12 |
13 |     public static let shared = URLStubManager()
   |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     fileprivate var stubs: [URLStub] = []
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubProtocol.swift:24:36: warning: capture of 'stub' with non-sendable type 'URLStub' in a `@Sendable` closure; this is an error in the Swift 6 language mode
22 |         let stub = URLStubManager.shared.findStub(by: request)!
23 |         DispatchQueue.global().asyncAfter(deadline: DispatchTime.now() + stub._delay) {
24 |             if let responseBlock = stub._responseBlock {
   |                                    `- warning: capture of 'stub' with non-sendable type 'URLStub' in a `@Sendable` closure; this is an error in the Swift 6 language mode
25 |                 (stub._data, stub._error) = responseBlock(self.request)
26 |                 stub._responseBlock = nil
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStub.swift:11:14: note: class 'URLStub' does not conform to the 'Sendable' protocol
  9 | import Foundation
 10 |
 11 | public class URLStub {
    |              `- note: class 'URLStub' does not conform to the 'Sendable' protocol
 12 |     var _url: String = ""
 13 |     var _method: HTTPMethod = .get
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubProtocol.swift:25:59: warning: capture of 'self' with non-sendable type 'URLStubProtocol' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 9 | import Foundation
10 |
11 | public class URLStubProtocol: URLProtocol {
   |              `- note: class 'URLStubProtocol' does not conform to the 'Sendable' protocol
12 |
13 |     override open class func canInit(with request: URLRequest) -> Bool {
   :
23 |         DispatchQueue.global().asyncAfter(deadline: DispatchTime.now() + stub._delay) {
24 |             if let responseBlock = stub._responseBlock {
25 |                 (stub._data, stub._error) = responseBlock(self.request)
   |                                                           `- warning: capture of 'self' with non-sendable type 'URLStubProtocol' in a `@Sendable` closure; this is an error in the Swift 6 language mode
26 |                 stub._responseBlock = nil
27 |             }
[5/9] Compiling Replacer Replacer.swift
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubManager.swift:13:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 | import Foundation
10 |
11 | public final class URLStubManager {
   |                    `- note: class 'URLStubManager' does not conform to the 'Sendable' protocol
12 |
13 |     public static let shared = URLStubManager()
   |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     fileprivate var stubs: [URLStub] = []
[6/9] Compiling Replacer URLStub.swift
[7/9] Compiling Replacer URLSessionConfiguration+.swift
[8/9] Emitting module Replacer
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubManager.swift:13:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 | import Foundation
10 |
11 | public final class URLStubManager {
   |                    `- note: class 'URLStubManager' does not conform to the 'Sendable' protocol
12 |
13 |     public static let shared = URLStubManager()
   |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     fileprivate var stubs: [URLStub] = []
[9/9] Compiling Replacer URLStubManager.swift
/Users/admin/builder/spi-builder-workspace/Sources/Replacer/URLStubManager.swift:13:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 | import Foundation
10 |
11 | public final class URLStubManager {
   |                    `- note: class 'URLStubManager' does not conform to the 'Sendable' protocol
12 |
13 |     public static let shared = URLStubManager()
   |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'URLStubManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     fileprivate var stubs: [URLStub] = []
[10/11] Compiling TestReplacer XCTest+.swift
/Users/admin/builder/spi-builder-workspace/Sources/TestReplacer/XCTest+.swift:16:78: error: ambiguous use of 'tearDown'
14 |
15 |     private static let swizzleTearDown: Void = {
16 |         let tearDown = class_getInstanceMethod(XCTest.self, #selector(XCTest.tearDown))!
   |                                                                              `- error: ambiguous use of 'tearDown'
17 |         let replacerTearDown = class_getInstanceMethod(XCTest.self, #selector(XCTest.autoResetTearDown))!
18 |         method_exchangeImplementations(tearDown, replacerTearDown)
XCTest.XCTest:18:15: note: found this candidate in module 'XCTest'
16 |     open func setUpWithError() throws
17 |     open func setUp()
18 |     open func tearDown()
   |               `- note: found this candidate in module 'XCTest'
19 |     open func tearDownWithError() throws
20 |     open func tearDown(completion: @escaping ((any Error)?) -> Void)
   |               `- note: found this candidate in module 'XCTest'
21 |     open func tearDown() async throws
22 |     @available(swift, obsoleted: 3, renamed: "tearDown(completion:)")
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/11] Emitting module TestReplacer
/Users/admin/builder/spi-builder-workspace/Sources/TestReplacer/XCTest+.swift:16:78: error: ambiguous use of 'tearDown'
14 |
15 |     private static let swizzleTearDown: Void = {
16 |         let tearDown = class_getInstanceMethod(XCTest.self, #selector(XCTest.tearDown))!
   |                                                                              `- error: ambiguous use of 'tearDown'
17 |         let replacerTearDown = class_getInstanceMethod(XCTest.self, #selector(XCTest.autoResetTearDown))!
18 |         method_exchangeImplementations(tearDown, replacerTearDown)
XCTest.XCTest:18:15: note: found this candidate in module 'XCTest'
16 |     open func setUpWithError() throws
17 |     open func setUp()
18 |     open func tearDown()
   |               `- note: found this candidate in module 'XCTest'
19 |     open func tearDownWithError() throws
20 |     open func tearDown(completion: @escaping ((any Error)?) -> Void)
   |               `- note: found this candidate in module 'XCTest'
21 |     open func tearDown() async throws
22 |     @available(swift, obsoleted: 3, renamed: "tearDown(completion:)")
BUILD FAILURE 6.0 macosSpm