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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 Noted, reference 2.2.1 (323d0f), with Swift 6.1 for Linux on 28 Apr 2025 20:19:41 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ml-archive/Noted.git
Reference: 2.2.1
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/ml-archive/Noted
 * tag               2.2.1      -> FETCH_HEAD
HEAD is now at 323d0fb Merge pull request #23 from nodes-ios/feature/SPMsupport
Cloned https://github.com/ml-archive/Noted.git
Revision (git rev-parse @):
323d0fb906d593fb7d17ad176c65e3cc9e9b8b8b
SUCCESS checkout https://github.com/ml-archive/Noted.git at 2.2.1
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ml-archive/Noted.git
https://github.com/ml-archive/Noted.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Noted",
  "name" : "Noted",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Noted",
      "targets" : [
        "Noted"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NotedTests",
      "module_type" : "SwiftTarget",
      "name" : "NotedTests",
      "path" : "NotedTests",
      "sources" : [
        "NotedTests.swift",
        "Test Objects/TestFilter.swift",
        "Test Objects/TestNote.swift",
        "Test Objects/TestNotification.swift",
        "Test Objects/TestObserver.swift"
      ],
      "target_dependencies" : [
        "Noted"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Noted",
      "module_type" : "SwiftTarget",
      "name" : "Noted",
      "path" : "Sources/Noted",
      "product_memberships" : [
        "Noted"
      ],
      "sources" : [
        "NoteFilter.swift",
        "NoteObserver.swift",
        "NoteType.swift",
        "Noted.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/7] Compiling Noted Noted.swift
/host/spi-builder-workspace/Sources/Noted/Noted.swift:12:23: warning: static property 'defaultInstance' is not concurrency-safe because non-'Sendable' type 'Noted' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public class Noted {
   |              `- note: class 'Noted' does not conform to the 'Sendable' protocol
11 |
12 |     public static let defaultInstance = Noted()
   |                       |- warning: static property 'defaultInstance' is not concurrency-safe because non-'Sendable' type 'Noted' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: add '@MainActor' to make static property 'defaultInstance' part of global actor 'MainActor'
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:31: error: cannot find 'NSHashTable' in scope
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                               `- error: cannot find 'NSHashTable' in scope
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:64: error: cannot infer contextual base in reference to member 'weakMemory'
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                                                                `- error: cannot infer contextual base in reference to member 'weakMemory'
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
/host/spi-builder-workspace/Sources/Noted/Noted.swift:46:29: warning: capture of 'self' with non-sendable type 'Noted' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public class Noted {
   |              `- note: class 'Noted' does not conform to the 'Sendable' protocol
11 |
12 |     public static let defaultInstance = Noted()
   :
44 |     public func post(note: NoteType) {
45 |         notedQueue.async {
46 |             for receiver in self.observers.filter({ !$0.noteFilter.shouldFilter(note: note) }) {
   |                             `- warning: capture of 'self' with non-sendable type 'Noted' in a '@Sendable' closure; this is an error in the Swift 6 language mode
47 |                 DispatchQueue.main.async {
48 |                     receiver.didReceive(note: note)
/host/spi-builder-workspace/Sources/Noted/Noted.swift:46:87: warning: capture of 'note' with non-sendable type 'any NoteType' in a '@Sendable' closure; this is an error in the Swift 6 language mode
44 |     public func post(note: NoteType) {
45 |         notedQueue.async {
46 |             for receiver in self.observers.filter({ !$0.noteFilter.shouldFilter(note: note) }) {
   |                                                                                       `- warning: capture of 'note' with non-sendable type 'any NoteType' in a '@Sendable' closure; this is an error in the Swift 6 language mode
47 |                 DispatchQueue.main.async {
48 |                     receiver.didReceive(note: note)
/host/spi-builder-workspace/Sources/Noted/NoteType.swift:11:17: note: protocol 'NoteType' does not conform to the 'Sendable' protocol
 9 | import Foundation
10 |
11 | public protocol NoteType { }
   |                 `- note: protocol 'NoteType' does not conform to the 'Sendable' protocol
12 |
/host/spi-builder-workspace/Sources/Noted/Noted.swift:46:87: warning: capture of 'note' with non-sendable type 'any NoteType' in an isolated closure; this is an error in the Swift 6 language mode
44 |     public func post(note: NoteType) {
45 |         notedQueue.async {
46 |             for receiver in self.observers.filter({ !$0.noteFilter.shouldFilter(note: note) }) {
   |                                                                                       `- warning: capture of 'note' with non-sendable type 'any NoteType' in an isolated closure; this is an error in the Swift 6 language mode
47 |                 DispatchQueue.main.async {
48 |                     receiver.didReceive(note: note)
/host/spi-builder-workspace/Sources/Noted/NoteType.swift:11:17: note: protocol 'NoteType' does not conform to the 'Sendable' protocol
 9 | import Foundation
10 |
11 | public protocol NoteType { }
   |                 `- note: protocol 'NoteType' does not conform to the 'Sendable' protocol
12 |
[4/7] Compiling Noted NoteType.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/7] Compiling Noted NoteObserver.swift
[6/7] Compiling Noted NoteFilter.swift
[7/7] Emitting module Noted
/host/spi-builder-workspace/Sources/Noted/Noted.swift:12:23: warning: static property 'defaultInstance' is not concurrency-safe because non-'Sendable' type 'Noted' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | import Foundation
 9 |
10 | public class Noted {
   |              `- note: class 'Noted' does not conform to the 'Sendable' protocol
11 |
12 |     public static let defaultInstance = Noted()
   |                       |- warning: static property 'defaultInstance' is not concurrency-safe because non-'Sendable' type 'Noted' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: add '@MainActor' to make static property 'defaultInstance' part of global actor 'MainActor'
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:31: error: cannot find 'NSHashTable' in scope
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                               `- error: cannot find 'NSHashTable' in scope
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:64: error: cannot infer contextual base in reference to member 'weakMemory'
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                                                                `- error: cannot infer contextual base in reference to member 'weakMemory'
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/6] Compiling Noted Noted.swift
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:31: error: cannot find 'NSHashTable' in scope
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                               `- error: cannot find 'NSHashTable' in scope
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:64: error: cannot infer contextual base in reference to member 'weakMemory'
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                                                                `- error: cannot infer contextual base in reference to member 'weakMemory'
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
[3/6] Compiling Noted NoteType.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/6] Compiling Noted NoteFilter.swift
[5/6] Compiling Noted NoteObserver.swift
[6/6] Emitting module Noted
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:31: error: cannot find 'NSHashTable' in scope
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                               `- error: cannot find 'NSHashTable' in scope
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
/host/spi-builder-workspace/Sources/Noted/Noted.swift:15:64: error: cannot infer contextual base in reference to member 'weakMemory'
13 |
14 |     private let notedQueue = DispatchQueue(label: "com.nodes.noted", attributes: .concurrent)
15 |     internal var _observers = NSHashTable<AnyObject>(options: .weakMemory)
   |                                                                `- error: cannot infer contextual base in reference to member 'weakMemory'
16 |
17 |     internal static let passthroughFilter = PassthroughNoteFilter()
BUILD FAILURE 6.1 linux