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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

Successful build of TLVCoding, reference master (fa3142), with Swift 6.0 for Linux on 3 Nov 2024 01:12:42 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pureswift/tlvcoding.git
Reference: master
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/pureswift/tlvcoding
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at fa31426 Update GitHub CI
Cloned https://github.com/pureswift/tlvcoding.git
Revision (git rev-parse @):
fa31426c76d1630fe8942e6ebf2eadc20f280995
SUCCESS checkout https://github.com/pureswift/tlvcoding.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/pureswift/tlvcoding.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/12] Emitting module TLVCoding
/host/spi-builder-workspace/Sources/Format.swift:105:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
103 |
104 |     @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
105 |     static let iso8601Formatter: ISO8601DateFormatter = {
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
106 |         let formatter = ISO8601DateFormatter()
107 |         formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[4/13] Compiling TLVCoding TLVCodable.swift
[5/13] Compiling TLVCoding Item.swift
[6/13] Compiling TLVCoding DataConvertible.swift
/host/spi-builder-workspace/Sources/Format.swift:105:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
103 |
104 |     @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
105 |     static let iso8601Formatter: ISO8601DateFormatter = {
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
106 |         let formatter = ISO8601DateFormatter()
107 |         formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[7/13] Compiling TLVCoding Decoder.swift
/host/spi-builder-workspace/Sources/Format.swift:105:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
103 |
104 |     @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
105 |     static let iso8601Formatter: ISO8601DateFormatter = {
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
106 |         let formatter = ISO8601DateFormatter()
107 |         formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[8/13] Compiling TLVCoding CodingKey.swift
[9/13] Compiling TLVCoding Data.swift
[10/13] Compiling TLVCoding Encoder.swift
/host/spi-builder-workspace/Sources/Format.swift:105:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
103 |
104 |     @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
105 |     static let iso8601Formatter: ISO8601DateFormatter = {
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
106 |         let formatter = ISO8601DateFormatter()
107 |         formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[11/13] Compiling TLVCoding Integer.swift
[12/13] Compiling TLVCoding Format.swift
/host/spi-builder-workspace/Sources/Format.swift:105:16: warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
103 |
104 |     @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
105 |     static let iso8601Formatter: ISO8601DateFormatter = {
    |                |- warning: static property 'iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'iso8601Formatter' 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
106 |         let formatter = ISO8601DateFormatter()
107 |         formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[13/13] Compiling TLVCoding TypeCode.swift
Build complete! (9.53s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TLVCoding",
  "name" : "TLVCoding",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TLVCoding",
      "targets" : [
        "TLVCoding"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TLVCodingTests",
      "module_type" : "SwiftTarget",
      "name" : "TLVCodingTests",
      "path" : "Tests/TLVCodingTests",
      "sources" : [
        "TLVCodingTests.swift"
      ],
      "target_dependencies" : [
        "TLVCoding"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TLVCoding",
      "module_type" : "SwiftTarget",
      "name" : "TLVCoding",
      "path" : "Sources",
      "product_memberships" : [
        "TLVCoding"
      ],
      "sources" : [
        "CodingKey.swift",
        "Data.swift",
        "DataConvertible.swift",
        "Decoder.swift",
        "Encoder.swift",
        "Format.swift",
        "Integer.swift",
        "Item.swift",
        "TLVCodable.swift",
        "TypeCode.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Done.