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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 DBThreadSafe, reference main (19a7f3), with Swift 5.10 for Linux on 6 Mar 2025 11:22:12 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-5.10-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dodobrands/DBThreadSafe-ios.git
Reference: main
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/dodobrands/DBThreadSafe-ios
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 19a7f34 Downgrade swift version (#17)
Cloned https://github.com/dodobrands/DBThreadSafe-ios.git
Revision (git rev-parse @):
19a7f347f721a5c18aa275fc2d5bc207c536d4a3
SUCCESS checkout https://github.com/dodobrands/DBThreadSafe-ios.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             5.10
Building package at path:  $PWD
https://github.com/dodobrands/DBThreadSafe-ios.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-5.10-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-5.10-latest: Pulling from finestructure/spi-images
Digest: sha256:8b386ca1081dd55ec0944429387f246ccb59ef99c9c8cbb418b0abd78460b38f
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-5.10-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/5] Compiling DBThreadSafe Lock.swift
/host/spi-builder-workspace/Sources/DBThreadSafe/Lock.swift:4:37: warning: stored property 'lock' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<pthread_rwlock_t>'
    nonisolated(unsafe) private let lock = UnsafeMutablePointer<pthread_rwlock_t>.allocate(capacity: 1)
                                    ^
Swift.UnsafeMutablePointer:1:23: note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
@frozen public struct UnsafeMutablePointer<Pointee> : _Pointer {
                      ^
[4/5] Emitting module DBThreadSafe
/host/spi-builder-workspace/Sources/DBThreadSafe/DBThreadSafeContainer.swift:4:37: warning: stored property 'value' of 'Sendable'-conforming generic class 'DBThreadSafeContainer' is mutable
    nonisolated(unsafe) private var value: T
                                    ^
/host/spi-builder-workspace/Sources/DBThreadSafe/Lock.swift:4:37: warning: stored property 'lock' of 'Sendable'-conforming class 'Lock' has non-sendable type 'UnsafeMutablePointer<pthread_rwlock_t>'
    nonisolated(unsafe) private let lock = UnsafeMutablePointer<pthread_rwlock_t>.allocate(capacity: 1)
                                    ^
Swift.UnsafeMutablePointer:1:23: note: generic struct 'UnsafeMutablePointer' does not conform to the 'Sendable' protocol
@frozen public struct UnsafeMutablePointer<Pointee> : _Pointer {
                      ^
[5/5] Compiling DBThreadSafe DBThreadSafeContainer.swift
/host/spi-builder-workspace/Sources/DBThreadSafe/DBThreadSafeContainer.swift:4:37: warning: stored property 'value' of 'Sendable'-conforming generic class 'DBThreadSafeContainer' is mutable
    nonisolated(unsafe) private var value: T
                                    ^
Build complete! (4.64s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "DBThreadSafe",
  "name" : "DBThreadSafe",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "DBThreadSafe",
      "targets" : [
        "DBThreadSafe"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DBThreadSafeTests",
      "module_type" : "SwiftTarget",
      "name" : "DBThreadSafeTests",
      "path" : "Tests/DBThreadSafeTests",
      "sources" : [
        "DBThreadSafeContainerTests.swift"
      ],
      "target_dependencies" : [
        "DBThreadSafe"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DBThreadSafe",
      "module_type" : "SwiftTarget",
      "name" : "DBThreadSafe",
      "path" : "Sources/DBThreadSafe",
      "product_memberships" : [
        "DBThreadSafe"
      ],
      "sources" : [
        "DBThreadSafeContainer.swift",
        "Lock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
basic-5.10-latest: Pulling from finestructure/spi-images
Digest: sha256:8b386ca1081dd55ec0944429387f246ccb59ef99c9c8cbb418b0abd78460b38f
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-5.10-latest
Done.