The Swift Package Index logo.Swift Package Index

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 AsyncTesting, reference main (7adf06), with Swift 6.1 for Linux on 27 Apr 2025 06:23:23 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/AsyncSwiftKits/AsyncTesting.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/AsyncSwiftKits/AsyncTesting
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7adf06a adds testTask function to use with XCTestCase
Cloned https://github.com/AsyncSwiftKits/AsyncTesting.git
Revision (git rev-parse @):
7adf06adc51d0b8053033d44d95d676f7a7e5554
SUCCESS checkout https://github.com/AsyncSwiftKits/AsyncTesting.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/AsyncSwiftKits/AsyncTesting.git
https://github.com/AsyncSwiftKits/AsyncTesting.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncTesting",
  "name" : "AsyncTesting",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncTesting",
      "targets" : [
        "AsyncTesting"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncTestingTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncTestingTests",
      "path" : "Tests/AsyncTestingTests",
      "sources" : [
        "AsyncTestingTests.swift"
      ],
      "target_dependencies" : [
        "AsyncTesting"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncTesting",
      "module_type" : "SwiftTarget",
      "name" : "AsyncTesting",
      "path" : "Sources/AsyncTesting",
      "product_memberships" : [
        "AsyncTesting"
      ],
      "sources" : [
        "AsyncExpectation.swift",
        "AsyncTesting.swift",
        "XCTestCase+AsyncTesting.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
[3/6] Compiling AsyncTesting AsyncTesting.swift
[4/6] Emitting module AsyncTesting
[5/6] Compiling AsyncTesting XCTestCase+AsyncTesting.swift
/host/spi-builder-workspace/Sources/AsyncTesting/XCTestCase+AsyncTesting.swift:54:20: warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
46 |     /// - Returns: result of closure
47 |     @discardableResult
48 |     public func testTask<Success>(timeout: Double = 60,
   |                          `- note: consider making generic parameter 'Success' conform to the 'Sendable' protocol
49 |                                   file: StaticString = #filePath,
50 |                                   line: UInt = #line,
   :
52 |         let done = asyncExpectation(description: "done")
53 |
54 |         let task = Task {
   |                    `- warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
55 |             let result = try await operation()
56 |             await done.fulfill()
/host/spi-builder-workspace/Sources/AsyncTesting/XCTestCase+AsyncTesting.swift:54:20: warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
46 |     /// - Returns: result of closure
47 |     @discardableResult
48 |     public func testTask<Success>(timeout: Double = 60,
   |                          `- note: consider making generic parameter 'Success' conform to the 'Sendable' protocol
49 |                                   file: StaticString = #filePath,
50 |                                   line: UInt = #line,
   :
52 |         let done = asyncExpectation(description: "done")
53 |
54 |         let task = Task {
   |                    `- warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
55 |             let result = try await operation()
56 |             await done.fulfill()
/host/spi-builder-workspace/Sources/AsyncTesting/XCTestCase+AsyncTesting.swift:62:31: warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
46 |     /// - Returns: result of closure
47 |     @discardableResult
48 |     public func testTask<Success>(timeout: Double = 60,
   |                          `- note: consider making generic parameter 'Success' conform to the 'Sendable' protocol
49 |                                   file: StaticString = #filePath,
50 |                                   line: UInt = #line,
   :
60 |         await waitForExpectations([done], timeout: timeout, file: file, line: line)
61 |
62 |         return try await task.value
   |                               `- warning: type 'Success' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
63 |     }
64 |
/host/spi-builder-workspace/Sources/AsyncTesting/XCTestCase+AsyncTesting.swift:60:15: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
58 |         }
59 |
60 |         await waitForExpectations([done], timeout: timeout, file: file, line: line)
   |               |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
   |               `- note: sending task-isolated 'self' to main actor-isolated instance method 'waitForExpectations(_:timeout:file:line:)' risks causing data races between main actor-isolated and task-isolated uses
61 |
62 |         return try await task.value
[6/6] Compiling AsyncTesting AsyncExpectation.swift
/host/spi-builder-workspace/Sources/AsyncTesting/AsyncExpectation.swift:6:51: error: cannot find 'NSEC_PER_SEC' in scope
  4 | extension Task where Success == Never, Failure == Never {
  5 |     static func sleep(seconds: Double) async throws {
  6 |         let nanoseconds = UInt64(seconds * Double(NSEC_PER_SEC))
    |                                                   `- error: cannot find 'NSEC_PER_SEC' in scope
  7 |         try await Task.sleep(nanoseconds: nanoseconds)
  8 |     }
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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
[2/5] Compiling AsyncTesting XCTestCase+AsyncTesting.swift
[3/5] Emitting module AsyncTesting
[4/5] Compiling AsyncTesting AsyncTesting.swift
[5/5] Compiling AsyncTesting AsyncExpectation.swift
/host/spi-builder-workspace/Sources/AsyncTesting/AsyncExpectation.swift:6:51: error: cannot find 'NSEC_PER_SEC' in scope
  4 | extension Task where Success == Never, Failure == Never {
  5 |     static func sleep(seconds: Double) async throws {
  6 |         let nanoseconds = UInt64(seconds * Double(NSEC_PER_SEC))
    |                                                   `- error: cannot find 'NSEC_PER_SEC' in scope
  7 |         try await Task.sleep(nanoseconds: nanoseconds)
  8 |     }
BUILD FAILURE 6.1 linux