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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 CombineEx, reference master (8c55fe), with Swift 6.1 for Linux on 25 Apr 2025 09:59:03 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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/codeeagle/combineex.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/codeeagle/combineex
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 8c55fe6 change: modify maxConcurrent logic
Cloned https://github.com/codeeagle/combineex.git
Revision (git rev-parse @):
8c55fe68e87af97680a734a39462528113df0cf2
SUCCESS checkout https://github.com/codeeagle/combineex.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/codeeagle/combineex.git
https://github.com/codeeagle/combineex.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CombineEx",
  "name" : "CombineEx",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "CombineEx",
      "targets" : [
        "CombineEx"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CombineExTests",
      "module_type" : "SwiftTarget",
      "name" : "CombineExTests",
      "path" : "Tests/CombineExTests",
      "sources" : [
        "CombineExTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "CombineEx"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CombineEx",
      "module_type" : "SwiftTarget",
      "name" : "CombineEx",
      "path" : "Sources/CombineEx",
      "product_memberships" : [
        "CombineEx"
      ],
      "sources" : [
        "Combine+All.swift",
        "Combine+Any.swift",
        "Combine+Await.swift",
        "Combine+Race.swift",
        "CombineEx+Either.swift",
        "CombineEx+Publisher.swift",
        "CombineEx+Subscriber.swift",
        "TokenManager.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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
[3/10] Compiling CombineEx CombineEx+Subscriber.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[4/11] Compiling CombineEx CombineEx+Publisher.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[5/11] Compiling CombineEx TokenManager.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[6/11] Compiling CombineEx Combine+Await.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[7/11] Compiling CombineEx Combine+Any.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/11] Compiling CombineEx Combine+All.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[9/11] Emitting module CombineEx
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[10/11] Compiling CombineEx Combine+Race.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[11/11] Compiling CombineEx CombineEx+Either.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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
[2/9] Compiling CombineEx Combine+Race.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[3/9] Compiling CombineEx CombineEx+Either.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/10] Emitting module CombineEx
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[5/10] Compiling CombineEx Combine+Any.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[6/10] Compiling CombineEx Combine+All.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[7/10] Compiling CombineEx Combine+Await.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[8/10] Compiling CombineEx CombineEx+Publisher.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[9/10] Compiling CombineEx CombineEx+Subscriber.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
[10/10] Compiling CombineEx TokenManager.swift
/host/spi-builder-workspace/Sources/CombineEx/Combine+All.swift:1:8: error: no such module 'Combine'
  1 | import Combine
    |        `- error: no such module 'Combine'
  2 | import Foundation
  3 |
BUILD FAILURE 6.1 linux