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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 AlgoChecker, reference 0.1.5 (3c7863), with Swift 6.1 for Linux on 25 Apr 2025 17:24:45 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/kandelvijaya/algorithmchecker.git
Reference: 0.1.5
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/kandelvijaya/algorithmchecker
 * tag               0.1.5      -> FETCH_HEAD
HEAD is now at 3c78630 refactored nextPossibleSize with proper powering on linear complexity
Cloned https://github.com/kandelvijaya/algorithmchecker.git
Revision (git rev-parse @):
3c786303ec2cdd0018b77f1597d6e38e0448039a
SUCCESS checkout https://github.com/kandelvijaya/algorithmchecker.git at 0.1.5
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/kandelvijaya/algorithmchecker.git
https://github.com/kandelvijaya/algorithmchecker.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AlgoChecker",
  "name" : "AlgoChecker",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "AlgoChecker",
      "targets" : [
        "AlgoChecker"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AlgoCheckerTests",
      "module_type" : "SwiftTarget",
      "name" : "AlgoCheckerTests",
      "path" : "Tests/AlgoCheckerTests",
      "sources" : [
        "AlgoCheckerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "AlgoChecker"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AlgoChecker",
      "module_type" : "SwiftTarget",
      "name" : "AlgoChecker",
      "path" : "Sources/AlgoChecker",
      "product_memberships" : [
        "AlgoChecker"
      ],
      "sources" : [
        "AlgoChecker.swift",
        "Experimental.swift",
        "RandomizableInput.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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
[3/6] Compiling AlgoChecker AlgoChecker.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
[4/6] Compiling AlgoChecker Experimental.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/6] Emitting module AlgoChecker
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
[6/6] Compiling AlgoChecker RandomizableInput.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
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
[2/5] Compiling AlgoChecker RandomizableInput.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
[3/5] Compiling AlgoChecker Experimental.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/5] Emitting module AlgoChecker
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
[5/5] Compiling AlgoChecker AlgoChecker.swift
/host/spi-builder-workspace/Sources/AlgoChecker/AlgoChecker.swift:2:8: error: no such module 'QuartzCore'
  1 | import Foundation
  2 | import QuartzCore
    |        `- error: no such module 'QuartzCore'
  3 |
  4 |
BUILD FAILURE 6.1 linux