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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 SwiftViz, reference main (c24e43), with Swift 6.1 for Linux on 26 Apr 2025 21:08:58 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/swiftviz/SwiftViz.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/swiftviz/SwiftViz
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at c24e43f github actions can't handle this one...
Cloned https://github.com/swiftviz/SwiftViz.git
Revision (git rev-parse @):
c24e43f740c1c70b03a7d7c303016f418824138d
SUCCESS checkout https://github.com/swiftviz/SwiftViz.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/swiftviz/SwiftViz.git
https://github.com/swiftviz/SwiftViz.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-numerics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-numerics"
    }
  ],
  "manifest_display_name" : "SwiftViz",
  "name" : "SwiftViz",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftViz",
      "targets" : [
        "SwiftViz"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftVizTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftVizTests",
      "path" : "Tests/SwiftVizTests",
      "product_dependencies" : [
        "Numerics"
      ],
      "sources" : [
        "ExternalPackageTests.swift",
        "InterpolateTests.swift",
        "LinearScaleTests.swift",
        "LogScaleTests.swift",
        "NiceValueTests.swift",
        "NormalizeTests.swift",
        "PowerScaleTests.swift",
        "ScaleFactoryTests.swift",
        "TickTests.swift",
        "TimeScaleTests.swift"
      ],
      "target_dependencies" : [
        "SwiftViz"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftViz",
      "module_type" : "SwiftTarget",
      "name" : "SwiftViz",
      "path" : "Sources/SwiftViz",
      "product_dependencies" : [
        "Numerics"
      ],
      "product_memberships" : [
        "SwiftViz"
      ],
      "sources" : [
        "Axis.swift",
        "LinearScale.swift",
        "LogScale.swift",
        "NiceValue.swift",
        "PowerScale.swift",
        "Scale.swift",
        "Tick.swift",
        "TickScale.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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
Fetching https://github.com/apple/swift-numerics
[1/5674] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (0.43s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.0.3 (0.98s)
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.0.3
Building for debugging...
[0/6] Write sources
[4/6] Compiling _NumericsShims _NumericsShims.c
[5/6] Write swift-version-24593BA9C3E375BF.txt
[7/16] Compiling RealModule Real.swift
[8/17] Compiling RealModule RealFunctions.swift
[9/17] Compiling RealModule AlgebraicField.swift
[10/17] Compiling RealModule ApproximateEquality.swift
[11/17] Compiling RealModule Float+Real.swift
[12/17] Emitting module RealModule
[13/17] Compiling RealModule ElementaryFunctions.swift
[14/17] Compiling RealModule AugmentedArithmetic.swift
[15/17] Compiling RealModule Double+Real.swift
[16/17] Compiling RealModule Float80+Real.swift
[17/17] Compiling RealModule Float16+Real.swift
[19/23] Compiling ComplexModule ElementaryFunctions.swift
[20/23] Compiling ComplexModule Complex.swift
[21/23] Compiling ComplexModule Arithmetic.swift
[22/23] Emitting module ComplexModule
[23/23] Compiling ComplexModule Differentiable.swift
[25/26] Emitting module Numerics
[26/26] Compiling Numerics Numerics.swift
[28/35] Compiling SwiftViz Tick.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[29/36] Emitting module SwiftViz
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[30/36] Compiling SwiftViz TickScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[31/36] Compiling SwiftViz PowerScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[32/36] Compiling SwiftViz Scale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[33/36] Compiling SwiftViz NiceValue.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[34/36] Compiling SwiftViz LinearScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[35/36] Compiling SwiftViz Axis.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[36/36] Compiling SwiftViz LogScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
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
[2/11] Compiling RealModule ElementaryFunctions.swift
[3/12] Compiling RealModule AugmentedArithmetic.swift
[4/12] Compiling RealModule Double+Real.swift
[5/12] Compiling RealModule Float80+Real.swift
[6/12] Compiling RealModule Float+Real.swift
[7/12] Compiling RealModule Float16+Real.swift
[8/12] Compiling RealModule Real.swift
[9/12] Compiling RealModule RealFunctions.swift
[10/12] Emitting module RealModule
[11/12] Compiling RealModule AlgebraicField.swift
[12/12] Compiling RealModule ApproximateEquality.swift
[14/18] Compiling ComplexModule Differentiable.swift
[15/18] Compiling ComplexModule ElementaryFunctions.swift
[16/18] Compiling ComplexModule Arithmetic.swift
[17/18] Compiling ComplexModule Complex.swift
[18/18] Emitting module ComplexModule
[20/21] Compiling Numerics Numerics.swift
[21/21] Emitting module Numerics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[23/30] Emitting module SwiftViz
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[24/30] Compiling SwiftViz LogScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[25/30] Compiling SwiftViz Axis.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[26/31] Compiling SwiftViz Tick.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[27/31] Compiling SwiftViz PowerScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[28/31] Compiling SwiftViz Scale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[29/31] Compiling SwiftViz NiceValue.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[30/31] Compiling SwiftViz LinearScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
[31/31] Compiling SwiftViz TickScale.swift
/host/spi-builder-workspace/Sources/SwiftViz/LinearScale.swift:1:8: error: no such module 'CloudKit'
  1 | import CloudKit
    |        `- error: no such module 'CloudKit'
  2 | import Foundation
  3 | import Numerics
BUILD FAILURE 6.1 linux