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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 Helpers, reference v0.7.0 (cc32e5), with Swift 6.0 for Linux on 21 Apr 2025 07:32:54 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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/toastersocks/Helpers.git
Reference: v0.7.0
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/toastersocks/Helpers
 * tag               v0.7.0     -> FETCH_HEAD
HEAD is now at cc32e57 Merge branch 'main' of https://github.com/toastersocks/Helpers
Cloned https://github.com/toastersocks/Helpers.git
Revision (git rev-parse @):
cc32e570cc0b2b45bdd6ac88f089a3755f46770c
SUCCESS checkout https://github.com/toastersocks/Helpers.git at v0.7.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/toastersocks/Helpers.git
https://github.com/toastersocks/Helpers.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Helpers",
  "name" : "Helpers",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Helpers",
      "targets" : [
        "Helpers"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HelpersTests",
      "module_type" : "SwiftTarget",
      "name" : "HelpersTests",
      "path" : "Tests/HelpersTests",
      "sources" : [
        "HelpersTests.swift"
      ],
      "target_dependencies" : [
        "Helpers"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Helpers",
      "module_type" : "SwiftTarget",
      "name" : "Helpers",
      "path" : "Sources/Helpers",
      "product_memberships" : [
        "Helpers"
      ],
      "sources" : [
        "Backport.swift",
        "Backports.swift",
        "Combine+.swift",
        "Extensions.swift",
        "PreviewHelpers.swift",
        "Variadic.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:9029076bb687edc160a3d5201c89e92dd9fa7309f33f090c4234365c83366c31
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/9] Compiling Helpers PreviewHelpers.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/9] Emitting module Helpers
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[5/9] Compiling Helpers Variadic.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[6/9] Compiling Helpers Extensions.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[7/9] Compiling Helpers Combine+.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[8/9] Compiling Helpers Backports.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[9/9] Compiling Helpers Backport.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:9029076bb687edc160a3d5201c89e92dd9fa7309f33f090c4234365c83366c31
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/8] Compiling Helpers Variadic.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[3/8] Compiling Helpers Backport.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[4/8] Compiling Helpers Backports.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/8] Emitting module Helpers
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[6/8] Compiling Helpers Combine+.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[7/8] Compiling Helpers Extensions.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
[8/8] Compiling Helpers PreviewHelpers.swift
/host/spi-builder-workspace/Sources/Helpers/Backport.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 |
BUILD FAILURE 6.0 linux