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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 PopoverPresenter, reference main (8bcc99), with Swift 6.1 for Linux on 27 Apr 2025 07:47:56 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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/c-villain/PopoverPresenter.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/c-villain/PopoverPresenter
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8bcc993 Update Package.swift
Cloned https://github.com/c-villain/PopoverPresenter.git
Revision (git rev-parse @):
8bcc993c39a82ef5121f7d0ab55e9caf9a6ae4d3
SUCCESS checkout https://github.com/c-villain/PopoverPresenter.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/c-villain/PopoverPresenter.git
https://github.com/c-villain/PopoverPresenter.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "PopoverPresenter",
  "name" : "PopoverPresenter",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "PopoverPresenter",
      "targets" : [
        "PopoverPresenter"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PopoverPresenter",
      "module_type" : "SwiftTarget",
      "name" : "PopoverPresenter",
      "path" : "Sources/PopoverPresenter",
      "product_memberships" : [
        "PopoverPresenter"
      ],
      "sources" : [
        "CustomPopover.swift",
        "PopoverPresenter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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
[3/5] Compiling PopoverPresenter PopoverPresenter.swift
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/5] Emitting module PopoverPresenter
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
[5/5] Compiling PopoverPresenter CustomPopover.swift
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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
[2/4] Compiling PopoverPresenter PopoverPresenter.swift
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module PopoverPresenter
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
[4/4] Compiling PopoverPresenter CustomPopover.swift
/host/spi-builder-workspace/Sources/PopoverPresenter/CustomPopover.swift:8:8: error: no such module 'SwiftUI'
 6 | //
 7 |
 8 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 9 |
10 | struct CustomPopover<Item, PopoverContent>: ViewModifier where Item : Identifiable, PopoverContent: View {
BUILD FAILURE 6.1 linux