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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 CatPrint, reference main (8901ba), with Swift 6.1 for Linux on 28 Apr 2025 03:10:33 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-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/Benzoate/CatPrint.swift.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/Benzoate/CatPrint.swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8901ba6 Add optional setting for using run length encoding
Cloned https://github.com/Benzoate/CatPrint.swift.git
Revision (git rev-parse @):
8901ba6dbd620f4c004231ee98604c7c2a42b16e
SUCCESS checkout https://github.com/Benzoate/CatPrint.swift.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Benzoate/CatPrint.swift.git
https://github.com/Benzoate/CatPrint.swift.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CatPrint",
  "name" : "CatPrint",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "16.0"
    }
  ],
  "products" : [
    {
      "name" : "CatPrint",
      "targets" : [
        "CatPrint"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "CatPrint",
      "module_type" : "SwiftTarget",
      "name" : "CatPrint",
      "path" : "Sources",
      "product_memberships" : [
        "CatPrint"
      ],
      "sources" : [
        "CatPrinter.swift",
        "Extensions/Image+Grayscale.swift",
        "Models/CatPrinter+BluetoothInfo.swift",
        "Models/CatPrinter+ImageProcessingOption.swift",
        "Models/CatPrinter+Printer.swift",
        "Models/CatPrinter+Settings.swift",
        "Models/CatPrinterError.swift",
        "Models/PrinterImageData.swift",
        "PrinterCommands.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-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
[3/11] Compiling CatPrint PrinterImageData.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[4/12] Compiling CatPrint CatPrinterError.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[5/12] Compiling CatPrint CatPrinter+Settings.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[6/12] Compiling CatPrint PrinterCommands.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/12] Emitting module CatPrint
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[8/12] Compiling CatPrint CatPrinter+BluetoothInfo.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[9/12] Compiling CatPrint CatPrinter+Printer.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[10/12] Compiling CatPrint CatPrinter+ImageProcessingOption.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[11/12] Compiling CatPrint CatPrinter.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[12/12] Compiling CatPrint Image+Grayscale.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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
[2/10] Compiling CatPrint CatPrinterError.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[3/11] Compiling CatPrint PrinterImageData.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[4/11] Compiling CatPrint CatPrinter+Settings.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[5/11] Compiling CatPrint CatPrinter+ImageProcessingOption.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[6/11] Compiling CatPrint CatPrinter+Printer.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[7/11] Compiling CatPrint PrinterCommands.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/11] Emitting module CatPrint
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[9/11] Compiling CatPrint CatPrinter+BluetoothInfo.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[10/11] Compiling CatPrint CatPrinter.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
[11/11] Compiling CatPrint Image+Grayscale.swift
/host/spi-builder-workspace/Sources/CatPrinter.swift:2:29: error: no such module 'CoreBluetooth'
  1 | import Foundation
  2 | @_implementationOnly import CoreBluetooth
    |                             `- error: no such module 'CoreBluetooth'
  3 | import Combine
  4 | import CoreGraphics
BUILD FAILURE 6.1 linux