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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 Dysprosium, reference master (f924ff), with Swift 6.1 for Linux on 26 Apr 2025 02:22:33 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/e-sites/Dysprosium.git
Reference: master
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/e-sites/Dysprosium
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at f924ff3 Removed AnyObject protocol inheritance
Cloned https://github.com/e-sites/Dysprosium.git
Revision (git rev-parse @):
f924ff3e0c5c3b5c6577916216155156bb7a950e
SUCCESS checkout https://github.com/e-sites/Dysprosium.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/e-sites/Dysprosium.git
https://github.com/e-sites/Dysprosium.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "lithium",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/e-sites/lithium.git"
    }
  ],
  "manifest_display_name" : "Dysprosium",
  "name" : "Dysprosium",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    }
  ],
  "products" : [
    {
      "name" : "Dysprosium",
      "targets" : [
        "Dysprosium"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "DysprosiumLog",
      "targets" : [
        "DysprosiumLog"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DysprosiumLog",
      "module_type" : "SwiftTarget",
      "name" : "DysprosiumLog",
      "path" : "Sources/Logging",
      "product_dependencies" : [
        "Lithium"
      ],
      "product_memberships" : [
        "DysprosiumLog"
      ],
      "sources" : [
        "DysprosiumLogging.swift"
      ],
      "target_dependencies" : [
        "Dysprosium"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Dysprosium",
      "module_type" : "SwiftTarget",
      "name" : "Dysprosium",
      "path" : "Sources/Core",
      "product_memberships" : [
        "Dysprosium",
        "DysprosiumLog"
      ],
      "sources" : [
        "Dysprosium.swift",
        "DysprosiumCompatible.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
Fetching https://github.com/e-sites/lithium.git
[1/304] Fetching lithium
Fetched https://github.com/e-sites/lithium.git from cache (0.17s)
Computing version for https://github.com/e-sites/lithium.git
Computed https://github.com/e-sites/lithium.git at 9.0.5 (0.65s)
Fetching https://github.com/apple/swift-log.git
[1/3836] Fetching swift-log
Fetched https://github.com/apple/swift-log.git from cache (0.33s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.6.3 (0.77s)
Creating working copy for https://github.com/e-sites/lithium.git
Working copy of https://github.com/e-sites/lithium.git resolved at 9.0.5
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.6.3
Building for debugging...
[0/5] Write sources
[4/5] Write swift-version-24593BA9C3E375BF.txt
[6/13] Compiling Logging MetadataProvider.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/13] Emitting module Dysprosium
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[8/13] Compiling Dysprosium DysprosiumCompatible.swift
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[9/13] Compiling Dysprosium Dysprosium.swift
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[10/13] Compiling Logging Locks.swift
[11/13] Emitting module Logging
[12/13] Compiling Logging LogHandler.swift
[13/13] Compiling Logging Logging.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/9] Emitting module Dysprosium
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[3/9] Compiling Dysprosium DysprosiumCompatible.swift
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[4/9] Compiling Dysprosium Dysprosium.swift
/host/spi-builder-workspace/Sources/Core/Dysprosium.swift:10:8: error: no such module 'UIKit'
  8 |
  9 | import Foundation
 10 | import UIKit
    |        `- error: no such module 'UIKit'
 11 |
 12 | // MARK: - DysprosiumObject
[5/9] Compiling Logging MetadataProvider.swift
[6/9] Emitting module Logging
[7/9] Compiling Logging LogHandler.swift
BUILD FAILURE 6.1 linux