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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 SafariUI, reference main (2b5d7d), with Swift 6.1 for Linux on 26 Apr 2025 08:55:37 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/vsanthanam/SafariUI.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/vsanthanam/SafariUI
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2b5d7d2 Update installation instructions in README.md
Cloned https://github.com/vsanthanam/SafariUI.git
Revision (git rev-parse @):
2b5d7d223881392b33be55f0057b8d90e0bb258f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/vsanthanam/SafariUI.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/vsanthanam/SafariUI.git
https://github.com/vsanthanam/SafariUI.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.2
error: fatalError
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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/nicklockwood/SwiftFormat
Fetching https://github.com/apple/swift-docc-plugin
[1/2049] Fetching swift-docc-plugin
[2050/48779] Fetching swift-docc-plugin, swiftformat
Fetched https://github.com/apple/swift-docc-plugin from cache (26.67s)
Fetched https://github.com/nicklockwood/SwiftFormat from cache (27.40s)
Computing version for https://github.com/nicklockwood/SwiftFormat
Computed https://github.com/nicklockwood/SwiftFormat at 0.55.5 (29.64s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.3 (0.56s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3375] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.44s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.01s)
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.3
Creating working copy for https://github.com/nicklockwood/SwiftFormat
Working copy of https://github.com/nicklockwood/SwiftFormat resolved at 0.55.5
[1/1] Compiling plugin SwiftFormatPlugin
[2/2] Compiling plugin Swift-DocC Preview
[3/3] Compiling plugin Swift-DocC
Building for debugging...
[3/7] Write sources
[6/7] Write swift-version-24593BA9C3E375BF.txt
[8/25] Compiling SafariView PrewarmingToken.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/SafariView/DismissButtonStyle.swift:26:8: error: no such module 'SafariServices'
24 | // SOFTWARE.
25 |
26 | import SafariServices
   |        `- error: no such module 'SafariServices'
27 |
28 | @available(iOS 14.0, macCatalyst 14.0, *)
[9/25] Compiling SafariView WrappedItemPresentation.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/SafariView/DismissButtonStyle.swift:26:8: error: no such module 'SafariServices'
24 | // SOFTWARE.
25 |
26 | import SafariServices
   |        `- error: no such module 'SafariServices'
27 |
28 | @available(iOS 14.0, macCatalyst 14.0, *)
[10/26] Compiling WebAuthentication Environment.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/26] Compiling WebAuthentication Presentation.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[12/26] Compiling WebAuthentication Modifiers.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[13/26] Compiling WebAuthentication WebAuthentication.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[14/26] Emitting module WebAuthentication
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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
[1/1] Compiling plugin SwiftFormatPlugin
[2/2] Compiling plugin Swift-DocC Preview
[3/3] Compiling plugin Swift-DocC
Building for debugging...
[3/4] Write swift-version-24593BA9C3E375BF.txt
[5/22] Compiling WebAuthentication Presentation.swift
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[6/22] Compiling SafariView PrewarmingToken.swift
/host/spi-builder-workspace/Sources/SafariView/DismissButtonStyle.swift:26:8: error: no such module 'SafariServices'
24 | // SOFTWARE.
25 |
26 | import SafariServices
   |        `- error: no such module 'SafariServices'
27 |
28 | @available(iOS 14.0, macCatalyst 14.0, *)
[7/23] Compiling WebAuthentication Environment.swift
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/23] Emitting module WebAuthentication
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[9/23] Compiling WebAuthentication Modifiers.swift
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
[10/23] Compiling WebAuthentication WebAuthentication.swift
/host/spi-builder-workspace/Sources/WebAuthentication/Environment.swift:26:8: error: no such module 'SwiftUI'
24 | // SOFTWARE.
25 |
26 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
27 |
28 | extension EnvironmentValues {
BUILD FAILURE 6.1 linux