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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 RetroKit, reference 0.1.2 (c04c2f), with Swift 6.0 for Linux on 6 Nov 2024 22:53:05 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dev-retro/RetroKit.git
Reference: 0.1.2
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/dev-retro/RetroKit
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at c04c2fd fixed a tools version
Cloned https://github.com/dev-retro/RetroKit.git
Revision (git rev-parse @):
c04c2fdd7eca92068aeeea692f624ba328f18a34
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/dev-retro/RetroKit.git at 0.1.2
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/dev-retro/RetroKit.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Fetching https://github.com/apple/swift-docc-plugin
[1/2038] Fetching swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin from cache (0.34s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.3 (2.11s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3154] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.34s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.52s)
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
[1/1] Compiling plugin Swift-DocC
[2/2] Compiling plugin Swift-DocC Preview
Building for debugging...
[2/7] Write sources
[3/7] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/14] Emitting module RetroKit
/host/spi-builder-workspace/Sources/RetroKit/RetroStateItem.swift:10:2: error: unknown attribute 'Observable'
 8 | import Foundation
 9 |
10 | @Observable
   |  `- error: unknown attribute 'Observable'
11 | /// Holds state value of the platform library
12 | public class RetroStateItem<Value> {
[6/14] Compiling RetroKit RetroSettings.swift
[7/14] Compiling RetroKit RetroState.swift
[8/14] Compiling RetroKit RetroStateItem.swift
/host/spi-builder-workspace/Sources/RetroKit/RetroStateItem.swift:10:2: error: unknown attribute 'Observable'
 8 | import Foundation
 9 |
10 | @Observable
   |  `- error: unknown attribute 'Observable'
11 | /// Holds state value of the platform library
12 | public class RetroStateItem<Value> {
[9/14] Compiling RetroKit RetroPlatform.swift
[10/14] Compiling RetroKit RetroSetting.swift
[11/14] Compiling RetroKit RetroInput.swift
BUILD FAILURE 6.0 linux