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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 Doubles with Swift 6.0 for Linux.

Build Command

bash -c docker run --rm -v "checkouts-4609320-0":/host -w "$workDir" 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: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mgriebling/Doubles.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/mgriebling/Doubles
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 11874bc Documentation addition
Cloned https://github.com/mgriebling/Doubles.git
Revision (git rev-parse @):
11874bcd84404008d643bc9178bc5671211ef103
SUCCESS checkout https://github.com/mgriebling/Doubles.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/mgriebling/Doubles.git
Running build ...
bash -c docker run --rm -v "checkouts-4609320-0":/host -w "$workDir" 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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/7] Compiling Doubles String+Char.swift
/host/spi-builder-workspace/Sources/Doubles/QDouble.swift:2:8: error: no such module 'simd'
   1 | import Foundation
   2 | import simd                // vector-based math library
     |        `- error: no such module 'simd'
   3 |
   4 | ///  Translated to Swift from an original work called qd-2.3.15
[4/7] Compiling Doubles QDouble.swift
/host/spi-builder-workspace/Sources/Doubles/QDouble.swift:2:8: error: no such module 'simd'
   1 | import Foundation
   2 | import simd                // vector-based math library
     |        `- error: no such module 'simd'
   3 |
   4 | ///  Translated to Swift from an original work called qd-2.3.15
[5/7] Compiling Doubles DDouble.swift
/host/spi-builder-workspace/Sources/Doubles/QDouble.swift:2:8: error: no such module 'simd'
   1 | import Foundation
   2 | import simd                // vector-based math library
     |        `- error: no such module 'simd'
   3 |
   4 | ///  Translated to Swift from an original work called qd-2.3.15
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/7] Emitting module Doubles
/host/spi-builder-workspace/Sources/Doubles/QDouble.swift:2:8: error: no such module 'simd'
   1 | import Foundation
   2 | import simd                // vector-based math library
     |        `- error: no such module 'simd'
   3 |
   4 | ///  Translated to Swift from an original work called qd-2.3.15
[7/7] Compiling Doubles Common.swift
/host/spi-builder-workspace/Sources/Doubles/QDouble.swift:2:8: error: no such module 'simd'
   1 | import Foundation
   2 | import simd                // vector-based math library
     |        `- error: no such module 'simd'
   3 |
   4 | ///  Translated to Swift from an original work called qd-2.3.15
BUILD FAILURE 6.0 linux
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.