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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 SLTools, reference 1.2.0 (9dffa6), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 22:29:06 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/shial4/sltools.git
Reference: 1.2.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/shial4/sltools
 * tag               1.2.0      -> FETCH_HEAD
HEAD is now at 9dffa6e Update to Kitura 2.0
Cloned https://github.com/shial4/sltools.git
Revision (git rev-parse @):
9dffa6e33d2d32d3517c683fc408d630141c5c5e
SUCCESS checkout https://github.com/shial4/sltools.git at 1.2.0
Fetching https://github.com/IBM-Swift/BlueCryptor.git
Fetching https://github.com/IBM-Swift/CCurl.git
Fetching https://github.com/IBM-Swift/Kitura-TemplateEngine.git
Fetching https://github.com/IBM-Swift/CommonCrypto.git
Fetching https://github.com/IBM-Swift/BlueSSLService.git
Fetching https://github.com/IBM-Swift/Kitura-net.git
Fetching https://github.com/IBM-Swift/Kitura.git
[1/184] Fetching ccurl
[62/216] Fetching ccurl, commoncrypto
Fetched https://github.com/IBM-Swift/CommonCrypto.git from cache (0.70s)
[1/1652] Fetching bluecryptor
[332/2090] Fetching bluecryptor, kitura-templateengine
Fetching https://github.com/IBM-Swift/KituraContracts.git
[984/11634] Fetching bluecryptor, kitura-templateengine, kitura-net
[985/13722] Fetching bluecryptor, kitura-templateengine, kitura-net, bluesslservice
Fetched https://github.com/IBM-Swift/BlueCryptor.git from cache (0.95s)
Fetched https://github.com/IBM-Swift/CCurl.git from cache (0.95s)
[2188/28979] Fetching kitura-templateengine, kitura-net, bluesslservice, kitura
Fetching https://github.com/IBM-Swift/LoggerAPI.git
Fetching https://github.com/IBM-Swift/BlueSocket.git
Fetched https://github.com/IBM-Swift/BlueSSLService.git from cache (1.05s)
[2261/26891] Fetching kitura-templateengine, kitura-net, kitura
[5575/29434] Fetching kitura-templateengine, kitura-net, kitura, kituracontracts
[12800/30205] Fetching kitura-templateengine, kitura-net, kitura, kituracontracts, loggerapi
[16160/33147] Fetching kitura-templateengine, kitura-net, kitura, kituracontracts, loggerapi, bluesocket
Fetched https://github.com/IBM-Swift/LoggerAPI.git from cache (1.18s)
Fetched https://github.com/IBM-Swift/BlueSocket.git from cache (1.18s)
[23774/29434] Fetching kitura-templateengine, kitura-net, kitura, kituracontracts
Fetched https://github.com/IBM-Swift/Kitura-net.git from cache (2.46s)
Fetched https://github.com/IBM-Swift/Kitura.git from cache (2.46s)
Fetched https://github.com/IBM-Swift/Kitura-TemplateEngine.git from cache (2.46s)
Computing version for https://github.com/IBM-Swift/BlueCryptor.git
[585/2543] Fetching kituracontracts
error: the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/shial4/sltools.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Updating https://github.com/IBM-Swift/Kitura.git
Updating https://github.com/IBM-Swift/BlueCryptor.git
Updated https://github.com/IBM-Swift/Kitura.git (0.58s)
Updated https://github.com/IBM-Swift/BlueCryptor.git (0.58s)
Computing version for https://github.com/IBM-Swift/BlueCryptor.git
error: the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
BUILD FAILURE 6.0 macosSpm