The Swift Package Index logo.Swift Package Index

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 SLChat, reference master (0bb88b), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 15:38:20 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/shial4/slchat.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/shial4/slchat
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 0bb88b9 Travis xcode9
Cloned https://github.com/shial4/slchat.git
Revision (git rev-parse @):
0bb88b99de08b0a71e6579daeee7c129360ef1cf
SUCCESS checkout https://github.com/shial4/slchat.git at master
Fetching https://github.com/IBM-Swift/BlueCryptor.git
Fetching https://github.com/IBM-Swift/BlueSSLService.git
Fetching https://github.com/IBM-Swift/Kitura-WebSocket
Fetching https://github.com/IBM-Swift/LoggerAPI.git
Fetching https://github.com/IBM-Swift/CCurl.git
Fetching https://github.com/IBM-Swift/CommonCrypto.git
Fetching https://github.com/IBM-Swift/BlueSocket.git
[1/771] Fetching loggerapi
[148/955] Fetching loggerapi, ccurl
[180/987] Fetching loggerapi, ccurl, commoncrypto
[212/2823] Fetching loggerapi, ccurl, commoncrypto, kitura-websocket
[485/5765] Fetching loggerapi, ccurl, commoncrypto, kitura-websocket, bluesocket
[531/7419] Fetching loggerapi, ccurl, commoncrypto, kitura-websocket, bluesocket, bluecryptor
[1061/9496] Fetching loggerapi, ccurl, commoncrypto, kitura-websocket, bluesocket, bluecryptor, bluesslservice
Fetched https://github.com/IBM-Swift/BlueSSLService.git from cache (1.00s)
Fetched https://github.com/IBM-Swift/BlueCryptor.git from cache (1.00s)
Fetched https://github.com/IBM-Swift/Kitura-WebSocket from cache (1.00s)
Computing version for https://github.com/IBM-Swift/Kitura-WebSocket
Fetching https://github.com/IBM-Swift/Kitura-net.git
[2576/3929] Fetching loggerapi, ccurl, commoncrypto, bluesocket
Fetched https://github.com/IBM-Swift/CCurl.git from cache (1.17s)
Fetched https://github.com/IBM-Swift/LoggerAPI.git from cache (1.17s)
Fetched https://github.com/IBM-Swift/BlueSocket.git from cache (1.17s)
Fetched https://github.com/IBM-Swift/CommonCrypto.git from cache (1.17s)
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:             6.1
Building package at path:  $PWD
https://github.com/shial4/slchat.git
https://github.com/shial4/slchat.git
{
  "dependencies" : [
    {
      "identity" : "kitura-websocket",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.9.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/IBM-Swift/Kitura-WebSocket"
    }
  ],
  "manifest_display_name" : "SLChat",
  "name" : "SLChat",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SLChat",
      "targets" : [
        "SLChat"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SLChatTests",
      "module_type" : "SwiftTarget",
      "name" : "SLChatTests",
      "path" : "Tests/SLChatTests",
      "sources" : [
        "SLClientTests.swift",
        "SLConnectionTests.swift",
        "SLMessageTests.swift",
        "SLServiceTests.swift"
      ],
      "target_dependencies" : [
        "SLChat"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SLChat",
      "module_type" : "SwiftTarget",
      "name" : "SLChat",
      "path" : "Sources/SLChat",
      "product_dependencies" : [
        "Kitura-WebSocket"
      ],
      "product_memberships" : [
        "SLChat"
      ],
      "sources" : [
        "SLClient.swift",
        "SLConnection.swift",
        "SLMessage.swift",
        "SLService.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Updating https://github.com/IBM-Swift/Kitura-WebSocket
Updated https://github.com/IBM-Swift/Kitura-WebSocket (0.44s)
Computing version for https://github.com/IBM-Swift/Kitura-WebSocket
error: the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
Updating https://github.com/IBM-Swift/Kitura-WebSocket
Updated https://github.com/IBM-Swift/Kitura-WebSocket (0.40s)
Computing version for https://github.com/IBM-Swift/Kitura-WebSocket
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 6.1 macosSpm