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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

Successful build of CPUInfo, reference 0.4.0 (3ee364), with Swift 6.0 for macOS (SPM) on 24 Jan 2025 09:06:42 UTC.

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/p-x9/swift-cpu-info.git
Reference: 0.4.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/p-x9/swift-cpu-info
 * tag               0.4.0      -> FETCH_HEAD
HEAD is now at 3ee3646 Merge pull request #4 from p-x9/feature/arm-feature-ID_AA64SMFR0_EL1
Cloned https://github.com/p-x9/swift-cpu-info.git
Revision (git rev-parse @):
3ee36460b50ae0e1315d182b5a11f9591f4e236c
SUCCESS checkout https://github.com/p-x9/swift-cpu-info.git at 0.4.0
Fetching https://github.com/p-x9/swift-sysctl.git
[1/513] Fetching swift-sysctl
Fetched https://github.com/p-x9/swift-sysctl.git from cache (0.87s)
Computing version for https://github.com/p-x9/swift-sysctl.git
Computed https://github.com/p-x9/swift-sysctl.git at 0.8.0 (0.42s)
Creating working copy for https://github.com/p-x9/swift-sysctl.git
Working copy of https://github.com/p-x9/swift-sysctl.git resolved at 0.8.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swift-cpu-info",
      "name": "CPUInfo",
      "url": "https://github.com/p-x9/swift-cpu-info.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-cpu-info",
      "dependencies": [
        {
          "identity": "swift-sysctl",
          "name": "SwiftSysctl",
          "url": "https://github.com/p-x9/swift-sysctl.git",
          "version": "0.8.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-sysctl",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/p-x9/swift-cpu-info.git
[1/206] Fetching swift-cpu-info
Fetched https://github.com/p-x9/swift-cpu-info.git from cache (0.69s)
Fetching https://github.com/p-x9/swift-sysctl.git from cache
Fetched https://github.com/p-x9/swift-sysctl.git from cache (0.45s)
Computing version for https://github.com/p-x9/swift-sysctl.git
Computed https://github.com/p-x9/swift-sysctl.git at 0.8.0 (0.02s)
Creating working copy for https://github.com/p-x9/swift-cpu-info.git
Working copy of https://github.com/p-x9/swift-cpu-info.git resolved at 0.4.0 (3ee3646)
Creating working copy for https://github.com/p-x9/swift-sysctl.git
Working copy of https://github.com/p-x9/swift-sysctl.git resolved at 0.8.0
warning: '.resolve-product-dependencies': dependency 'swift-cpu-info' is not used by any target
Found 1 product dependencies
  - SwiftSysctl
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/p-x9/swift-cpu-info.git
https://github.com/p-x9/swift-cpu-info.git
{
  "dependencies" : [
    {
      "identity" : "swift-sysctl",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.8.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/p-x9/swift-sysctl.git"
    }
  ],
  "manifest_display_name" : "CPUInfo",
  "name" : "CPUInfo",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CPUInfo",
      "targets" : [
        "CPUInfo"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CPUInfoTests",
      "module_type" : "SwiftTarget",
      "name" : "CPUInfoTests",
      "path" : "Tests/CPUInfoTests",
      "sources" : [
        "CPUInfoTests.swift"
      ],
      "target_dependencies" : [
        "CPUInfo"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CPUInfoC",
      "module_type" : "ClangTarget",
      "name" : "CPUInfoC",
      "path" : "Sources/CPUInfoC",
      "product_memberships" : [
        "CPUInfo"
      ],
      "sources" : [
        "dummy.c"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CPUInfo",
      "module_type" : "SwiftTarget",
      "name" : "CPUInfo",
      "path" : "Sources/CPUInfo",
      "product_dependencies" : [
        "SwiftSysctl"
      ],
      "product_memberships" : [
        "CPUInfo"
      ],
      "sources" : [
        "CPUInfo+print.swift",
        "CPUInfo.swift",
        "Model/CPUFamily.swift",
        "Model/CPUSubFamily.swift",
        "Model/CPUSubType.swift",
        "Model/CPUThreadType.swift",
        "Model/CPUType.swift",
        "Model/Core.swift",
        "Protocol/CoreNodeProtocol.swift",
        "arm64/CPUInfo+features.swift"
      ],
      "target_dependencies" : [
        "CPUInfoC"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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
Building for debugging...
[0/4] Write sources
[2/4] Write swift-version-5BDAB9E9C0126B9D.txt
[3/4] Compiling CPUInfoC dummy.c
[5/67] Emitting module SwiftSysctl
[6/73] Compiling SwiftSysctl Nodes+MachDep.x86_64.swift
[7/73] Compiling SwiftSysctl Nodes+Net.x86_64.swift
[8/73] Compiling SwiftSysctl Nodes+Security.x86_64.swift
[9/73] Compiling SwiftSysctl Nodes+Sysctl.x86_64.swift
[10/73] Compiling SwiftSysctl Nodes+VFS.x86_64.swift
[11/73] Compiling SwiftSysctl Nodes+VM.x86_64.swift
[12/73] Compiling SwiftSysctl Nodes+Sysctl.swift
[13/73] Compiling SwiftSysctl NodeProtocol.swift
[14/73] Compiling SwiftSysctl SwiftSysctl.swift
[15/73] Compiling SwiftSysctl SysctlError.swift
[16/73] Compiling SwiftSysctl TopNodes.swift
[17/73] Compiling SwiftSysctl Field.swift
[18/73] Compiling SwiftSysctl Node.swift
[19/73] Compiling SwiftSysctl OID+VM.arm64.swift
[20/73] Compiling SwiftSysctl OID+Debug.x86_64.swift
[21/73] Compiling SwiftSysctl OID+HW.x86_64.swift
[22/73] Compiling SwiftSysctl OID+Kern.x86_64.swift
[23/73] Compiling SwiftSysctl OID+MachDep.x86_64.swift
[24/73] Compiling SwiftSysctl OID+Net.x86_64.swift
[25/73] Compiling SwiftSysctl OID+Security.x86_64.swift
[26/73] Compiling SwiftSysctl OID+HW.swift
[27/73] Compiling SwiftSysctl OID+Kern.swift
[28/73] Compiling SwiftSysctl OID+MachDep.swift
[29/73] Compiling SwiftSysctl OID+Net.swift
[30/73] Compiling SwiftSysctl OID+VFS.swift
[31/73] Compiling SwiftSysctl OID+VM.swift
[32/73] Compiling SwiftSysctl OID+Debug.arm64.swift
[33/73] Compiling SwiftSysctl Nodes.swift
[34/73] Compiling SwiftSysctl CtlKind.swift
[35/73] Compiling SwiftSysctl CtlType.swift
[36/73] Compiling SwiftSysctl OID+Sysctl.swift
[37/73] Compiling SwiftSysctl OID+TopLevel.swift
[38/73] Compiling SwiftSysctl OID.swift
[39/73] Compiling SwiftSysctl OID+Debug.swift
[40/73] Compiling SwiftSysctl Nodes+Security.arm64.swift
[41/73] Compiling SwiftSysctl Nodes+Sysctl.arm64.swift
[42/73] Compiling SwiftSysctl Nodes+VFS.arm64.swift
[43/73] Compiling SwiftSysctl Nodes+VM.arm64.swift
[44/73] Compiling SwiftSysctl Nodes+Debug.x86_64.swift
[45/73] Compiling SwiftSysctl Nodes+HW.x86_64.swift
[46/73] Compiling SwiftSysctl Nodes+Kern.x86_64.swift
[47/73] Compiling SwiftSysctl Nodes+VFS.swift
[48/73] Compiling SwiftSysctl Nodes+VM.swift
[49/73] Compiling SwiftSysctl Nodes+Debug.arm64.swift
[50/73] Compiling SwiftSysctl Nodes+HW.arm64.swift
[51/73] Compiling SwiftSysctl Nodes+Kern.arm64.swift
[52/73] Compiling SwiftSysctl Nodes+MachDep.arm64.swift
[53/73] Compiling SwiftSysctl Nodes+Net.arm64.swift
[54/73] Compiling SwiftSysctl Sysctl+.swift
[55/73] Compiling SwiftSysctl Nodes+Debug.swift
[56/73] Compiling SwiftSysctl Nodes+HW.swift
[57/73] Compiling SwiftSysctl Nodes+Kern.swift
[58/73] Compiling SwiftSysctl Nodes+MachDep.swift
[59/73] Compiling SwiftSysctl Nodes+Net.swift
[60/73] Compiling SwiftSysctl Nodes+Security.swift
[61/73] Compiling SwiftSysctl OID+Sysctl.x86_64.swift
[62/73] Compiling SwiftSysctl OID+VFS.x86_64.swift
[63/73] Compiling SwiftSysctl OID+VM.x86_64.swift
[64/73] Compiling SwiftSysctl BitFlags.swift
[65/73] Compiling SwiftSysctl FieldProtocol.swift
[66/73] Compiling SwiftSysctl NodeCollection.swift
[67/73] Compiling SwiftSysctl OID+HW.arm64.swift
[68/73] Compiling SwiftSysctl OID+Kern.arm64.swift
[69/73] Compiling SwiftSysctl OID+MachDep.arm64.swift
[70/73] Compiling SwiftSysctl OID+Net.arm64.swift
[71/73] Compiling SwiftSysctl OID+Security.arm64.swift
[72/73] Compiling SwiftSysctl OID+Sysctl.arm64.swift
[73/73] Compiling SwiftSysctl OID+VFS.arm64.swift
[74/83] Compiling CPUInfo CoreNodeProtocol.swift
[75/84] Compiling CPUInfo CPUThreadType.swift
[76/84] Compiling CPUInfo Core.swift
[77/84] Compiling CPUInfo CPUType.swift
[78/84] Compiling CPUInfo CPUInfo+features.swift
[79/84] Compiling CPUInfo CPUFamily.swift
[80/84] Compiling CPUInfo CPUInfo+print.swift
/Users/admin/builder/spi-builder-workspace/Sources/CPUInfo/CPUInfo+print.swift:52:24: warning: static property 'formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 50 |
 51 | extension CInt {
 52 |     private static var formatter: ByteCountFormatter = {
    |                        |- warning: static property 'formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'formatter' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'formatter' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 53 |         let formatter = ByteCountFormatter()
 54 |         formatter.countStyle = .memory
[81/84] Compiling CPUInfo CPUSubFamily.swift
[82/84] Compiling CPUInfo CPUInfo.swift
[83/84] Compiling CPUInfo CPUSubType.swift
[84/84] Emitting module CPUInfo
/Users/admin/builder/spi-builder-workspace/Sources/CPUInfo/CPUInfo+print.swift:52:24: warning: static property 'formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 50 |
 51 | extension CInt {
 52 |     private static var formatter: ByteCountFormatter = {
    |                        |- warning: static property 'formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'formatter' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'formatter' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 53 |         let formatter = ByteCountFormatter()
 54 |         formatter.countStyle = .memory
Build complete! (18.15s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-sysctl",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.8.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/p-x9/swift-sysctl.git"
    }
  ],
  "manifest_display_name" : "CPUInfo",
  "name" : "CPUInfo",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CPUInfo",
      "targets" : [
        "CPUInfo"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CPUInfoTests",
      "module_type" : "SwiftTarget",
      "name" : "CPUInfoTests",
      "path" : "Tests/CPUInfoTests",
      "sources" : [
        "CPUInfoTests.swift"
      ],
      "target_dependencies" : [
        "CPUInfo"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CPUInfoC",
      "module_type" : "ClangTarget",
      "name" : "CPUInfoC",
      "path" : "Sources/CPUInfoC",
      "product_memberships" : [
        "CPUInfo"
      ],
      "sources" : [
        "dummy.c"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CPUInfo",
      "module_type" : "SwiftTarget",
      "name" : "CPUInfo",
      "path" : "Sources/CPUInfo",
      "product_dependencies" : [
        "SwiftSysctl"
      ],
      "product_memberships" : [
        "CPUInfo"
      ],
      "sources" : [
        "CPUInfo+print.swift",
        "CPUInfo.swift",
        "Model/CPUFamily.swift",
        "Model/CPUSubFamily.swift",
        "Model/CPUSubType.swift",
        "Model/CPUThreadType.swift",
        "Model/CPUType.swift",
        "Model/Core.swift",
        "Protocol/CoreNodeProtocol.swift",
        "arm64/CPUInfo+features.swift"
      ],
      "target_dependencies" : [
        "CPUInfoC"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.