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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 SPIManifest, reference main (df8dfd), with Swift 6.0 for macOS (SPM) on 30 Apr 2025 18:35:08 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SwiftPackageIndex/SPIManifest.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftPackageIndex/SPIManifest
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at df8dfd0 Merge pull request #60 from SwiftPackageIndex/release-is-6.1-again
Cloned https://github.com/SwiftPackageIndex/SPIManifest.git
Revision (git rev-parse @):
df8dfd0295c5ec9840c2987f8adec20381243109
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/SwiftPackageIndex/SPIManifest.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/SwiftPackageIndex/SPIManifest.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
Building for debugging...
[0/9] Write sources
[2/9] Write swift-version-5BDAB9E9C0126B9D.txt
[3/9] Compiling parser.c
[4/9] Compiling api.c
[5/9] Compiling emitter.c
[6/9] Compiling scanner.c
[7/9] Compiling writer.c
[8/9] Compiling reader.c
[10/28] Compiling Yams Tag.swift
[11/28] Compiling Yams YamlAnchorProviding.swift
[12/30] Compiling Yams YamlError.swift
[13/30] Compiling Yams YamlTagProviding.swift
[14/30] Compiling Yams Resolver.swift
[15/30] Compiling Yams String+Yams.swift
[16/30] Compiling Yams Node.swift
[17/30] Compiling Yams Parser.swift
[18/30] Compiling Yams Encoder.swift
[19/30] Compiling Yams Mark.swift
[20/30] Compiling Yams Anchor.swift
[21/30] Compiling Yams Constructor.swift
[22/30] Compiling Yams Node.Alias.swift
[23/30] Compiling Yams Node.Mapping.swift
[24/30] Emitting module Yams
[25/30] Compiling Yams Decoder.swift
[26/30] Compiling Yams Emitter.swift
[27/30] Compiling Yams RedundancyAliasingStrategy.swift
[28/30] Compiling Yams Representer.swift
[29/30] Compiling Yams Node.Scalar.swift
[30/30] Compiling Yams Node.Sequence.swift
[31/37] Compiling SPIManifest Platform.swift
[32/37] Compiling SPIManifest SwiftVersion.swift
[33/37] Compiling SPIManifest ManifestError.swift
[34/37] Compiling SPIManifest Environment.swift
[35/37] Compiling SPIManifest Array+Uniqued.swift
[36/37] Emitting module SPIManifest
[37/37] Compiling SPIManifest Manifest.swift
Build complete! (10.56s)
Fetching https://github.com/jpsim/Yams.git
[1/10445] Fetching yams
Fetched https://github.com/jpsim/Yams.git from cache (1.66s)
Computing version for https://github.com/jpsim/Yams.git
Computed https://github.com/jpsim/Yams.git at 5.3.1 (0.55s)
Creating working copy for https://github.com/jpsim/Yams.git
Working copy of https://github.com/jpsim/Yams.git resolved at 5.3.1
Build complete.
{
  "dependencies" : [
    {
      "identity" : "yams",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/jpsim/Yams.git"
    }
  ],
  "manifest_display_name" : "SPIManifest",
  "name" : "SPIManifest",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "SPIManifest",
      "targets" : [
        "SPIManifest"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SPIManifestTests",
      "module_type" : "SwiftTarget",
      "name" : "SPIManifestTests",
      "path" : "Tests/SPIManifestTests",
      "sources" : [
        "Array+UniquedTests.swift",
        "ManifestTests.swift",
        "RegressionTests.swift",
        "SwiftVersionTests.swift"
      ],
      "target_dependencies" : [
        "SPIManifest"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SPIManifest",
      "module_type" : "SwiftTarget",
      "name" : "SPIManifest",
      "path" : "Sources/SPIManifest",
      "product_dependencies" : [
        "Yams"
      ],
      "product_memberships" : [
        "SPIManifest"
      ],
      "sources" : [
        "Array+Uniqued.swift",
        "Environment.swift",
        "Manifest.swift",
        "ManifestError.swift",
        "Platform.swift",
        "SwiftVersion.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Done.