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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 AsyncSequenceReader, reference 0.3.1 (542db2), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 15:16:08 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mochidev/AsyncSequenceReader.git
Reference: 0.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mochidev/AsyncSequenceReader
 * tag               0.3.1      -> FETCH_HEAD
HEAD is now at 542db2c Updated readme suggested version
Cloned https://github.com/mochidev/AsyncSequenceReader.git
Revision (git rev-parse @):
542db2cabb0b34f3c8035d58b06510968bca4cf9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/mochidev/AsyncSequenceReader.git at 0.3.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mochidev/AsyncSequenceReader.git
https://github.com/mochidev/AsyncSequenceReader.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncSequenceReader",
  "name" : "AsyncSequenceReader",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncSequenceReader",
      "targets" : [
        "AsyncSequenceReader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncSequenceReaderTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReaderTests",
      "path" : "Tests/AsyncSequenceReaderTests",
      "sources" : [
        "AsyncBufferedIteratorTests.swift",
        "AsyncIteratorMapSequenceTests.swift",
        "AsyncReadUpToCountSequenceTests.swift",
        "AsyncReadUpToElementsSequenceTests.swift",
        "AsyncSequenceReaderTests.swift",
        "TestSequence.swift"
      ],
      "target_dependencies" : [
        "AsyncSequenceReader"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncSequenceReader",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReader",
      "path" : "Sources/AsyncSequenceReader",
      "product_memberships" : [
        "AsyncSequenceReader"
      ],
      "sources" : [
        "AnyReadableSequence.swift",
        "AsyncBufferedIterator.swift",
        "AsyncIteratorMapSequence.swift",
        "AsyncReadSequence.swift",
        "AsyncReadUpToCountSequence.swift",
        "AsyncReadUpToElementsSequence.swift",
        "AsyncSequenceReader.swift",
        "AsyncSequenceReaderError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/11] Compiling AsyncSequenceReader AsyncSequenceReader.swift
[4/11] Compiling AsyncSequenceReader AsyncReadSequence.swift
[5/11] Compiling AsyncSequenceReader AsyncSequenceReaderError.swift
[6/11] Compiling AsyncSequenceReader AsyncBufferedIterator.swift
[7/11] Compiling AsyncSequenceReader AnyReadableSequence.swift
[8/11] Compiling AsyncSequenceReader AsyncReadUpToCountSequence.swift
[9/11] Compiling AsyncSequenceReader AsyncIteratorMapSequence.swift
[10/11] Emitting module AsyncSequenceReader
[11/11] Compiling AsyncSequenceReader AsyncReadUpToElementsSequence.swift
Build complete! (1.09s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncSequenceReader",
  "name" : "AsyncSequenceReader",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncSequenceReader",
      "targets" : [
        "AsyncSequenceReader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncSequenceReaderTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReaderTests",
      "path" : "Tests/AsyncSequenceReaderTests",
      "sources" : [
        "AsyncBufferedIteratorTests.swift",
        "AsyncIteratorMapSequenceTests.swift",
        "AsyncReadUpToCountSequenceTests.swift",
        "AsyncReadUpToElementsSequenceTests.swift",
        "AsyncSequenceReaderTests.swift",
        "TestSequence.swift"
      ],
      "target_dependencies" : [
        "AsyncSequenceReader"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncSequenceReader",
      "module_type" : "SwiftTarget",
      "name" : "AsyncSequenceReader",
      "path" : "Sources/AsyncSequenceReader",
      "product_memberships" : [
        "AsyncSequenceReader"
      ],
      "sources" : [
        "AnyReadableSequence.swift",
        "AsyncBufferedIterator.swift",
        "AsyncIteratorMapSequence.swift",
        "AsyncReadSequence.swift",
        "AsyncReadUpToCountSequence.swift",
        "AsyncReadUpToElementsSequence.swift",
        "AsyncSequenceReader.swift",
        "AsyncSequenceReaderError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.