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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 brotli, reference main (f5821f), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 17:20:59 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 -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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SusanDoggie/brotli.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SusanDoggie/brotli
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at f5821f1 update
Submodule path 'dependencies/brotli': checked out 'f4153a09f87cbb9c826d8fc12c74642bb2d879ea'
Submodule 'dependencies/brotli' (https://github.com/google/brotli.git) registered for path 'dependencies/brotli'
Cloning into '/Users/admin/builder/spi-builder-workspace/dependencies/brotli'...
From https://github.com/google/brotli
 * branch            f4153a09f87cbb9c826d8fc12c74642bb2d879ea -> FETCH_HEAD
Cloned https://github.com/SusanDoggie/brotli.git
Revision (git rev-parse @):
f5821f1905a535d37a36719f85af20f96152a40a
SUCCESS checkout https://github.com/SusanDoggie/brotli.git at main
========================================
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": "brotli",
      "name": "brotli",
      "url": "https://github.com/SusanDoggie/brotli.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/brotli",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/SusanDoggie/brotli.git
[1/70] Fetching brotli
Fetched https://github.com/SusanDoggie/brotli.git from cache (0.58s)
Creating working copy for https://github.com/SusanDoggie/brotli.git
Working copy of https://github.com/SusanDoggie/brotli.git resolved at main (f5821f1)
warning: '.resolve-product-dependencies': dependency 'brotli' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/SusanDoggie/brotli.git
https://github.com/SusanDoggie/brotli.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "brotli",
  "name" : "brotli",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "brotli",
      "targets" : [
        "brotli"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "brotli",
      "module_type" : "ClangTarget",
      "name" : "brotli",
      "path" : "dependencies/brotli/c",
      "product_memberships" : [
        "brotli"
      ],
      "sources" : [
        "common/constants.c",
        "common/context.c",
        "common/dictionary.c",
        "common/platform.c",
        "common/shared_dictionary.c",
        "common/transform.c",
        "dec/bit_reader.c",
        "dec/decode.c",
        "dec/huffman.c",
        "dec/state.c",
        "enc/backward_references.c",
        "enc/backward_references_hq.c",
        "enc/bit_cost.c",
        "enc/block_splitter.c",
        "enc/brotli_bit_stream.c",
        "enc/cluster.c",
        "enc/command.c",
        "enc/compound_dictionary.c",
        "enc/compress_fragment.c",
        "enc/compress_fragment_two_pass.c",
        "enc/dictionary_hash.c",
        "enc/encode.c",
        "enc/encoder_dict.c",
        "enc/entropy_encode.c",
        "enc/fast_log.c",
        "enc/histogram.c",
        "enc/literal_cost.c",
        "enc/memory.c",
        "enc/metablock.c",
        "enc/static_dict.c",
        "enc/utf8_util.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
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
Building for debugging...
[0/31] Compiling transform.c
[1/31] Compiling platform.c
[2/31] Compiling bit_reader.c
[3/31] Compiling literal_cost.c
[4/31] Compiling fast_log.c
[5/31] Compiling entropy_encode.c
[6/31] Compiling shared_dictionary.c
[7/31] Compiling histogram.c
[8/31] Compiling utf8_util.c
[9/31] Compiling dictionary_hash.c
[10/31] Compiling metablock.c
[11/31] Compiling static_dict.c
[12/31] Compiling encoder_dict.c
[13/31] Compiling compound_dictionary.c
[14/31] Compiling command.c
[15/31] Compiling cluster.c
[16/31] Compiling compress_fragment.c
[16/31] Compiling memory.c
[18/31] Compiling encode.c
[19/31] Compiling compress_fragment_two_pass.c
[20/31] Compiling brotli_bit_stream.c
[21/31] Compiling decode.c
[22/31] Compiling context.c
[23/31] Compiling state.c
[24/31] Compiling huffman.c
[25/31] Compiling constants.c
[26/31] Compiling block_splitter.c
[27/31] Compiling bit_cost.c
[28/31] Compiling dictionary.c
[29/31] Compiling backward_references_hq.c
[30/31] Compiling backward_references.c
Build complete! (1.36s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "brotli",
  "name" : "brotli",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "brotli",
      "targets" : [
        "brotli"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "brotli",
      "module_type" : "ClangTarget",
      "name" : "brotli",
      "path" : "dependencies/brotli/c",
      "product_memberships" : [
        "brotli"
      ],
      "sources" : [
        "common/constants.c",
        "common/context.c",
        "common/dictionary.c",
        "common/platform.c",
        "common/shared_dictionary.c",
        "common/transform.c",
        "dec/bit_reader.c",
        "dec/decode.c",
        "dec/huffman.c",
        "dec/state.c",
        "enc/backward_references.c",
        "enc/backward_references_hq.c",
        "enc/bit_cost.c",
        "enc/block_splitter.c",
        "enc/brotli_bit_stream.c",
        "enc/cluster.c",
        "enc/command.c",
        "enc/compound_dictionary.c",
        "enc/compress_fragment.c",
        "enc/compress_fragment_two_pass.c",
        "enc/dictionary_hash.c",
        "enc/encode.c",
        "enc/encoder_dict.c",
        "enc/entropy_encode.c",
        "enc/fast_log.c",
        "enc/histogram.c",
        "enc/literal_cost.c",
        "enc/memory.c",
        "enc/metablock.c",
        "enc/static_dict.c",
        "enc/utf8_util.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.