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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 Linux on 26 Apr 2025 17:16:28 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1

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 /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
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 '/host/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
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/SusanDoggie/brotli.git
https://github.com/SusanDoggie/brotli.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "brotli",
  "name" : "brotli",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "brotli",
      "targets" : [
        "brotli"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "brotli",
      "module_type" : "ClangTarget",
      "name" : "brotli",
      "path" : "dependencies/brotli/c",
      "product_memberships" : [
        "brotli"
      ],
      "sources" : [
        "common/constants.c",
        "common/context.c",
        "common/dictionary.c",
        "common/platform.c",
        "common/shared_dictionary.c",
        "common/transform.c",
        "dec/bit_reader.c",
        "dec/decode.c",
        "dec/huffman.c",
        "dec/state.c",
        "enc/backward_references.c",
        "enc/backward_references_hq.c",
        "enc/bit_cost.c",
        "enc/block_splitter.c",
        "enc/brotli_bit_stream.c",
        "enc/cluster.c",
        "enc/command.c",
        "enc/compound_dictionary.c",
        "enc/compress_fragment.c",
        "enc/compress_fragment_two_pass.c",
        "enc/dictionary_hash.c",
        "enc/encode.c",
        "enc/encoder_dict.c",
        "enc/entropy_encode.c",
        "enc/fast_log.c",
        "enc/histogram.c",
        "enc/literal_cost.c",
        "enc/memory.c",
        "enc/metablock.c",
        "enc/static_dict.c",
        "enc/utf8_util.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/31] Compiling context.c
[1/31] Compiling transform.c
[1/31] Compiling constants.c
[3/31] Compiling platform.c
[4/31] Compiling bit_reader.c
[5/31] Compiling utf8_util.c
[6/31] Compiling shared_dictionary.c
[7/31] Compiling memory.c
[8/31] Compiling literal_cost.c
[9/31] Compiling fast_log.c
[10/31] Compiling entropy_encode.c
[11/31] Compiling decode.c
[12/31] Compiling dictionary.c
[13/31] Compiling dictionary_hash.c
[14/31] Compiling histogram.c
[15/31] Compiling static_dict.c
[15/31] Compiling metablock.c
[17/31] Compiling compound_dictionary.c
[18/31] Compiling encode.c
[19/31] Compiling compress_fragment_two_pass.c
[20/31] Compiling encoder_dict.c
[21/31] Compiling compress_fragment.c
[22/31] Compiling state.c
[23/31] Compiling block_splitter.c
[24/31] Compiling command.c
[25/31] Compiling cluster.c
[26/31] Compiling huffman.c
[27/31] Compiling brotli_bit_stream.c
[28/31] Compiling bit_cost.c
[29/31] Compiling backward_references_hq.c
[30/31] Compiling backward_references.c
Build complete! (3.54s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "brotli",
  "name" : "brotli",
  "path" : "/host/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"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.