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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 libxlsxwriter, reference main (21c11a), with Swift 6.0 for Linux on 30 Mar 2025 07:38:45 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jmcnamara/libxlsxwriter.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/jmcnamara/libxlsxwriter
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 21c11a2 Prep for release 1.2.2.
Cloned https://github.com/jmcnamara/libxlsxwriter.git
Revision (git rev-parse @):
21c11a2052162b24c121b766e4373b081ea07ff6
SUCCESS checkout https://github.com/jmcnamara/libxlsxwriter.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/jmcnamara/libxlsxwriter.git
https://github.com/jmcnamara/libxlsxwriter.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "libxlsxwriter",
  "name" : "libxlsxwriter",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "libxlsxwriter",
      "targets" : [
        "libxlsxwriter"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "libxlsxwritertests",
      "module_type" : "SwiftTarget",
      "name" : "libxlsxwritertests",
      "path" : ".",
      "sources" : [
        "test/swift/test.swift"
      ],
      "target_dependencies" : [
        "libxlsxwriter"
      ],
      "type" : "test"
    },
    {
      "c99name" : "libxlsxwriter",
      "module_type" : "ClangTarget",
      "name" : "libxlsxwriter",
      "path" : ".",
      "product_memberships" : [
        "libxlsxwriter"
      ],
      "sources" : [
        "src/app.c",
        "src/chart.c",
        "src/chartsheet.c",
        "src/comment.c",
        "src/content_types.c",
        "src/core.c",
        "src/custom.c",
        "src/drawing.c",
        "src/format.c",
        "src/hash_table.c",
        "src/metadata.c",
        "src/packager.c",
        "src/relationships.c",
        "src/rich_value.c",
        "src/rich_value_rel.c",
        "src/rich_value_structure.c",
        "src/rich_value_types.c",
        "src/shared_strings.c",
        "src/styles.c",
        "src/table.c",
        "src/theme.c",
        "src/utility.c",
        "src/vml.c",
        "src/workbook.c",
        "src/worksheet.c",
        "src/xmlwriter.c",
        "third_party/md5/md5.c",
        "third_party/minizip/ioapi.c",
        "third_party/minizip/zip.c",
        "third_party/tmpfileplus/tmpfileplus.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-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-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Building for debugging...
[0/30] Compiling custom.c
[1/30] Compiling tmpfileplus.c
[2/30] Compiling content_types.c
[3/30] Compiling core.c
[4/30] Compiling chartsheet.c
[5/30] Compiling comment.c
[6/30] Compiling drawing.c
[7/30] Compiling md5.c
[8/30] Compiling ioapi.c
[9/30] Compiling xmlwriter.c
[10/30] Compiling theme.c
[11/30] Compiling zip.c
[12/30] Compiling utility.c
[13/30] Compiling table.c
[14/30] Compiling vml.c
[15/30] Compiling shared_strings.c
[16/30] Compiling rich_value_types.c
[17/30] Compiling rich_value_structure.c
[18/30] Compiling rich_value_rel.c
[19/30] Compiling styles.c
[20/30] Compiling rich_value.c
[20/30] Compiling relationships.c
[22/30] Compiling hash_table.c
[23/30] Compiling metadata.c
[24/30] Compiling workbook.c
[25/30] Compiling app.c
[26/30] Compiling format.c
[27/30] Compiling packager.c
[28/30] Compiling chart.c
[29/30] Compiling worksheet.c
Build complete! (1.49s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "libxlsxwriter",
  "name" : "libxlsxwriter",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "libxlsxwriter",
      "targets" : [
        "libxlsxwriter"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "libxlsxwritertests",
      "module_type" : "SwiftTarget",
      "name" : "libxlsxwritertests",
      "path" : ".",
      "sources" : [
        "test/swift/test.swift"
      ],
      "target_dependencies" : [
        "libxlsxwriter"
      ],
      "type" : "test"
    },
    {
      "c99name" : "libxlsxwriter",
      "module_type" : "ClangTarget",
      "name" : "libxlsxwriter",
      "path" : ".",
      "product_memberships" : [
        "libxlsxwriter"
      ],
      "sources" : [
        "src/app.c",
        "src/chart.c",
        "src/chartsheet.c",
        "src/comment.c",
        "src/content_types.c",
        "src/core.c",
        "src/custom.c",
        "src/drawing.c",
        "src/format.c",
        "src/hash_table.c",
        "src/metadata.c",
        "src/packager.c",
        "src/relationships.c",
        "src/rich_value.c",
        "src/rich_value_rel.c",
        "src/rich_value_structure.c",
        "src/rich_value_types.c",
        "src/shared_strings.c",
        "src/styles.c",
        "src/table.c",
        "src/theme.c",
        "src/utility.c",
        "src/vml.c",
        "src/workbook.c",
        "src/worksheet.c",
        "src/xmlwriter.c",
        "third_party/md5/md5.c",
        "third_party/minizip/ioapi.c",
        "third_party/minizip/zip.c",
        "third_party/tmpfileplus/tmpfileplus.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Done.