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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 Nanoseconds, reference main (aec370), with Swift 6.1 for Linux on 28 Apr 2025 21:51:55 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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/dominicegginton/Nanoseconds.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/dominicegginton/Nanoseconds
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at aec370b chore: update ci to allow for workflow disptach
Cloned https://github.com/dominicegginton/Nanoseconds.git
Revision (git rev-parse @):
aec370bb5f914df415b1b0894814abe91ae3825a
SUCCESS checkout https://github.com/dominicegginton/Nanoseconds.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/dominicegginton/Nanoseconds.git
https://github.com/dominicegginton/Nanoseconds.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Nanoseconds",
  "name" : "Nanoseconds",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Nanoseconds",
      "targets" : [
        "Nanoseconds"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Example",
      "targets" : [
        "Example"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NanosecondsTests",
      "module_type" : "SwiftTarget",
      "name" : "NanosecondsTests",
      "path" : "Tests/NanosecondsTests",
      "sources" : [
        "NowTests.swift",
        "TimeIntervalTests.swift"
      ],
      "target_dependencies" : [
        "Nanoseconds"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Nanoseconds",
      "module_type" : "SwiftTarget",
      "name" : "Nanoseconds",
      "path" : "Sources/Nanoseconds",
      "product_memberships" : [
        "Nanoseconds",
        "Example"
      ],
      "sources" : [
        "Now.swift",
        "TimeInterval.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Example",
      "module_type" : "SwiftTarget",
      "name" : "Example",
      "path" : "Sources/Example",
      "product_memberships" : [
        "Example"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Nanoseconds"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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...
[0/7] Write sources
[2/7] Write swift-version-24593BA9C3E375BF.txt
[4/10] Compiling Nanoseconds TimeInterval.swift
[5/10] Emitting module Nanoseconds
[6/10] Compiling Nanoseconds Now.swift
[7/11] Wrapping AST for Nanoseconds for debugging
[9/13] Compiling Example main.swift
[10/13] Emitting module Example
[11/14] Wrapping AST for Example for debugging
[12/14] Write Objects.LinkFileList
[13/14] Linking Example
Build complete! (7.94s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Nanoseconds",
  "name" : "Nanoseconds",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Nanoseconds",
      "targets" : [
        "Nanoseconds"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Example",
      "targets" : [
        "Example"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "NanosecondsTests",
      "module_type" : "SwiftTarget",
      "name" : "NanosecondsTests",
      "path" : "Tests/NanosecondsTests",
      "sources" : [
        "NowTests.swift",
        "TimeIntervalTests.swift"
      ],
      "target_dependencies" : [
        "Nanoseconds"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Nanoseconds",
      "module_type" : "SwiftTarget",
      "name" : "Nanoseconds",
      "path" : "Sources/Nanoseconds",
      "product_memberships" : [
        "Nanoseconds",
        "Example"
      ],
      "sources" : [
        "Now.swift",
        "TimeInterval.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Example",
      "module_type" : "SwiftTarget",
      "name" : "Example",
      "path" : "Sources/Example",
      "product_memberships" : [
        "Example"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Nanoseconds"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
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.