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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 SafeCollectionAccess, reference production (a2a2f8), with Swift 6.1 for Linux on 26 Apr 2025 12:55:28 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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/RougeWare/Swift-Safe-Collection-Access.git
Reference: production
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/RougeWare/Swift-Safe-Collection-Access
 * branch            production -> FETCH_HEAD
 * [new branch]      production -> origin/production
HEAD is now at a2a2f87 Merge pull request #20 from RougeWare/feature/License/init
Cloned https://github.com/RougeWare/Swift-Safe-Collection-Access.git
Revision (git rev-parse @):
a2a2f8773f5e85804be785177fa3bf1abeb37dea
SUCCESS checkout https://github.com/RougeWare/Swift-Safe-Collection-Access.git at production
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/RougeWare/Swift-Safe-Collection-Access.git
https://github.com/RougeWare/Swift-Safe-Collection-Access.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-range-tools",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.1",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/RougeWare/Swift-Range-Tools.git"
    }
  ],
  "manifest_display_name" : "SafeCollectionAccess",
  "name" : "SafeCollectionAccess",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SafeCollectionAccess",
      "targets" : [
        "SafeCollectionAccess"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SafeCollectionAccessTests",
      "module_type" : "SwiftTarget",
      "name" : "SafeCollectionAccessTests",
      "path" : "Tests/SafeCollectionAccessTests",
      "sources" : [
        "RangesOrNilTests.swift",
        "SafeCollectionAccessTests.swift",
        "Test Tools.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SafeCollectionAccess"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SafeCollectionAccess",
      "module_type" : "SwiftTarget",
      "name" : "SafeCollectionAccess",
      "path" : "Sources/SafeCollectionAccess",
      "product_dependencies" : [
        "RangeTools"
      ],
      "product_memberships" : [
        "SafeCollectionAccess"
      ],
      "sources" : [
        "Ranges or nil.swift",
        "Safe Collection Access.swift",
        "SafeRangeExpression.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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
Fetching https://github.com/RougeWare/Swift-Range-Tools.git
[1/70] Fetching swift-range-tools
Fetched https://github.com/RougeWare/Swift-Range-Tools.git from cache (0.22s)
Computing version for https://github.com/RougeWare/Swift-Range-Tools.git
Computed https://github.com/RougeWare/Swift-Range-Tools.git at 1.2.1 (0.80s)
Creating working copy for https://github.com/RougeWare/Swift-Range-Tools.git
Working copy of https://github.com/RougeWare/Swift-Range-Tools.git resolved at 1.2.1
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/6] Compiling RangeTools RangeProtocol.swift
[5/6] Emitting module RangeTools
[6/6] Compiling RangeTools Default conformances.swift
[8/11] Compiling SafeCollectionAccess Ranges or nil.swift
[9/11] Emitting module SafeCollectionAccess
[10/11] Compiling SafeCollectionAccess Safe Collection Access.swift
[11/11] Compiling SafeCollectionAccess SafeRangeExpression.swift
Build complete! (8.48s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-range-tools",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.1",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/RougeWare/Swift-Range-Tools.git"
    }
  ],
  "manifest_display_name" : "SafeCollectionAccess",
  "name" : "SafeCollectionAccess",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SafeCollectionAccess",
      "targets" : [
        "SafeCollectionAccess"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SafeCollectionAccessTests",
      "module_type" : "SwiftTarget",
      "name" : "SafeCollectionAccessTests",
      "path" : "Tests/SafeCollectionAccessTests",
      "sources" : [
        "RangesOrNilTests.swift",
        "SafeCollectionAccessTests.swift",
        "Test Tools.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SafeCollectionAccess"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SafeCollectionAccess",
      "module_type" : "SwiftTarget",
      "name" : "SafeCollectionAccess",
      "path" : "Sources/SafeCollectionAccess",
      "product_dependencies" : [
        "RangeTools"
      ],
      "product_memberships" : [
        "SafeCollectionAccess"
      ],
      "sources" : [
        "Ranges or nil.swift",
        "Safe Collection Access.swift",
        "SafeRangeExpression.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
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.