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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 CLMDB, reference main (1ad9a2), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 17:52:13 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: 4.61.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-lmdb.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swift-lmdb
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 1ad9a2d Merge pull request #14 from ahoppen/disable-warning
Cloned https://github.com/swiftlang/swift-lmdb.git
Revision (git rev-parse @):
1ad9a2d80b6fcde498c2242f509bd1be7d667ff8
SUCCESS checkout https://github.com/swiftlang/swift-lmdb.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": "swift-lmdb",
      "name": "CLMDB",
      "url": "https://github.com/swiftlang/swift-lmdb.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-lmdb",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/swiftlang/swift-lmdb.git
[1/10190] Fetching swift-lmdb
Fetched https://github.com/swiftlang/swift-lmdb.git from cache (1.35s)
Creating working copy for https://github.com/swiftlang/swift-lmdb.git
Working copy of https://github.com/swiftlang/swift-lmdb.git resolved at main (1ad9a2d)
warning: '.resolve-product-dependencies': dependency 'swift-lmdb' 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/swiftlang/swift-lmdb.git
https://github.com/swiftlang/swift-lmdb.git
{
  "c_language_standard" : "c11",
  "dependencies" : [
  ],
  "manifest_display_name" : "CLMDB",
  "name" : "CLMDB",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CLMDB",
      "targets" : [
        "CLMDB"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CLMDB",
      "module_type" : "ClangTarget",
      "name" : "CLMDB",
      "path" : "Sources/CLMDB",
      "product_memberships" : [
        "CLMDB"
      ],
      "sources" : [
        "mdb.c",
        "midl.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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...
[0/2] Compiling CLMDB midl.c
[1/2] Compiling CLMDB mdb.c
Build complete! (0.92s)
Build complete.
{
  "c_language_standard" : "c11",
  "dependencies" : [
  ],
  "manifest_display_name" : "CLMDB",
  "name" : "CLMDB",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CLMDB",
      "targets" : [
        "CLMDB"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CLMDB",
      "module_type" : "ClangTarget",
      "name" : "CLMDB",
      "path" : "Sources/CLMDB",
      "product_memberships" : [
        "CLMDB"
      ],
      "sources" : [
        "mdb.c",
        "midl.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.