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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

Failed to build LLVM, reference main (ff7a88), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 14:25:48 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/llvm-swift/llvmswift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/llvm-swift/llvmswift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at ff7a881 Merge pull request #241 from Snowy1803/master
Cloned https://github.com/llvm-swift/llvmswift.git
Revision (git rev-parse @):
ff7a881eabf97cbd43006223494850a970761533
SUCCESS checkout https://github.com/llvm-swift/llvmswift.git at main
Fetching https://github.com/llvm-swift/FileCheck.git
[1/479] Fetching filecheck
Fetched https://github.com/llvm-swift/FileCheck.git from cache (0.78s)
Computing version for https://github.com/llvm-swift/FileCheck.git
Computed https://github.com/llvm-swift/FileCheck.git at 0.2.6 (0.64s)
Fetching https://github.com/mxcl/Chalk.git
Fetching https://github.com/apple/swift-argument-parser
[1/81] Fetching chalk
[60/12443] Fetching chalk, swift-argument-parser
Fetched https://github.com/mxcl/Chalk.git from cache (1.81s)
Fetched https://github.com/apple/swift-argument-parser from cache (1.81s)
Computing version for https://github.com/mxcl/Chalk.git
Computed https://github.com/mxcl/Chalk.git at 0.5.0 (0.64s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.50s)
Creating working copy for https://github.com/mxcl/Chalk.git
Working copy of https://github.com/mxcl/Chalk.git resolved at 0.5.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.5.0
Creating working copy for https://github.com/llvm-swift/FileCheck.git
Working copy of https://github.com/llvm-swift/FileCheck.git resolved at 0.2.6
========================================
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": "llvmswift",
      "name": "LLVM",
      "url": "https://github.com/llvm-swift/llvmswift.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/llvmswift",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/llvm-swift/llvmswift.git
[1/5050] Fetching llvmswift
Fetched https://github.com/llvm-swift/llvmswift.git from cache (1.43s)
Creating working copy for https://github.com/llvm-swift/llvmswift.git
Working copy of https://github.com/llvm-swift/llvmswift.git resolved at main (ff7a881)
warning: '.resolve-product-dependencies': dependency 'llvmswift' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/llvm-swift/llvmswift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/4] Write sources
/Users/admin/builder/spi-builder-workspace/Sources/llvmshims/src/shim.cpp:1:10: fatal error: 'llvm-c/Core.h' file not found
    1 | #include "llvm-c/Core.h"
      |          ^~~~~~~~~~~~~~~
1 error generated.
[2/4] Compiling shim.cpp
[2/4] Write swift-version--7754E27361AE5C74.txt
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install cllvm using your system-packager:
    brew install llvm
BUILD FAILURE 6.0 macosSpm