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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 FlowStack, reference master (97a66e), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 12:50:59 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/johnsusek/flowstack.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/johnsusek/flowstack
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 97a66eb Update README.md
Cloned https://github.com/johnsusek/flowstack.git
Revision (git rev-parse @):
97a66ebe079202316466cabf6578b45d2ec283e8
SUCCESS checkout https://github.com/johnsusek/flowstack.git at master
========================================
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": "flowstack",
      "name": "FlowStack",
      "url": "https://github.com/johnsusek/flowstack.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/flowstack",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/johnsusek/flowstack.git
[1/79] Fetching flowstack
Fetched https://github.com/johnsusek/flowstack.git from cache (0.63s)
Creating working copy for https://github.com/johnsusek/flowstack.git
Working copy of https://github.com/johnsusek/flowstack.git resolved at master (97a66eb)
warning: '.resolve-product-dependencies': dependency 'flowstack' 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/johnsusek/flowstack.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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/4] Emitting module FlowStack
[4/4] Compiling FlowStack FlowStack.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStack/FlowStack.swift:33:31: error: the compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions
31 |   }
32 |
33 |   public var body : some View {
   |                               `- error: the compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions
34 |     // A GeometryReader is required to size items in the scroll view
35 |     GeometryReader { geometry in
BUILD FAILURE 6.0 macosSpm