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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 RxSwiftForms, reference 0.9.8 (51a7f6), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 10:15:59 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hmlongco/RxSwiftForms.git
Reference: 0.9.8
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/hmlongco/RxSwiftForms
 * tag               0.9.8      -> FETCH_HEAD
HEAD is now at 51a7f64 Update podspec to 0.9.8
Submodule path 'RxSwift': checked out 'e5093a1273bd106262a8fe0e6a614dba9a293bc3'
Submodule 'RxSwift' (https://github.com/ReactiveX/RxSwift.git) registered for path 'RxSwift'
Cloning into '/Users/admin/builder/spi-builder-workspace/RxSwift'...
Cloned https://github.com/hmlongco/RxSwiftForms.git
Revision (git rev-parse @):
51a7f647f025e32f202861ffdb6c79d4309748cb
SUCCESS checkout https://github.com/hmlongco/RxSwiftForms.git at 0.9.8
Fetching https://github.com/ReactiveX/RxSwift.git
[1/52676] Fetching rxswift
Fetched https://github.com/ReactiveX/RxSwift.git from cache (4.12s)
Computing version for https://github.com/ReactiveX/RxSwift.git
warning: 'rxswift': /Package.swift:8:16: warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
 6 |
 7 | func filterNil<T>(_ array: [T?]) -> [T] {
 8 |   return array.flatMap { $0 }
   |                |- warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
   |                `- note: use 'compactMap(_:)' instead
 9 | }
10 |
Computed https://github.com/ReactiveX/RxSwift.git at 4.0.0 (4.77s)
Creating working copy for https://github.com/ReactiveX/RxSwift.git
Working copy of https://github.com/ReactiveX/RxSwift.git resolved at 4.0.0
warning: 'rxswift': /Users/admin/builder/spi-builder-workspace/.build/checkouts/RxSwift/Package.swift:8:16: warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
 6 |
 7 | func filterNil<T>(_ array: [T?]) -> [T] {
 8 |   return array.flatMap { $0 }
   |                |- warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
   |                `- note: use 'compactMap(_:)' instead
 9 | }
10 |
========================================
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": "rxswiftforms",
      "name": "RxSwiftForms",
      "url": "https://github.com/hmlongco/RxSwiftForms.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/RxSwiftForms",
      "dependencies": [
        {
          "identity": "rxswift",
          "name": "RxSwift",
          "url": "https://github.com/ReactiveX/RxSwift.git",
          "version": "4.5.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/RxSwift",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/hmlongco/RxSwiftForms.git
[12/1146] Fetching rxswiftforms
Fetched https://github.com/hmlongco/RxSwiftForms.git from cache (1.31s)
Fetching https://github.com/ReactiveX/RxSwift.git from cache
Fetched https://github.com/ReactiveX/RxSwift.git from cache (0.57s)
Computing version for https://github.com/ReactiveX/RxSwift.git
Computed https://github.com/ReactiveX/RxSwift.git at 4.5.0 (1.18s)
Creating working copy for https://github.com/hmlongco/RxSwiftForms.git
Working copy of https://github.com/hmlongco/RxSwiftForms.git resolved at 0.9.8 (51a7f64)
Creating working copy for https://github.com/ReactiveX/RxSwift.git
Working copy of https://github.com/ReactiveX/RxSwift.git resolved at 4.5.0
warning: '.resolve-product-dependencies': dependency 'rxswiftforms' is not used by any target
Found 1 product dependencies
  - RxSwift
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/hmlongco/RxSwiftForms.git
https://github.com/hmlongco/RxSwiftForms.git
error: Source files for target RxSwiftFormsTests should be located under 'Tests/RxSwiftFormsTests', or a custom sources path can be set with the 'path' property in Package.swift
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
warning: 'rxswift': /Users/admin/builder/spi-builder-workspace/.build/checkouts/RxSwift/Package.swift:8:16: warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
 6 |
 7 | func filterNil<T>(_ array: [T?]) -> [T] {
 8 |   return array.flatMap { $0 }
   |                |- warning: 'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value
   |                `- note: use 'compactMap(_:)' instead
 9 | }
10 |
error: 'spi-builder-workspace': Source files for target RxSwiftFormsTests should be located under 'Tests/RxSwiftFormsTests', or a custom sources path can be set with the 'path' property in Package.swift
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': Source files for target RxSwiftFormsTests should be located under 'Tests/RxSwiftFormsTests', or a custom sources path can be set with the 'path' property in Package.swift
BUILD FAILURE 6.1 macosSpm