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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 EmailComposer, reference 1.0.2 (6c35d9), with Swift 6.0 for macOS (SPM) on 28 Nov 2024 04:29:55 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 -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: 4.58.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/gabrieltheodoropoulos/EmailComposer.git
Reference: 1.0.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/gabrieltheodoropoulos/EmailComposer
 * tag               1.0.2      -> FETCH_HEAD
HEAD is now at 6c35d94 Updated Readme
Cloned https://github.com/gabrieltheodoropoulos/EmailComposer.git
Revision (git rev-parse @):
6c35d94b4abd760c3d1eb513ea59baabaecad607
SUCCESS checkout https://github.com/gabrieltheodoropoulos/EmailComposer.git at 1.0.2
========================================
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": "emailcomposer",
      "name": "EmailComposer",
      "url": "https://github.com/gabrieltheodoropoulos/EmailComposer.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/EmailComposer",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/gabrieltheodoropoulos/EmailComposer.git
[1/50] Fetching emailcomposer
Fetched https://github.com/gabrieltheodoropoulos/EmailComposer.git from cache (0.81s)
Creating working copy for https://github.com/gabrieltheodoropoulos/EmailComposer.git
Working copy of https://github.com/gabrieltheodoropoulos/EmailComposer.git resolved at 1.0.2 (6c35d94)
warning: '.resolve-product-dependencies': dependency 'emailcomposer' 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/gabrieltheodoropoulos/EmailComposer.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 -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] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/8] Compiling EmailComposer EmailComposerView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
[4/8] Compiling EmailComposer EmailData.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
[5/8] Compiling EmailComposer EmailComposerResult.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
[6/8] Compiling EmailComposer EmailComposerUnableDeviceViews.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
[7/8] Emitting module EmailComposer
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
[8/8] Compiling EmailComposer EmailComposer.swift
/Users/admin/builder/spi-builder-workspace/Sources/EmailComposer/EmailComposerView.swift:11:8: error: no such module 'MessageUI'
 9 |
10 | import SwiftUI
11 | import MessageUI
   |        `- error: no such module 'MessageUI'
12 |
13 | /// A UIViewControllerRepresentable type that brings the
BUILD FAILURE 6.0 macosSpm