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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 sls, reference main (226a25), with Swift 6.0 for macOS (SPM) on 5 Nov 2024 06:51:44 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/maclong9/swift-list.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/maclong9/swift-list
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 226a254 feat(Package): updated to swift v6.0
Cloned https://github.com/maclong9/swift-list.git
Revision (git rev-parse @):
226a2545d615d765f5c28cea09d574db87ca9002
SUCCESS checkout https://github.com/maclong9/swift-list.git at main
Fetching https://github.com/apple/swift-argument-parser
[1/12353] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.70s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.4.0 (0.56s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.4.0
========================================
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-list",
      "name": "sls",
      "url": "https://github.com/maclong9/swift-list.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-list",
      "dependencies": [
        {
          "identity": "swift-argument-parser",
          "name": "swift-argument-parser",
          "url": "https://github.com/apple/swift-argument-parser",
          "version": "1.5.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/maclong9/swift-list.git
[1/359] Fetching swift-list
Fetched https://github.com/maclong9/swift-list.git from cache (1.05s)
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.56s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.04s)
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/maclong9/swift-list.git
Working copy of https://github.com/maclong9/swift-list.git resolved at main (226a254)
Found 1 product dependencies
  - swift-argument-parser
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/maclong9/swift-list.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...
[1/9] Write sources
[4/9] Write sls-entitlement.plist
[5/9] Write swift-version--7754E27361AE5C74.txt
[7/11] Emitting module ArgumentParserToolInfo
[8/11] Compiling ArgumentParserToolInfo ToolInfo.swift
[9/49] Compiling ArgumentParser AsyncParsableCommand.swift
[10/49] Compiling ArgumentParser CommandConfiguration.swift
[11/49] Compiling ArgumentParser EnumerableFlag.swift
[12/49] Compiling ArgumentParser ExpressibleByArgument.swift
[13/53] Compiling ArgumentParser InputOrigin.swift
[14/53] Compiling ArgumentParser Name.swift
[15/53] Compiling ArgumentParser Parsed.swift
[16/53] Compiling ArgumentParser ParsedValues.swift
[17/53] Compiling ArgumentParser BashCompletionsGenerator.swift
[18/53] Compiling ArgumentParser CompletionsGenerator.swift
[19/53] Compiling ArgumentParser FishCompletionsGenerator.swift
[20/53] Compiling ArgumentParser ZshCompletionsGenerator.swift
[21/53] Compiling ArgumentParser Argument.swift
[22/53] Compiling ArgumentParser Flag.swift
[23/53] Compiling ArgumentParser NameSpecification.swift
[24/53] Compiling ArgumentParser Option.swift
[25/53] Compiling ArgumentParser OptionGroup.swift
[26/53] Compiling ArgumentParser Platform.swift
[27/53] Compiling ArgumentParser SequenceExtensions.swift
[28/53] Compiling ArgumentParser StringExtensions.swift
[29/53] Compiling ArgumentParser Tree.swift
[30/53] Compiling ArgumentParser ParsableArguments.swift
[31/53] Compiling ArgumentParser ParsableArgumentsValidation.swift
[32/53] Compiling ArgumentParser ParsableCommand.swift
[33/53] Compiling ArgumentParser ArgumentDecoder.swift
[34/53] Compiling ArgumentParser ArgumentHelp.swift
[35/53] Compiling ArgumentParser ArgumentVisibility.swift
[36/53] Compiling ArgumentParser CompletionKind.swift
[37/53] Compiling ArgumentParser Errors.swift
[38/53] Emitting module ArgumentParser
[39/53] Compiling ArgumentParser ParserError.swift
[40/53] Compiling ArgumentParser SplitArguments.swift
[41/53] Compiling ArgumentParser DumpHelpGenerator.swift
[42/53] Compiling ArgumentParser HelpCommand.swift
[43/53] Compiling ArgumentParser HelpGenerator.swift
[44/53] Compiling ArgumentParser MessageInfo.swift
[45/53] Compiling ArgumentParser UsageGenerator.swift
[46/53] Compiling ArgumentParser CollectionExtensions.swift
[47/53] Compiling ArgumentParser ArgumentDefinition.swift
[48/53] Compiling ArgumentParser ArgumentSet.swift
[49/53] Compiling ArgumentParser CommandParser.swift
[50/53] Compiling ArgumentParser InputKey.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[51/55] Emitting module sls
/Users/admin/builder/spi-builder-workspace/Sources/SwiftList.swift:27:5: error: let 'files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
 25 | }
 26 |
 27 | let files = FileManager.default
    |     |- error: let 'files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
    |     |- note: annotate 'files' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 28 |
 29 | class FileManagerHelper {
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
/Users/admin/builder/spi-builder-workspace/Sources/SwiftList.swift:30:16: error: static property 'fm' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
 28 |
 29 | class FileManagerHelper {
 30 |     static let fm = FileManager.default
    |                |- error: static property 'fm' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
    |                |- note: annotate 'fm' with '@MainActor' if property should only be accessed from the main actor
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     static func determineType(of location: URL) throws -> FileRepresentation {
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
[52/55] Compiling sls SwiftList.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftList.swift:27:5: error: let 'files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
 25 | }
 26 |
 27 | let files = FileManager.default
    |     |- error: let 'files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
    |     |- note: annotate 'files' with '@MainActor' if property should only be accessed from the main actor
    |     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 28 |
 29 | class FileManagerHelper {
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
/Users/admin/builder/spi-builder-workspace/Sources/SwiftList.swift:30:16: error: static property 'fm' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
 28 |
 29 | class FileManagerHelper {
 30 |     static let fm = FileManager.default
    |                |- error: static property 'fm' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state
    |                |- note: annotate 'fm' with '@MainActor' if property should only be accessed from the main actor
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     static func determineType(of location: URL) throws -> FileRepresentation {
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
BUILD FAILURE 6.0 macosSpm