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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

Successful build of SwiftCompactor with Swift 6.0 for Linux.

Swift 6 data race errors: 4

Build Command

bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/openalloc/SwiftCompactor.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/openalloc/SwiftCompactor
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7c802b9 Simplify See Also section of README
Cloned https://github.com/openalloc/SwiftCompactor.git
Revision (git rev-parse @):
7c802b99f84987e9e9d9d1e5fff7d8ecc2452aab
SUCCESS checkout https://github.com/openalloc/SwiftCompactor.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/openalloc/SwiftCompactor.git
Running build ...
bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/9] Compiling Compactor TimeCompactor.swift
/host/spi-builder-workspace/Sources/TimeCompactor.swift:102:24: warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
100 |
101 |     // cached lookup tables
102 |     private static let halfDollarLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: halfDollar)
    |                        |- warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'halfDollarLookup' 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
103 |     private static let nickelLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: nickel)
104 |
/host/spi-builder-workspace/Sources/TimeCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
 20 |
 21 | public extension TimeCompactor {
 22 |     enum Scale {
    |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
 23 |         case second
 24 |         case minute
/host/spi-builder-workspace/Sources/TimeCompactor.swift:103:24: warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
101 |     // cached lookup tables
102 |     private static let halfDollarLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: halfDollar)
103 |     private static let nickelLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: nickel)
    |                        |- warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'nickelLookup' 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
104 |
105 |     static func getThreshold(_ roundSmallToWhole: Bool) -> Double {
/host/spi-builder-workspace/Sources/TimeCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
 20 |
 21 | public extension TimeCompactor {
 22 |     enum Scale {
    |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
 23 |         case second
 24 |         case minute
[4/9] Compiling Compactor TimeCompactor+Style.swift
[5/9] Compiling Compactor NumberCompactor.swift
/host/spi-builder-workspace/Sources/NumberCompactor.swift:86:24: warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
 84 |
 85 |     // cached lookup tables
 86 |     private static let halfDollarLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: halfDollar)
    |                        |- warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'halfDollarLookup' 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
 87 |     private static let nickelLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: nickel)
 88 |
/host/spi-builder-workspace/Sources/NumberCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
20 |
21 | public extension NumberCompactor {
22 |     enum Scale: Int, CaseIterable {
   |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
23 |         case none = 0
24 |         case kilo = 1
/host/spi-builder-workspace/Sources/NumberCompactor.swift:87:24: warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
 85 |     // cached lookup tables
 86 |     private static let halfDollarLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: halfDollar)
 87 |     private static let nickelLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: nickel)
    |                        |- warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'nickelLookup' 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
 88 |
 89 |     static func getThreshold(_ roundSmallToWhole: Bool) -> Double {
/host/spi-builder-workspace/Sources/NumberCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
20 |
21 | public extension NumberCompactor {
22 |     enum Scale: Int, CaseIterable {
   |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
23 |         case none = 0
24 |         case kilo = 1
[6/9] Compiling Compactor NumberCompactor+Scale.swift
[7/9] Compiling Compactor TimeCompactor+Scale.swift
[8/9] Compiling Compactor CurrencyCompactor.swift
[9/9] Emitting module Compactor
/host/spi-builder-workspace/Sources/NumberCompactor.swift:86:24: warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
 84 |
 85 |     // cached lookup tables
 86 |     private static let halfDollarLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: halfDollar)
    |                        |- warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'halfDollarLookup' 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
 87 |     private static let nickelLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: nickel)
 88 |
/host/spi-builder-workspace/Sources/NumberCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
20 |
21 | public extension NumberCompactor {
22 |     enum Scale: Int, CaseIterable {
   |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
23 |         case none = 0
24 |         case kilo = 1
/host/spi-builder-workspace/Sources/NumberCompactor.swift:87:24: warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
 85 |     // cached lookup tables
 86 |     private static let halfDollarLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: halfDollar)
 87 |     private static let nickelLookup: [LOOKUP] = NumberCompactor.generateLookup(threshold: nickel)
    |                        |- warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[NumberCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: NumberCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'nickelLookup' 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
 88 |
 89 |     static func getThreshold(_ roundSmallToWhole: Bool) -> Double {
/host/spi-builder-workspace/Sources/NumberCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
20 |
21 | public extension NumberCompactor {
22 |     enum Scale: Int, CaseIterable {
   |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
23 |         case none = 0
24 |         case kilo = 1
/host/spi-builder-workspace/Sources/TimeCompactor.swift:102:24: warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
100 |
101 |     // cached lookup tables
102 |     private static let halfDollarLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: halfDollar)
    |                        |- warning: static property 'halfDollarLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'halfDollarLookup' 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
103 |     private static let nickelLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: nickel)
104 |
/host/spi-builder-workspace/Sources/TimeCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
 20 |
 21 | public extension TimeCompactor {
 22 |     enum Scale {
    |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
 23 |         case second
 24 |         case minute
/host/spi-builder-workspace/Sources/TimeCompactor.swift:103:24: warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
101 |     // cached lookup tables
102 |     private static let halfDollarLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: halfDollar)
103 |     private static let nickelLookup: [LOOKUP] = TimeCompactor.generateLookup(threshold: nickel)
    |                        |- warning: static property 'nickelLookup' is not concurrency-safe because non-'Sendable' type '[TimeCompactor.LOOKUP]' (aka 'Array<(range: Range<Double>, divisor: Double, scale: TimeCompactor.Scale)>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'nickelLookup' 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
104 |
105 |     static func getThreshold(_ roundSmallToWhole: Bool) -> Double {
/host/spi-builder-workspace/Sources/TimeCompactor+Scale.swift:22:10: note: consider making enum 'Scale' conform to the 'Sendable' protocol
 20 |
 21 | public extension TimeCompactor {
 22 |     enum Scale {
    |          `- note: consider making enum 'Scale' conform to the 'Sendable' protocol
 23 |         case second
 24 |         case minute
Build complete! (10.49s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftCompactor",
  "name" : "SwiftCompactor",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Compactor",
      "targets" : [
        "Compactor"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CompactorTests",
      "module_type" : "SwiftTarget",
      "name" : "CompactorTests",
      "path" : "Tests",
      "sources" : [
        "CurrencyCompactorTests.swift",
        "NumberCompactorTests.swift",
        "TimeCompactorTests.swift"
      ],
      "target_dependencies" : [
        "Compactor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Compactor",
      "module_type" : "SwiftTarget",
      "name" : "Compactor",
      "path" : "Sources",
      "product_memberships" : [
        "Compactor"
      ],
      "sources" : [
        "CurrencyCompactor.swift",
        "NumberCompactor+Scale.swift",
        "NumberCompactor.swift",
        "TimeCompactor+Scale.swift",
        "TimeCompactor+Style.swift",
        "TimeCompactor.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.