Swift Package IndexBuild Information
Successful build of FDec, reference main (f77b37), with Swift 6.1 for macOS (SPM) on 2 Dec 2025 18:18:25 UTC.
Swift 6 data race errors: 7
Build Command
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 InferSendableFromCapturesBuild Log
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RunAll
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/metatronsw/FDec.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/metatronsw/FDec
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at f77b37a + Minor bug fixes and cosmetic improvements
Cloned https://github.com/metatronsw/FDec.git
Revision (git rev-parse @):
f77b37a4daa62a72c99d49b973414c7220bffefe
SUCCESS checkout https://github.com/metatronsw/FDec.git at main
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Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/metatronsw/FDec.git
https://github.com/metatronsw/FDec.git
{
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"name" : "FDec",
"path" : "/Users/admin/builder/spi-builder-workspace",
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"targets" : [
{
"c99name" : "FDecTests",
"module_type" : "SwiftTarget",
"name" : "FDecTests",
"path" : "Tests/FDecTests",
"sources" : [
"FDecTests.swift"
],
"target_dependencies" : [
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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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/4] Emitting module FDec
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:43:20: warning: static property 'decimalPlaces' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
41 | /// Project-based setting that lets you set the number of decimal places.
42 | ///
43 | public static var decimalPlaces: Int = 4 {
| |- warning: static property 'decimalPlaces' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'decimalPlaces' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'decimalPlaces' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | didSet {
45 | pow = decimalPlaces.pow10()
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:51:20: warning: static property 'pow' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
49 | }
50 |
51 | public static var pow = decimalPlaces.pow10()
| |- warning: static property 'pow' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'pow' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'pow' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
53 | public static var intMaxDecimals = 19 - decimalPlaces
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:52:20: warning: static property 'zeroShift' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
50 |
51 | public static var pow = decimalPlaces.pow10()
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
| |- warning: static property 'zeroShift' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'zeroShift' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'zeroShift' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
53 | public static var intMaxDecimals = 19 - decimalPlaces
54 |
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:53:20: warning: static property 'intMaxDecimals' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
51 | public static var pow = decimalPlaces.pow10()
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
53 | public static var intMaxDecimals = 19 - decimalPlaces
| |- warning: static property 'intMaxDecimals' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'intMaxDecimals' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'intMaxDecimals' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
54 |
55 | public static let zero = FDec()
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:55:20: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
53 | public static var intMaxDecimals = 19 - decimalPlaces
54 |
55 | public static let zero = FDec()
| |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
56 | public static let infinity = FDec(raw: Int.max)
57 | public static let nan = FDec(raw: Int.min)
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:56:20: warning: static property 'infinity' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
54 |
55 | public static let zero = FDec()
56 | public static let infinity = FDec(raw: Int.max)
| |- warning: static property 'infinity' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'infinity' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
57 | public static let nan = FDec(raw: Int.min)
58 |
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:57:20: warning: static property 'nan' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
55 | public static let zero = FDec()
56 | public static let infinity = FDec(raw: Int.max)
57 | public static let nan = FDec(raw: Int.min)
| |- warning: static property 'nan' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'nan' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
58 |
59 | // MARK: Private Static - Helper numbers, for quick internal operations
[4/4] Compiling FDec FDec.swift
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:43:20: warning: static property 'decimalPlaces' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
41 | /// Project-based setting that lets you set the number of decimal places.
42 | ///
43 | public static var decimalPlaces: Int = 4 {
| |- warning: static property 'decimalPlaces' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'decimalPlaces' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'decimalPlaces' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | didSet {
45 | pow = decimalPlaces.pow10()
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:51:20: warning: static property 'pow' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
49 | }
50 |
51 | public static var pow = decimalPlaces.pow10()
| |- warning: static property 'pow' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'pow' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'pow' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
53 | public static var intMaxDecimals = 19 - decimalPlaces
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:52:20: warning: static property 'zeroShift' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
50 |
51 | public static var pow = decimalPlaces.pow10()
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
| |- warning: static property 'zeroShift' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'zeroShift' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'zeroShift' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
53 | public static var intMaxDecimals = 19 - decimalPlaces
54 |
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:53:20: warning: static property 'intMaxDecimals' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
51 | public static var pow = decimalPlaces.pow10()
52 | public static var zeroShift = String(repeating: "0", count: decimalPlaces)
53 | public static var intMaxDecimals = 19 - decimalPlaces
| |- warning: static property 'intMaxDecimals' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'intMaxDecimals' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'intMaxDecimals' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
54 |
55 | public static let zero = FDec()
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:55:20: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
53 | public static var intMaxDecimals = 19 - decimalPlaces
54 |
55 | public static let zero = FDec()
| |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
56 | public static let infinity = FDec(raw: Int.max)
57 | public static let nan = FDec(raw: Int.min)
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:56:20: warning: static property 'infinity' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
54 |
55 | public static let zero = FDec()
56 | public static let infinity = FDec(raw: Int.max)
| |- warning: static property 'infinity' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'infinity' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
57 | public static let nan = FDec(raw: Int.min)
58 |
/Users/admin/builder/spi-builder-workspace/Sources/FDec/FDec.swift:57:20: warning: static property 'nan' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
17 | /// A fixed decimal number format.
18 | ///
19 | public struct FDec {
| `- note: consider making struct 'FDec' conform to the 'Sendable' protocol
20 |
21 | /// The value actually shifted & stored inernaly
:
55 | public static let zero = FDec()
56 | public static let infinity = FDec(raw: Int.max)
57 | public static let nan = FDec(raw: Int.min)
| |- warning: static property 'nan' is not concurrency-safe because non-'Sendable' type 'FDec' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'nan' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
58 |
59 | // MARK: Private Static - Helper numbers, for quick internal operations
Build complete! (4.06s)
Build complete.
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Done.