Swift Package IndexBuild Information
Successful build of BigNumber, reference v2.4.0 (7e2117), with Swift 6.1 for Linux on 28 Mar 2026 21:46:43 UTC.
Swift 6 data race errors: 2
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mkrd/Swift-BigInt.git
Reference: v2.4.0
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/mkrd/Swift-BigInt
* tag v2.4.0 -> FETCH_HEAD
HEAD is now at 7e21177 update deploy workflow
Cloned https://github.com/mkrd/Swift-BigInt.git
Revision (git rev-parse @):
7e2117797cd1b608303cc2da1a3a2263cc4e7727
SUCCESS checkout https://github.com/mkrd/Swift-BigInt.git at v2.4.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/mkrd/Swift-BigInt.git
https://github.com/mkrd/Swift-BigInt.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
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],
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"name" : "BigNumber",
"path" : "/host/spi-builder-workspace",
"platforms" : [
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"products" : [
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"name" : "BigNumber",
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"BigNumber"
],
"type" : {
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]
}
},
{
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"targets" : [
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],
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}
}
],
"targets" : [
{
"c99name" : "MGToolsTests",
"module_type" : "SwiftTarget",
"name" : "MGToolsTests",
"path" : "Tests/MGToolsTests",
"sources" : [
"MG Math Tests.swift",
"MG Matrix Tests.swift"
],
"target_dependencies" : [
"MGTools"
],
"type" : "test"
},
{
"c99name" : "MGTools",
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"sources" : [
"MG Benchmark Tools.swift",
"MG Complex.swift",
"MG IO.swift",
"MG Math.swift",
"MG Matrix.swift",
"MG QueueDispatch.swift",
"MG Storage.swift",
"MG SuperSwift.swift"
],
"target_dependencies" : [
"BigNumber"
],
"type" : "library"
},
{
"c99name" : "BigNumberTests",
"module_type" : "SwiftTarget",
"name" : "BigNumberTests",
"path" : "Tests/BigNumberTests",
"sources" : [
"BDoubleTests.swift",
"BIntTests.swift",
"Test_Advanced_Math.swift",
"Test_BIntMath.swift",
"Test_Basic_Math.swift",
"Test_Initialization.swift",
"Test_String_Conversions.swift"
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],
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],
"tools_version" : "4.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:108e10880bce35e9496fba26782956e40a8e91a2a227f9b90af7e4cd93d2c183
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
Building for debugging...
[0/9] Write sources
[3/9] Write swift-version-24593BA9C3E375BF.txt
[5/11] Emitting module BigNumber
/host/spi-builder-workspace/Sources/BigNumber/Swift-Big-Number-Core.swift:262:23: warning: static property 'stringPrefixes' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
260 |
261 | /// Common prefixes for different bases
262 | static public var stringPrefixes = [
| |- warning: static property 'stringPrefixes' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'stringPrefixes' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'stringPrefixes' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
263 | 2: "0b",
264 | 8: "0o",
/host/spi-builder-workspace/Sources/BigNumber/Swift-Big-Number-Core.swift:2495:21: warning: static property '_precision' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
2493 | }
2494 |
2495 | static private var _precision = 4
| |- warning: static property '_precision' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_precision' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property '_precision' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
2496 | /**
2497 | * the global percision for all newly created values
[6/11] Compiling BigNumber Swift-Big-Number-Core.swift
/host/spi-builder-workspace/Sources/BigNumber/Swift-Big-Number-Core.swift:262:23: warning: static property 'stringPrefixes' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
260 |
261 | /// Common prefixes for different bases
262 | static public var stringPrefixes = [
| |- warning: static property 'stringPrefixes' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'stringPrefixes' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'stringPrefixes' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
263 | 2: "0b",
264 | 8: "0o",
/host/spi-builder-workspace/Sources/BigNumber/Swift-Big-Number-Core.swift:2495:21: warning: static property '_precision' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
2493 | }
2494 |
2495 | static private var _precision = 4
| |- warning: static property '_precision' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_precision' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property '_precision' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
2496 | /**
2497 | * the global percision for all newly created values
[7/12] Wrapping AST for BigNumber for debugging
[9/20] Compiling MGTools MG IO.swift
[10/21] Compiling MGTools MG Complex.swift
/host/spi-builder-workspace/Sources/MGTools/MG Complex.swift:24:19: warning: setter argument 'newValue' was never used, but the property was accessed
22 | {
23 | get { return self.re }
24 | set { self.re = r }
| |- warning: setter argument 'newValue' was never used, but the property was accessed
| `- note: did you mean to use 'newValue' instead of accessing the property's current value?
25 | }
26 |
/host/spi-builder-workspace/Sources/MGTools/MG Complex.swift:30:19: warning: setter argument 'newValue' was never used, but the property was accessed
28 | {
29 | get { return self.im }
30 | set { self.im = i }
| |- warning: setter argument 'newValue' was never used, but the property was accessed
| `- note: did you mean to use 'newValue' instead of accessing the property's current value?
31 | }
32 | }
[11/21] Compiling MGTools MG QueueDispatch.swift
/host/spi-builder-workspace/Sources/MGTools/MG QueueDispatch.swift:25:69: warning: passing non-sendable parameter 'closure' to function expecting a @Sendable closure
19 | Run trailing closure after a given time in seconds in background queue.
20 | */
21 | static public func runAfterDelay(_ seconds: Double, _ closure: @escaping () -> ())
| `- note: parameter 'closure' is implicitly non-sendable
22 | {
23 | let queue = DispatchQueue.global()
24 |
25 | queue.asyncAfter(deadline: DispatchTime.now() + seconds, execute: closure)
| `- warning: passing non-sendable parameter 'closure' to function expecting a @Sendable closure
26 | }
27 |
/host/spi-builder-workspace/Sources/MGTools/MG QueueDispatch.swift:40:23: warning: converting non-sendable function value to '@Sendable () -> Void' may introduce data races
38 | for closure in closures
39 | {
40 | queue.addOperation(closure)
| `- warning: converting non-sendable function value to '@Sendable () -> Void' may introduce data races
41 | }
42 |
[12/21] Compiling MGTools MG Storage.swift
[13/21] Emitting module MGTools
[14/21] Compiling MGTools MG Benchmark Tools.swift
[15/21] Compiling MGTools MG SuperSwift.swift
[16/21] Compiling MGTools MG Math.swift
[17/21] Compiling MGTools MG Matrix.swift
[18/22] Wrapping AST for MGTools for debugging
[20/25] Compiling Benchmarks main.swift
[21/25] Emitting module Benchmarks
[22/25] Compiling Benchmarks Benchmarks.swift
[23/26] Wrapping AST for Benchmarks for debugging
[24/26] Write Objects.LinkFileList
[25/26] Linking Benchmarks
Build complete! (14.28s)
Build complete.
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basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:108e10880bce35e9496fba26782956e40a8e91a2a227f9b90af7e4cd93d2c183
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
Done.