Swift Package IndexBuild Information
Failed to build BigNumber, reference master (e35508), with Swift 6.1 for Android on 29 Mar 2026 15:53:09 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mkrd/Swift-BigInt.git
Reference: master
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
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at e355084 add test case
Cloned https://github.com/mkrd/Swift-BigInt.git
Revision (git rev-parse @):
e3550843fed908ee3759ee37553cc8a83d9ea3b8
SUCCESS checkout https://github.com/mkrd/Swift-BigInt.git at master
========================================
Build
========================================
Selected platform: android
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
{
"dependencies" : [
],
"manifest_display_name" : "BigNumber",
"name" : "BigNumber",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "BigNumber",
"targets" : [
"BigNumber"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "Verify",
"targets" : [
"Verify"
],
"type" : {
"executable" : null
}
},
{
"name" : "Benchmarks",
"targets" : [
"Benchmarks"
],
"type" : {
"executable" : null
}
}
],
"targets" : [
{
"c99name" : "Verify",
"module_type" : "SwiftTarget",
"name" : "Verify",
"path" : "Sources/Verify",
"product_memberships" : [
"Verify"
],
"sources" : [
"main.swift"
],
"target_dependencies" : [
"BigNumber",
"MGTools"
],
"type" : "executable"
},
{
"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",
"module_type" : "SwiftTarget",
"name" : "MGTools",
"path" : "Sources/MGTools",
"product_memberships" : [
"Verify",
"Benchmarks"
],
"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_BDouble_Extended.swift",
"Test_BIntMath.swift",
"Test_BIntMath_Extended.swift",
"Test_BInt_Division.swift",
"Test_BInt_Properties.swift",
"Test_Basic_Math.swift",
"Test_Bitwise_Operations.swift",
"Test_Initialization.swift",
"Test_String_Conversions.swift",
"Test_String_Conversions_Extended.swift"
],
"target_dependencies" : [
"BigNumber",
"MGTools"
],
"type" : "test"
},
{
"c99name" : "BigNumber",
"module_type" : "SwiftTarget",
"name" : "BigNumber",
"path" : "Sources/BigNumber",
"product_memberships" : [
"BigNumber",
"Verify",
"Benchmarks"
],
"sources" : [
"Swift-Big-Number-Core.swift"
],
"type" : "library"
},
{
"c99name" : "Benchmarks",
"module_type" : "SwiftTarget",
"name" : "Benchmarks",
"path" : "Sources/Benchmarks",
"product_memberships" : [
"Benchmarks"
],
"sources" : [
"Benchmarks.swift",
"main.swift"
],
"target_dependencies" : [
"BigNumber",
"MGTools"
],
"type" : "executable"
}
],
"tools_version" : "4.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 -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
android-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:8d42880410d691f231f1a6445d3941a4c9d6c7af65062a9750a54d2059944963
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.1-latest
Building for debugging...
[0/13] Write sources
[4/13] Write swift-version-24593BA9C3E375BF.txt
[6/15] 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:2615:21: 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
2613 | }
2614 |
2615 | 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
2616 | /**
2617 | * the global percision for all newly created values
[7/15] 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:2615:21: 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
2613 | }
2614 |
2615 | 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
2616 | /**
2617 | * the global percision for all newly created values
[8/16] Wrapping AST for BigNumber for debugging
[10/24] Compiling MGTools MG Storage.swift
[11/24] 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 |
[12/25] Compiling MGTools MG SuperSwift.swift
[13/25] Emitting module MGTools
[14/25] Compiling MGTools MG Benchmark Tools.swift
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:35:10: error: cannot find 'mach_absolute_time' in scope
33 | var end = UInt64()
34 |
35 | start = mach_absolute_time()
| `- error: cannot find 'mach_absolute_time' in scope
36 | call()
37 | end = mach_absolute_time()
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:37:8: error: cannot find 'mach_absolute_time' in scope
35 | start = mach_absolute_time()
36 | call()
37 | end = mach_absolute_time()
| `- error: cannot find 'mach_absolute_time' in scope
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:39:21: error: cannot find 'mach_timebase_info_data_t' in scope
37 | end = mach_absolute_time()
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
| `- error: cannot find 'mach_timebase_info_data_t' in scope
40 | mach_timebase_info(&timeBaseInfo)
41 |
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:40:2: error: cannot find 'mach_timebase_info' in scope
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
40 | mach_timebase_info(&timeBaseInfo)
| `- error: cannot find 'mach_timebase_info' in scope
41 |
42 | return Int(end - start) * Int(timeBaseInfo.numer) / Int(timeBaseInfo.denom)
[15/25] Compiling MGTools MG IO.swift
[16/25] Compiling MGTools MG Math.swift
[17/25] 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 | }
[18/25] Compiling MGTools MG Matrix.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1
android-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:8d42880410d691f231f1a6445d3941a4c9d6c7af65062a9750a54d2059944963
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.1-latest
[0/1] Planning build
Building for debugging...
[0/9] Write swift-version-24593BA9C3E375BF.txt
[2/11] Emitting module BigNumber
[3/11] Compiling BigNumber Swift-Big-Number-Core.swift
[4/12] Wrapping AST for BigNumber for debugging
[6/20] Compiling MGTools MG Storage.swift
[7/21] Compiling MGTools MG SuperSwift.swift
[8/21] Compiling MGTools MG IO.swift
[9/21] 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 | }
[10/21] Emitting module MGTools
[11/21] Compiling MGTools MG Math.swift
[12/21] Compiling MGTools MG Benchmark Tools.swift
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:35:10: error: cannot find 'mach_absolute_time' in scope
33 | var end = UInt64()
34 |
35 | start = mach_absolute_time()
| `- error: cannot find 'mach_absolute_time' in scope
36 | call()
37 | end = mach_absolute_time()
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:37:8: error: cannot find 'mach_absolute_time' in scope
35 | start = mach_absolute_time()
36 | call()
37 | end = mach_absolute_time()
| `- error: cannot find 'mach_absolute_time' in scope
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:39:21: error: cannot find 'mach_timebase_info_data_t' in scope
37 | end = mach_absolute_time()
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
| `- error: cannot find 'mach_timebase_info_data_t' in scope
40 | mach_timebase_info(&timeBaseInfo)
41 |
/host/spi-builder-workspace/Sources/MGTools/MG Benchmark Tools.swift:40:2: error: cannot find 'mach_timebase_info' in scope
38 |
39 | var timeBaseInfo = mach_timebase_info_data_t()
40 | mach_timebase_info(&timeBaseInfo)
| `- error: cannot find 'mach_timebase_info' in scope
41 |
42 | return Int(end - start) * Int(timeBaseInfo.numer) / Int(timeBaseInfo.denom)
[13/21] 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 |
[14/21] Compiling MGTools MG Matrix.swift
BUILD FAILURE 6.1 android