Swift Package IndexBuild Information
Failed to build ElementaryCycles, reference 0.4.0 (824a7d), with Swift 6.4 for Android on 15 Sep 2026 19:01:29 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/hectr/swift-elementary-cycles.git
Reference: 0.4.0
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/hectr/swift-elementary-cycles
* tag 0.4.0 -> FETCH_HEAD
HEAD is now at 824a7d8 Release 0.4.0
Cloned https://github.com/hectr/swift-elementary-cycles.git
Revision (git rev-parse @):
824a7d8c9beff5bb4ce81ce65877e63c1bb85fac
SUCCESS checkout https://github.com/hectr/swift-elementary-cycles.git at 0.4.0
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Build
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Selected platform: android
Swift version: 6.4
Building package at path: $PWD
https://github.com/hectr/swift-elementary-cycles.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:abadcff584c273feba50641b454858d377ba30b35ea7287a94f45ebd8afd0ea0
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Fetching https://github.com/hectr/swift-idioms.git
[1/393] Fetching swift-idioms
Fetched https://github.com/hectr/swift-idioms.git (0.62s)
Computing version for https://github.com/hectr/swift-idioms.git
Computed https://github.com/hectr/swift-idioms.git at 1.9.0 (0.81s)
Creating working copy for https://github.com/hectr/swift-idioms.git
Working copy of https://github.com/hectr/swift-idioms.git resolved at 1.9.0
Building for debugging...
[Pre-planning 1 / 183]
[Starting]
[45 / 72] Idioms
[53 / 79] ElementaryCyclesSearch
[56 / 79] ElementaryCyclesSearch
[61 / 79] ElementaryCyclesSearchExample-product
[65 / 82]
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'[0;0m
[0;36m18 |[0;0m extension Matrix2D where Element == Bool {
[0;36m19 |[0;0m enum Error: Swift.Error {
[0;36m20 |[0;0m case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
[0;36m|[0;0m `- [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'[0;0m
[0;36m21 |[0;0m }
[0;36m22 |[0;0m
Swift.AnyHashable:1:23: [1;39mnote: [1;39mstruct 'AnyHashable' does not conform to the 'Sendable' protocol[0;0m
[0;36m1 |[0;0m @frozen public struct AnyHashable {
[0;36m|[0;0m `- [1;39mnote: [1;39mstruct 'AnyHashable' does not conform to the 'Sendable' protocol[0;0m
[0;36m2 |[0;0m public init<H>(_ base: H) where H : Hashable
[0;36m3 |[0;0m public var base: Any { get }
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'[0;0m
[0;36m18 |[0;0m extension Matrix2D where Element == Bool {
[0;36m19 |[0;0m enum Error: Swift.Error {
[0;36m20 |[0;0m case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
[0;36m|[0;0m `- [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'[0;0m
[0;36m21 |[0;0m }
[0;36m22 |[0;0m
Swift.Array:1:23: [1;39mnote: [1;39mgeneric struct 'Array' does not conform to the 'Sendable' protocol[0;0m
[0;36m1 |[0;0m @frozen public struct Array<Element> : _DestructorSafeContainer {
[0;36m|[0;0m `- [1;39mnote: [1;39mgeneric struct 'Array' does not conform to the 'Sendable' protocol[0;0m
[0;36m2 |[0;0m }
[72 / 90] ElementaryCyclesSearch
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'[0;0m
[0;36m18 |[0;0m extension Matrix2D where Element == Bool {
[0;36m19 |[0;0m enum Error: Swift.Error {
[0;36m20 |[0;0m case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
[0;36m|[0;0m `- [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type 'AnyHashable'[0;0m
[0;36m21 |[0;0m }
[0;36m22 |[0;0m
Swift.AnyHashable:1:23: [1;39mnote: [1;39mstruct 'AnyHashable' does not conform to the 'Sendable' protocol[0;0m
[0;36m1 |[0;0m @frozen public struct AnyHashable {
[0;36m|[0;0m `- [1;39mnote: [1;39mstruct 'AnyHashable' does not conform to the 'Sendable' protocol[0;0m
[0;36m2 |[0;0m public init<H>(_ base: H) where H : Hashable
[0;36m3 |[0;0m public var base: Any { get }
/host/spi-builder-workspace/Sources/ElementaryCycles/Private/AdjacencyMatrix+getAdjacencyMatrix.swift:20:14: [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'[0;0m
[0;36m18 |[0;0m extension Matrix2D where Element == Bool {
[0;36m19 |[0;0m enum Error: Swift.Error {
[0;36m20 |[0;0m case indexNotFound(node: AnyHashable, nodes: [AnyHashable])
[0;36m|[0;0m `- [1;33mwarning: [1;39massociated value 'indexNotFound(node:nodes:)' of 'Sendable'-conforming enum 'Error' contains non-Sendable type '[AnyHashable]'[0;0m
[0;36m21 |[0;0m }
[0;36m22 |[0;0m
Swift.Array:1:23: [1;39mnote: [1;39mgeneric struct 'Array' does not conform to the 'Sendable' protocol[0;0m
[0;36m1 |[0;0m @frozen public struct Array<Element> : _DestructorSafeContainer {
[0;36m|[0;0m `- [1;39mnote: [1;39mgeneric struct 'Array' does not conform to the 'Sendable' protocol[0;0m
[0;36m2 |[0;0m }
[82 / 90] ElementaryCycles
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile CharacterSet+characters.swift
[84 / 91] Idioms
/host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift:30:20: [1;31merror: [1;39mcannot find type 'UTF32Char' in scope[0;0m
[0;36m28 |[0;0m let p0 = UInt32(plane) << 16
[0;36m29 |[0;0m let p1 = (UInt32(plane) + 1) << 16
[0;36m30 |[0;0m for c: [4;39mUTF32Char[0;0m in p0..<p1 {
[0;36m|[0;0m `- [1;31merror: [1;39mcannot find type 'UTF32Char' in scope[0;0m
[0;36m31 |[0;0m guard let scalar = UnicodeScalar(c) else { continue }
[0;36m32 |[0;0m guard contains(scalar) else { continue }
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Array+appending.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Array+removing.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Bool+ControlFlow.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/CharacterSet+characters.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Dictionary+deepMerging.swift -primary-file /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/ForLoop.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Int+Times.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/IterableRandomAccessCollection.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Matrix2D+Sequence.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Matrix2D.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/RandomAccessMutableCollection.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/RegularExpressionMatchOperator.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+Prepending.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+Word.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/String+removing.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/StringProtocol+Subscript.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Vector+Sequence.swift /host/spi-builder-workspace/.build/checkouts/swift-idioms/Sources/Idioms/Vector.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/supplementaryOutputs-2 -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -sysroot /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -I /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -suppress-warnings -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins/testing\#/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/18 -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Idioms -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/Idioms_const_extract_protocols.json -in-process-plugin-server-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/CharacterSet+characters.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/Dictionary+deepMerging.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/ForLoop.o -index-unit-output-path /Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/CharacterSet+characters.o -index-unit-output-path /Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/Dictionary+deepMerging.o -index-unit-output-path /Idioms.build/Debug-android-aarch64/Idioms-t.build/Objects-normal/aarch64/ForLoop.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 android