Swift Package Index

Build Information

Failed to build swift-hyperloglog, reference 0.0.3 (ef18df), with Swift 6.4 for Android on 22 Sep 2026 10:31:23 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886770-2":/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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/t089/swift-hyperloglog.git
Reference: 0.0.3
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/t089/swift-hyperloglog
 * tag               0.0.3      -> FETCH_HEAD
HEAD is now at ef18df4 adds ci.yaml (#1)
Cloned https://github.com/t089/swift-hyperloglog.git
Revision (git rev-parse @):
ef18df415754140b3c2e1bb251b45f94bbe8f6d6
SUCCESS checkout https://github.com/t089/swift-hyperloglog.git at 0.0.3
========================================
Build
========================================
Selected platform:         android
Swift version:             6.4
Building package at path:  $PWD
https://github.com/t089/swift-hyperloglog.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-2":/host -w "$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
Building for debugging...
[Planning deferred tasks]
[21 / 29] HyperLogLog
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/HyperLogLog/HyperLogLog.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile HyperLogLog.swift
/host/spi-builder-workspace/Sources/HyperLogLog/HyperLogLog.swift:153:18: error: cannot find 'pow' in scope
151 |         var Z = 0.0
152 |         for i in 0..<registers.count {
153 |             Z += pow(2.0, -Double(registers[i]))
    |                  `- error: cannot find 'pow' in scope
154 |         }
155 |         let E = alpha * m * m / Z
/host/spi-builder-workspace/Sources/HyperLogLog/HyperLogLog.swift:164:29: error: cannot find 'log' in scope
162 |         let two32 = Double(1 << 32)
163 |         if E > two32 / 30.0 {
164 |             return -two32 * log(1.0 - E / two32)
    |                             `- error: cannot find 'log' in scope
165 |         }
166 |
/host/spi-builder-workspace/Sources/HyperLogLog/HyperLogLog.swift:187:20: error: cannot find 'log' in scope
185 |     /// Linear counting for small cardinalities: m * ln(m / V), where V = number of zero registers.
186 |     private static func linearCount(m: Double, zeros: Double) -> Double {
187 |         return m * log(m / zeros)
    |                    `- error: cannot find 'log' in scope
188 |     }
189 | }
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -c -primary-file /host/spi-builder-workspace/Sources/HyperLogLog/HyperLogLog.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.dia -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 -swift-version 6 -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/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name HyperLogLog -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog_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/swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.o -index-unit-output-path /swift-hyperloglog.build/Debug-android-aarch64/HyperLogLog-t.build/Objects-normal/aarch64/HyperLogLog.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 android