Swift Package Index

Build Information

Failed to build swift-hyperloglog, reference main (dd6f87), with Swift 6.3 for Android on 16 Apr 2026 09:03:29 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/t089/swift-hyperloglog.git
Reference: main
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
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at dd6f874 add SPI shields in readme
Cloned https://github.com/t089/swift-hyperloglog.git
Revision (git rev-parse @):
dd6f874a69b83a4cc93a868a7d8fb65bc2313406
SUCCESS checkout https://github.com/t089/swift-hyperloglog.git at main
========================================
Build
========================================
Selected platform:         android
Swift version:             6.3
Building package at path:  $PWD
https://github.com/t089/swift-hyperloglog.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:9008270ea37a55e78725e6225015adb5eff8582da520c5232bf0499f32c36dc4
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--4F562202D5529B1.txt
[3/4] Emitting module HyperLogLog
[4/4] Compiling HyperLogLog 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 | }
BUILD FAILURE 6.3 android