Build Information
Failed to build USearch, reference v2.26.6 (a985f7), with Swift 6.4 for Android on 27 Oct 2026 19:39:15 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886770-0":/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
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RunAll
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Builder version: 5.1.3
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/unum-cloud/usearch.git
Reference: v2.26.6
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/unum-cloud/usearch
* tag v2.26.6 -> FETCH_HEAD
HEAD is now at a985f77 Release: v2.26.6 [skip ci] ### Patch
Submodule path 'numkong': checked out '254198d3cc1e9fbbfc194484d20cc9767dd8a676'
Submodule path 'stringzilla': checked out '30d3e2129654d8269b3f66726414f9694c834e25'
Submodule 'numkong' (https://github.com/ashvardanian/NumKong) registered for path 'numkong'
Submodule 'stringzilla' (https://github.com/ashvardanian/stringzilla) registered for path 'stringzilla'
Cloning into '/host/spi-builder-workspace/numkong'...
Cloning into '/host/spi-builder-workspace/stringzilla'...
Cloned https://github.com/unum-cloud/usearch.git
Revision (git rev-parse @):
a985f77553d2d58d5ef1516eafaae81480bb3c30
SUCCESS checkout https://github.com/unum-cloud/usearch.git at v2.26.6
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Build
========================================
Selected platform: android
Swift version: 6.4
Building package at path: $PWD
https://github.com/unum-cloud/usearch.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-0":/host -w "$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: sha256:1ec638249ee9496bfd8413990a8663326bfd4883adb2b1d6b616fd753c8ff99b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Fetching https://github.com/ashvardanian/NumKong
[1/37020] Fetching numkong
Fetched https://github.com/ashvardanian/NumKong (2.27s)
Computing version for https://github.com/ashvardanian/NumKong
Computed https://github.com/ashvardanian/NumKong at 7.8.6 (2.42s)
Creating working copy for https://github.com/ashvardanian/NumKong
Working copy of https://github.com/ashvardanian/NumKong resolved at 7.8.6
warning: 'spi-builder-workspace': found 4 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/swift/README.md
/host/spi-builder-workspace/swift/USearchIndex+Sugar.swift
/host/spi-builder-workspace/swift/USearchIndex.swift
/host/spi-builder-workspace/swift/Util.swift
Building for debugging...
[Pre-planning 1 / 156]
[33 / 61] CNumKongDispatch
[37 / 61] CNumKongDispatch
[39 / 61] CNumKongDispatch
[41 / 61] CNumKongDispatch
[42 / 61] CNumKongDispatch
[45 / 61] CNumKongDispatch
[47 / 61] CNumKongDispatch
[49 / 61] CNumKongDispatch
[50 / 61] CNumKongDispatch
[53 / 66] CNumKongDispatch
[55 / 66] CNumKongDispatch
[56 / 66] CNumKongDispatch
[57 / 66] USearch
[62 / 66] USearchC
[63 / 66] USearch
error: Build input file cannot be found: '/host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64/CNumKong.o'. Did you forget to declare this file as an output of a script phase or custom build rule which produces it?
error: Libtool /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64/libUSearch.a normal failed with a nonzero exit code. Command line: cd /host/spi-builder-workspace
/root/.local/share/swiftly/toolchains/6.4.0/usr/bin/llvm-ar rcs /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64/libUSearch.a @/host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-android-aarch64/USearch-product-p.build/Objects-normal/aarch64/USearch.LinkFileList
error: Build failed
BUILD FAILURE 6.4 android