Build Information
Failed to build modbus2mqtt, reference 2.7.5 (8016cd), with Swift 6.1 for Android on 24 Apr 2026 17:01:02 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/jollyjinx/modbus-2-mqtt-bridge.git
Reference: 2.7.5
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/jollyjinx/modbus-2-mqtt-bridge
* tag 2.7.5 -> FETCH_HEAD
HEAD is now at 8016cd4 Bump SwiftLibModbus to 2.1.2
Cloned https://github.com/jollyjinx/modbus-2-mqtt-bridge.git
Revision (git rev-parse @):
8016cd4ce86b2350b79996a80e18a9038c9dce10
SUCCESS checkout https://github.com/jollyjinx/modbus-2-mqtt-bridge.git at 2.7.5
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Build
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Selected platform: android
Swift version: 6.1
Building package at path: $PWD
https://github.com/jollyjinx/modbus-2-mqtt-bridge.git
https://github.com/jollyjinx/modbus-2-mqtt-bridge.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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:d37fe7b8fba27dae59fb1d9d7dfa86b38b41ffb3975924aad6f05cb4cc3de131
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.1-latest
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.3.0 but the installed version is 6.1.3
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.3.0 but the installed version is 6.1.3
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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:d37fe7b8fba27dae59fb1d9d7dfa86b38b41ffb3975924aad6f05cb4cc3de131
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.1-latest
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.3.0 but the installed version is 6.1.3
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.3.0 but the installed version is 6.1.3
BUILD FAILURE 6.1 android