Swift Package Index

Build Information

Failed to build swift-distributed-actors, reference 1.0.0-beta.3 (d816a1), with Swift 6.3 for Android on 21 Apr 2026 02:33:36 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/apple/swift-distributed-actors.git
Reference: 1.0.0-beta.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/apple/swift-distributed-actors
 * tag               1.0.0-beta.3 -> FETCH_HEAD
HEAD is now at d816a10 -test remove known flaky test of unsupported feature (#1079)
Cloned https://github.com/apple/swift-distributed-actors.git
Revision (git rev-parse @):
d816a10b70a6d537b2aa666ff735888b7ba40ab4
SUCCESS checkout https://github.com/apple/swift-distributed-actors.git at 1.0.0-beta.3
========================================
Build
========================================
Selected platform:         android
Swift version:             6.3
Building package at path:  $PWD
https://github.com/apple/swift-distributed-actors.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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
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Building for debugging...
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/host/spi-builder-workspace/Sources/CDistributedActorsMailbox/backtrace_support.c:32:18: error: call to undeclared function 'backtrace'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   32 |     int frames = backtrace(callstack, 128);
      |                  ^
/host/spi-builder-workspace/Sources/CDistributedActorsMailbox/backtrace_support.c:33:13: error: call to undeclared function 'backtrace_symbols'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   33 |     *strs = backtrace_symbols(callstack, frames);
      |             ^
/host/spi-builder-workspace/Sources/CDistributedActorsMailbox/backtrace_support.c:33:11: error: incompatible integer to pointer conversion assigning to 'char **' from 'int' [-Wint-conversion]
   33 |     *strs = backtrace_symbols(callstack, frames);
      |           ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
[20/518] Compiling CDistributedActorsMailbox backtrace_support.c
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[20/518] Compiling CDistributedActorsMailbox c_mpsc_linked_queue.c
[20/518] Write swift-version--4F562202D5529B1.txt
BUILD FAILURE 6.3 android