Swift Package IndexBuild Information
Failed to build execute, reference master (41d351), with Swift 6.3 for Android on 18 Apr 2026 18:47:56 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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>&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/swift-cli/execute.git
Reference: master
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/swift-cli/execute
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 41d3515 Merge branch 'develop'
Cloned https://github.com/swift-cli/execute.git
Revision (git rev-parse @):
41d3515550531fa06ea1795745634427c3605781
SUCCESS checkout https://github.com/swift-cli/execute.git at master
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Build
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Selected platform: android
Swift version: 6.3
Building package at path: $PWD
https://github.com/swift-cli/execute.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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
[3/10] Compiling Execute Command.swift
[4/10] Compiling Execute Shell.swift
[5/10] Compiling Execute ShCommand.swift
[6/10] Compiling Execute Executor.swift
[7/10] Compiling Execute FileHandle+DataHandler.swift
/host/spi-builder-workspace/Sources/Execute/DataHandler/FileHandle+DataHandler.swift:33:12: error: cannot find 'lseek' in scope
31 | /// - Parameter data: The data to be appended.
32 | public func handle(_ data: Data) {
33 | if lseek(fileDescriptor, 0, SEEK_CUR) != -1 {
| `- error: cannot find 'lseek' in scope
34 | seekToEndOfFile()
35 | }
[8/10] Compiling Execute DataHandler.swift
[9/10] Emitting module Execute
/host/spi-builder-workspace/Sources/Execute/ProcessOperation.swift:30:12: warning: class 'ProcessOperation' must restate inherited '@unchecked Sendable' conformance
28 | /// An operation that manages the concurrent execution of
29 | /// [Process](https://developer.apple.com/documentation/foundation/process).
30 | open class ProcessOperation: Operation {
| `- warning: class 'ProcessOperation' must restate inherited '@unchecked Sendable' conformance
31 |
32 | /// The process execution result.
[10/10] Compiling Execute ProcessOperation.swift
/host/spi-builder-workspace/Sources/Execute/ProcessOperation.swift:30:12: warning: class 'ProcessOperation' must restate inherited '@unchecked Sendable' conformance
28 | /// An operation that manages the concurrent execution of
29 | /// [Process](https://developer.apple.com/documentation/foundation/process).
30 | open class ProcessOperation: Operation {
| `- warning: class 'ProcessOperation' must restate inherited '@unchecked Sendable' conformance
31 |
32 | /// The process execution result.
/host/spi-builder-workspace/Sources/Execute/ProcessOperation.swift:63:17: warning: reference to captured var 'self' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
61 | standardOutputPipe.fileHandleForReading.readabilityHandler = { [weak self] fileHandle in
62 | dispatchQueue.async {
63 | self?.standardOutputDataHandler.handle(fileHandle.availableData)
| `- warning: reference to captured var 'self' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
64 | }
65 | }
/host/spi-builder-workspace/Sources/Execute/ProcessOperation.swift:71:17: warning: reference to captured var 'self' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
69 | standardErrorPipe.fileHandleForReading.readabilityHandler = { [weak self] fileHandle in
70 | dispatchQueue.async {
71 | self?.standardErrorDataHandler.handle(fileHandle.availableData)
| `- warning: reference to captured var 'self' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
72 | }
73 | }
[#SendableClosureCaptures]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-closure-captures>
BUILD FAILURE 6.3 android