Build Information
Failed to build Willow, reference main (b79d22), with Swift 6.3 for Android on 20 Apr 2026 23:34:09 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Nike-Inc/Willow.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/Nike-Inc/Willow
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at b79d227 Update README.md
Cloned https://github.com/Nike-Inc/Willow.git
Revision (git rev-parse @):
b79d2275c92e36c4706c887e02610a846358fb3b
SUCCESS checkout https://github.com/Nike-Inc/Willow.git at main
========================================
Build
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Selected platform: android
Swift version: 6.3
Building package at path: $PWD
https://github.com/Nike-Inc/Willow.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/9] Emitting module Willow
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[4/9] Compiling Willow LogWriter.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[5/9] Compiling Willow Logger.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[6/9] Compiling Willow LogLevel.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[7/9] Compiling Willow LogModifier.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[8/9] Compiling Willow LogMessage.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
[9/9] Compiling Willow LogFilter.swift
/host/spi-builder-workspace/Source/LogWriter.swift:26:8: error: no such module 'os'
24 |
25 | import Foundation
26 | import os
| `- error: no such module 'os'
27 |
28 | /// The LogWriter protocol defines a single API for writing a log message. The message can be written in any way
BUILD FAILURE 6.3 android