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Build Information

Failed to build FlockKit, reference main (1a7e0b), with Swift 6.1 for Android on 11 Dec 2025 14:56:42 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/finestructure/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/avnerbarr/FlockKit.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/avnerbarr/FlockKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 1a7e0b0 gendocs
Cloned https://github.com/avnerbarr/FlockKit.git
Revision (git rev-parse @):
1a7e0b08db334259b3cd1379aea7b30b2ff5d342
SUCCESS checkout https://github.com/avnerbarr/FlockKit.git at main
========================================
Build
========================================
Selected platform:         android
Swift version:             6.1
Building package at path:  $PWD
https://github.com/avnerbarr/FlockKit.git
https://github.com/avnerbarr/FlockKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-docc-plugin"
    }
  ],
  "manifest_display_name" : "FlockKit",
  "name" : "FlockKit",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "FlockKit",
      "targets" : [
        "FlockKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "LockTestHelper",
      "targets" : [
        "LockTestHelper"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LockTestHelper",
      "module_type" : "SwiftTarget",
      "name" : "LockTestHelper",
      "path" : "Sources/LockTestHelper",
      "product_memberships" : [
        "LockTestHelper"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "FlockKit"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "FlockKitTests",
      "module_type" : "SwiftTarget",
      "name" : "FlockKitTests",
      "path" : "Tests/FlockKitTests",
      "sources" : [
        "FlockKitTests.swift"
      ],
      "target_dependencies" : [
        "FlockKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "FlockKit",
      "module_type" : "SwiftTarget",
      "name" : "FlockKit",
      "path" : "Sources/FlockKit",
      "product_memberships" : [
        "FlockKit",
        "LockTestHelper"
      ],
      "sources" : [
        "Errno.swift",
        "FlockKit.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
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/finestructure/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 finestructure/spi-images
Digest: sha256:91d018f1076d6a900d71818287e1b2618039c67008f0564a121787f87e1ae735
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:android-6.1-latest
Fetching https://github.com/apple/swift-docc-plugin
[1/2158] Fetching swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin from cache (0.69s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.5 (2.93s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3594] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.85s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.70s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.5
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/9] Write sources
[4/9] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/12] Emitting module FlockKit
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
[7/12] Compiling FlockKit Errno.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
[8/12] Compiling FlockKit FlockKit.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
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/finestructure/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1
android-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:91d018f1076d6a900d71818287e1b2618039c67008f0564a121787f87e1ae735
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:android-6.1-latest
[0/1] Planning build
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/7] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/10] Emitting module FlockKit
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
[5/10] Compiling FlockKit Errno.swift
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
[6/10] Compiling FlockKit FlockKit.swift
/host/spi-builder-workspace/Sources/FlockKit/FlockKit.swift:6:8: error: no such module 'Darwin'
  4 | import Glibc
  5 | #else
  6 | import Darwin
    |        `- error: no such module 'Darwin'
  7 | #endif
  8 |
BUILD FAILURE 6.1 android