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Build Information

Failed to build MetalWaveformKit, reference main (ffabd8), with Swift 6.1 for Android on 30 Sep 2026 16:54:21 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886770-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/masaconm/MetalWaveformKit.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/masaconm/MetalWaveformKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at ffabd8f Add status badges to the READMEs and point the Xcode steps at the 0.1.0 tag
Cloned https://github.com/masaconm/MetalWaveformKit.git
Revision (git rev-parse @):
ffabd8f493dd7ab817edaf9fcf80757832940afe
SUCCESS checkout https://github.com/masaconm/MetalWaveformKit.git at main
========================================
Build
========================================
Selected platform:         android
Swift version:             6.1
Building package at path:  $PWD
https://github.com/masaconm/MetalWaveformKit.git
https://github.com/masaconm/MetalWaveformKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/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 saguaro1/spi-images
Digest: sha256:a7f4f752e160f6cbd9e0c26490aa43ccd5312d524c4c6d77f8b144559b526afa
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
Building for debugging...
[0/7] Write sources
[5/7] Copying Shaders.metal
[6/7] Write swift-version-24593BA9C3E375BF.txt
[8/12] Emitting module BeatGrid
<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
[9/12] Compiling WaveformCore WaveformViewport.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
[10/12] Compiling WaveformCore WaveformAnalysis.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
[11/12] Compiling BeatGrid BeatQuantizer.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
[12/12] Emitting module WaveformCore
<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
[15/22] Compiling WaveformMetal resource_bundle_accessor.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[16/22] Compiling WaveformMetal WaveformVertexGeometry.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[17/22] Compiling WaveformMetal WaveformRenderModels.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[18/22] Compiling WaveformMetal WaveformRenderResources.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[19/22] Compiling WaveformMetal WaveformShaderUniforms.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[20/22] Compiling WaveformMetal WaveformRenderer.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
error: emit-module command failed with exit code 1 (use -v to see invocation)
[21/22] Emitting module WaveformMetal
<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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[22/22] Compiling WaveformMetal PlayheadSampler.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/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1
android-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:a7f4f752e160f6cbd9e0c26490aa43ccd5312d524c4c6d77f8b144559b526afa
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/6] Compiling BeatGrid BeatQuantizer.swift
[3/6] Emitting module BeatGrid
[5/7] Emitting module WaveformCore
[6/7] Compiling WaveformCore WaveformAnalysis.swift
[7/7] Compiling WaveformCore WaveformViewport.swift
[9/16] Compiling WaveformMetal resource_bundle_accessor.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[10/16] Compiling WaveformMetal WaveformShaderUniforms.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[11/16] Compiling WaveformMetal WaveformVertexGeometry.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/16] Emitting module WaveformMetal
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[13/16] Compiling WaveformMetal WaveformRenderResources.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[14/16] Compiling WaveformMetal PlayheadSampler.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[15/16] Compiling WaveformMetal WaveformRenderer.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
[16/16] Compiling WaveformMetal WaveformRenderModels.swift
/host/spi-builder-workspace/Sources/WaveformMetal/WaveformRenderResources.swift:9:8: error: no such module 'Metal'
 7 | //
 8 |
 9 | import Metal
   |        `- error: no such module 'Metal'
10 |
11 | @MainActor
BUILD FAILURE 6.1 android