Swift Package IndexBuild Information
Failed to build MetalSupport, reference 1.0.6 (74c037), with Swift 6.4 for Wasm on 3 Oct 2026 16:45:42 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-2":/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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/schwa/MetalSupport.git
Reference: 1.0.6
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/schwa/MetalSupport
* tag 1.0.6 -> FETCH_HEAD
HEAD is now at 74c0378 Add MTLDevice capability checks: isParavirtual, supportsMetal4, supportsMeshShaders
Cloned https://github.com/schwa/MetalSupport.git
Revision (git rev-parse @):
74c03788c9428544ccea69bc6781cdc9d2b2da81
SUCCESS checkout https://github.com/schwa/MetalSupport.git at 1.0.6
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Build
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Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/schwa/MetalSupport.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/apple/swift-collections.git
[1/28538] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git (1.59s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.7.1 (2.03s)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.7.1
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 125]
[Planning deferred tasks]
[5 / 49]
[28 / 50] InternalCollectionsUtilities
[37 / 59] InternalCollectionsUtilities
[38 / 59] InternalCollectionsUtilities
[43 / 61] OrderedCollections
[45 / 69] OrderedCollections
[47 / 69] OrderedCollections
[48 / 69] OrderedCollections
[50 / 69] OrderedCollections
[51 / 69] OrderedCollections
[52 / 70] OrderedCollections
[53 / 70] InternalCollectionsUtilities
[55 / 70] OrderedCollections
[55 / 71] OrderedCollections
[64 / 73] MetalSupport
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/MetalSupport/MTLFunction+Extensions.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile MTLFunction+Extensions.swift
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/MetalSupport/MTLGeometry+Extensions.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile MTLGeometry+Extensions.swift
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/MetalSupport/MTLIndexType+Extensions.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile MTLIndexType+Extensions.swift
/host/spi-builder-workspace/Sources/MetalSupport/DebugGroup.swift:1:8: [1;31merror: [1;39mno such module 'Metal'[0;0m
[0;36m1 |[0;0m import Metal
[0;36m|[0;0m `- [1;31merror: [1;39mno such module 'Metal'[0;0m
[0;36m2 |[0;0m
[0;36m3 |[0;0m public extension MTLCaptureManager {
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/MetalSupport/BaseSupport.swift /host/spi-builder-workspace/Sources/MetalSupport/DebugGroup.swift /host/spi-builder-workspace/Sources/MetalSupport/DescriptorInits.swift /host/spi-builder-workspace/Sources/MetalSupport/DrawHelpers.swift /host/spi-builder-workspace/Sources/MetalSupport/Labeled.swift /host/spi-builder-workspace/Sources/MetalSupport/MTKMesh+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLBuffer+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLCommandBuffer+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLCommandBufferDescriptor+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLCommandQueue+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLDevice+Capabilities.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLDevice+Extensions.swift -primary-file /host/spi-builder-workspace/Sources/MetalSupport/MTLFunction+Extensions.swift -primary-file /host/spi-builder-workspace/Sources/MetalSupport/MTLGeometry+Extensions.swift -primary-file /host/spi-builder-workspace/Sources/MetalSupport/MTLIndexType+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLPixelFormat+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLTexture+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLVertexDescriptor+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/MTLVertexFormat+Extensions.swift /host/spi-builder-workspace/Sources/MetalSupport/Metal+SwiftUI.swift /host/spi-builder-workspace/Sources/MetalSupport/MetalSupportError.swift /host/spi-builder-workspace/Sources/MetalSupport/UnsafeBytes.swift /host/spi-builder-workspace/Sources/MetalSupport/VertexDescriptor.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/supplementaryOutputs-21 -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name MetalSupport -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MetalSupport_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLFunction+Extensions.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLGeometry+Extensions.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLIndexType+Extensions.o -index-unit-output-path /MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLFunction+Extensions.o -index-unit-output-path /MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLGeometry+Extensions.o -index-unit-output-path /MetalSupport.build/Debug-webassembly-wasm32/MetalSupport-t.build/Objects-normal/wasm32/MTLIndexType+Extensions.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm