Swift Package Index

Build Information

Failed to build Cast, reference v0.1.0 (4243d1), with Swift 6.4 for Wasm on 25 Sep 2026 10:18:46 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jaylann/Cast.git
Reference: v0.1.0
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/jaylann/Cast
 * tag               v0.1.0     -> FETCH_HEAD
HEAD is now at 4243d1b test(ci): skip MLX runtime tests on CI; pin README install to v0.1.0 (#76)
Submodule path 'Sources/CMLXStructured/xgrammar': checked out 'd68df627908376f3ed5e0a989395a03cc41894cd'
Submodule path 'Sources/CMLXStructured/xgrammar/3rdparty/cpptrace': checked out '6689d14c203eed390ae7bb64f56a983cfd7dff9c'
Submodule path 'Sources/CMLXStructured/xgrammar/3rdparty/dlpack': checked out 'bbd2f4d32427e548797929af08cfe2a9cbb3cf12'
Submodule path 'Sources/CMLXStructured/xgrammar/3rdparty/googletest': checked out 'df1544bcee0c7ce35cd5ea0b3eb8cc81855a4140'
Submodule 'Sources/CMLXStructured/xgrammar' (https://github.com/mlc-ai/xgrammar) registered for path 'Sources/CMLXStructured/xgrammar'
Cloning into '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar'...
Submodule '3rdparty/cpptrace' (https://github.com/jeremy-rifkin/cpptrace.git) registered for path 'Sources/CMLXStructured/xgrammar/3rdparty/cpptrace'
Submodule '3rdparty/dlpack' (https://github.com/dmlc/dlpack.git) registered for path 'Sources/CMLXStructured/xgrammar/3rdparty/dlpack'
Submodule '3rdparty/googletest' (https://github.com/google/googletest.git) registered for path 'Sources/CMLXStructured/xgrammar/3rdparty/googletest'
Cloning into '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar/3rdparty/cpptrace'...
Cloning into '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar/3rdparty/dlpack'...
Cloning into '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar/3rdparty/googletest'...
Cloned https://github.com/jaylann/Cast.git
Revision (git rev-parse @):
4243d1bdb37adc78f84f3157111fe6bfed7282c2
SUCCESS checkout https://github.com/jaylann/Cast.git at v0.1.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/jaylann/Cast.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$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
Fetching https://github.com/petrukha-ivan/swift-json-schema.git
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Fetching https://github.com/huggingface/swift-transformers.git
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Fetched https://github.com/swiftlang/swift-syntax.git (3.35s)
Computing version for https://github.com/petrukha-ivan/swift-json-schema.git
Computed https://github.com/petrukha-ivan/swift-json-schema.git at 2.0.2 (3.53s)
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Computed https://github.com/swiftlang/swift-syntax.git at 600.0.1 (1.15s)
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Computed https://github.com/ml-explore/mlx-swift-lm.git at 2.31.3 (0.20s)
Computing version for https://github.com/huggingface/swift-transformers.git
Computed https://github.com/huggingface/swift-transformers.git at 1.2.1 (0.17s)
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Fetched https://github.com/apple/swift-crypto.git (1.18s)
Computing version for https://github.com/ibireme/yyjson.git
Computed https://github.com/ibireme/yyjson.git at 0.12.0 (1.36s)
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Computed https://github.com/ml-explore/mlx-swift.git at 0.31.6 (0.24s)
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Computing version for https://github.com/apple/swift-numerics
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Computed https://github.com/apple/swift-collections.git at 1.7.0 (0.29s)
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Computed https://github.com/swiftlang/swift-docc-plugin at 1.5.0 (0.19s)
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Computed https://github.com/huggingface/swift-jinja.git at 2.5.1 (0.14s)
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Computed https://github.com/apple/swift-argument-parser at 1.8.2 (0.16s)
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Computed https://github.com/apple/swift-crypto.git at 4.5.2 (1.13s)
Fetching https://github.com/apple/swift-asn1.git
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Fetched https://github.com/apple/swift-asn1.git (1.08s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.3 (1.30s)
Creating working copy for https://github.com/mattt/EventSource.git
Working copy of https://github.com/mattt/EventSource.git resolved at 1.5.1
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Working copy of https://github.com/ml-explore/mlx-swift.git resolved at 0.31.6
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Working copy of https://github.com/huggingface/swift-transformers.git resolved at 1.2.1
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Working copy of https://github.com/apple/swift-argument-parser resolved at 1.8.2
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Working copy of https://github.com/ibireme/yyjson.git resolved at 0.12.0
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Working copy of https://github.com/petrukha-ivan/swift-json-schema.git resolved at 2.0.2
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Working copy of https://github.com/apple/swift-numerics resolved at 1.1.1
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Working copy of https://github.com/ml-explore/mlx-swift-lm.git resolved at 2.31.3
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Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.5.0
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Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.3
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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
warning: 'spi-builder-workspace': Invalid Exclude '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar/cpp/nanobind': File not found.
warning: 'spi-builder-workspace': dependency 'swift-transformers' is not used by any target
warning: 'spi-builder-workspace': Invalid Exclude '/host/spi-builder-workspace/Sources/CMLXStructured/xgrammar/cpp/nanobind': File not found.
warning: 'spi-builder-workspace': dependency 'swift-transformers' is not used by any target
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Sources/CastMacros/CLAUDE.md
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Sources/MLXStructured/CLAUDE.md
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 1803]
[Planning 1191 / 1803]
[Planning deferred tasks]
[Constructing 583 / 4557]
[Starting]
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/arg_reduce.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/conv.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/gemv.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/layer_norm.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/random.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/rms_norm.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/rope.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/scaled_dot_product_attention.metal' of type 'sourcecode.metal' for architecture 'wasm32'
warning: no rule to process file '/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/steel_attention.metal' of type 'sourcecode.metal' for architecture 'wasm32'
[132 / 1386] RealModule
[303 / 1405] _SwiftSyntaxCShims
[321 / 1405] RealModule
[322 / 1405] SwiftSyntax600
[332 / 1406] SwiftSyntax600
[346 / 1436] SwiftSyntax510
[352 / 1436] ArgumentParserToolInfo
[357 / 1437] InternalCollectionsUtilities
[360 / 1437] RealModule
[361 / 1437] InternalCollectionsUtilities
[364 / 1437] InternalCollectionsUtilities
[365 / 1437] EventSource
[365 / 1437] InternalCollectionsUtilities
[368 / 1437] InternalCollectionsUtilities
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:346:25: error: cannot find type 'URLRequest' in scope
344 |
345 |     /// The request used for the event source connection.
346 |     public let request: URLRequest
    |                         `- error: cannot find type 'URLRequest' in scope
347 |
348 |     /// The URL session for the event source connection.
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:349:26: error: 'URLSession' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
347 |
348 |     /// The URL session for the event source connection.
349 |     private let session: URLSession
    |                          `- error: 'URLSession' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
350 |
351 |     /// The task managing the connection loop.
Foundation.URLSession:2:18: note: 'URLSession' has been explicitly marked unavailable here
1 | @available(*, unavailable, message: "This type has moved to the FoundationNetworking module. Import that module to use it.")
2 | public typealias URLSession = AnyObject
  |                  `- note: 'URLSession' has been explicitly marked unavailable here
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:498:18: error: cannot find type 'URLRequest' in scope
496 |     ///                    Defaults to `.default`.
497 |     public init(
498 |         request: URLRequest,
    |                  `- error: cannot find type 'URLRequest' in scope
499 |         configuration: URLSessionConfiguration = .default
500 |     ) {
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:499:24: error: 'URLSessionConfiguration' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
497 |     public init(
498 |         request: URLRequest,
499 |         configuration: URLSessionConfiguration = .default
    |                        `- error: 'URLSessionConfiguration' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
500 |     ) {
501 |         self.session = URLSession(configuration: configuration)
Foundation.URLSessionConfiguration:2:18: note: 'URLSessionConfiguration' has been explicitly marked unavailable here
1 | @available(*, unavailable, message: "This type has moved to the FoundationNetworking module. Import that module to use it.")
2 | public typealias URLSessionConfiguration = AnyObject
  |                  `- note: 'URLSessionConfiguration' has been explicitly marked unavailable here
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:499:51: error: type 'URLSessionConfiguration' (aka 'AnyObject') has no member 'default'
497 |     public init(
498 |         request: URLRequest,
499 |         configuration: URLSessionConfiguration = .default
    |                                                   `- error: type 'URLSessionConfiguration' (aka 'AnyObject') has no member 'default'
500 |     ) {
501 |         self.session = URLSession(configuration: configuration)
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:499:51: error: value of type '_' expected to be instance of class or class-constrained type
497 |     public init(
498 |         request: URLRequest,
499 |         configuration: URLSessionConfiguration = .default
    |                                                   `- error: value of type '_' expected to be instance of class or class-constrained type
500 |     ) {
501 |         self.session = URLSession(configuration: configuration)
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:740:55: error: 'HTTPURLResponse' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
738 |     #endif
739 |
740 |     private func validateHTTPResponse(_ httpResponse: HTTPURLResponse) throws {
    |                                                       `- error: 'HTTPURLResponse' is unavailable: This type has moved to the FoundationNetworking module. Import that module to use it.
741 |         let status = httpResponse.statusCode
742 |         if status != 200 {
Foundation.HTTPURLResponse:2:18: note: 'HTTPURLResponse' has been explicitly marked unavailable here
1 | @available(*, unavailable, message: "This type has moved to the FoundationNetworking module. Import that module to use it.")
2 | public typealias HTTPURLResponse = AnyObject
  |                  `- note: 'HTTPURLResponse' has been explicitly marked unavailable here
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:482:23: error: cannot find 'URLRequest' in scope
480 |     /// - Parameter url: The URL to open the SSE connection to.
481 |     public init(url: URL) {
482 |         var request = URLRequest(url: url)
    |                       `- error: cannot find 'URLRequest' in scope
483 |         request.setValue("text/event-stream", forHTTPHeaderField: "Accept")
484 |         request.setValue("no-cache", forHTTPHeaderField: "Cache-Control")
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:485:18: error: incorrect argument label in call (have 'request:', expected 'url:')
483 |         request.setValue("text/event-stream", forHTTPHeaderField: "Accept")
484 |         request.setValue("no-cache", forHTTPHeaderField: "Cache-Control")
485 |         self.init(request: request)
    |                  `- error: incorrect argument label in call (have 'request:', expected 'url:')
486 |     }
487 |
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:501:24: error: value of type '_' expected to be an instance of a class or class-constrained type in assignment
499 |         configuration: URLSessionConfiguration = .default
500 |     ) {
501 |         self.session = URLSession(configuration: configuration)
    |                        `- error: value of type '_' expected to be an instance of a class or class-constrained type in assignment
502 |         self.request = request
503 |         Task { [weak self] in
/host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift:501:24: error: 'URLSession' (aka 'AnyObject') cannot be constructed because it has no accessible initializers
499 |         configuration: URLSessionConfiguration = .default
500 |     ) {
501 |         self.session = URLSession(configuration: configuration)
    |                        `- error: 'URLSession' (aka 'AnyObject') cannot be constructed because it has no accessible initializers
502 |         self.request = request
503 |         Task { [weak self] in
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/AsyncEventsSequence.swift /host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/AsyncSequence+Events.swift /host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource+AsyncHTTPClient.swift /host/spi-builder-workspace/.build/checkouts/EventSource/Sources/EventSource/EventSource.swift -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 -suppress-warnings -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 -user-module-version 1.5.1 -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/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name EventSource -package-name eventsource -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/EventSource_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 -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/Modules/EventSource.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/Modules/EventSource.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/EventSource-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/EventSource-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/EventSource-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/EventSource.build/Debug-webassembly-wasm32/EventSource-t.build/Objects-normal/wasm32/Modules/EventSource.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm