Swift Package Index

Build Information

Failed to build Swiftwood, reference 0.3.3 (23841a), with Swift 6.4 for Wasm on 18 Sep 2026 21:14:29 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/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: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/KnowMeGit/Swiftwood.git
Reference: 0.3.3
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/KnowMeGit/Swiftwood
 * tag               0.3.3      -> FETCH_HEAD
HEAD is now at 23841ac (refactor) update readme with fixed setup example
Cloned https://github.com/KnowMeGit/Swiftwood.git
Revision (git rev-parse @):
23841acf2243a622559d34bdf79959a98b86f344
SUCCESS checkout https://github.com/KnowMeGit/Swiftwood.git at 0.3.3
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/KnowMeGit/Swiftwood.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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
Building for debugging...
[Planning deferred tasks]
[26 / 34] Swiftwood
[31 / 34] Swiftwood
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/Swiftwood/FilesDestination.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile FilesDestination.swift
/host/spi-builder-workspace/Sources/Swiftwood/FilesDestination.swift:81:17: error: 'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported
79 | 			let options: Data.WritingOptions
80 | 			if #available(macOS 11.0, *) {
81 | 				options = [.atomic, .completeFileProtectionUnlessOpen]
   |                 `- error: 'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported
82 | 			} else {
83 | 				options = [.atomic]
FoundationEssentials.Data.WritingOptions.atomic:4:23: note: 'atomic' has been explicitly marked unavailable here
2 |   struct WritingOptions {
3 | @available(*, unavailable, message: "atomic writing is unavailable in WASI because temporary files are not supported")
4 |     public static let atomic: Data.WritingOptions  }
  |                       `- note: 'atomic' has been explicitly marked unavailable here
5 | }
6 |
/host/spi-builder-workspace/Sources/Swiftwood/FilesDestination.swift:83:17: error: 'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported
81 | 				options = [.atomic, .completeFileProtectionUnlessOpen]
82 | 			} else {
83 | 				options = [.atomic]
   |                 `- error: 'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported
84 | 			}
85 | 			#endif
FoundationEssentials.Data.WritingOptions.atomic:4:23: note: 'atomic' has been explicitly marked unavailable here
2 |   struct WritingOptions {
3 | @available(*, unavailable, message: "atomic writing is unavailable in WASI because temporary files are not supported")
4 |     public static let atomic: Data.WritingOptions  }
  |                       `- note: 'atomic' has been explicitly marked unavailable here
5 | }
6 |
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/Swiftwood/CensoredLogItem.swift /host/spi-builder-workspace/Sources/Swiftwood/ConsoleLogDestination.swift -primary-file /host/spi-builder-workspace/Sources/Swiftwood/FilesDestination.swift /host/spi-builder-workspace/Sources/Swiftwood/LogCategory.swift /host/spi-builder-workspace/Sources/Swiftwood/LogEntryEncoder.swift /host/spi-builder-workspace/Sources/Swiftwood/Swiftwood.swift /host/spi-builder-workspace/Sources/Swiftwood/SwiftwoodDestination.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.dia -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 5 -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/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Swiftwood -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/Swiftwood_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/Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.o -index-unit-output-path /Swiftwood.build/Debug-webassembly-wasm32/Swiftwood-t.build/Objects-normal/wasm32/FilesDestination.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm