Swift Package IndexBuild Information
Failed to build XcodeProject, reference master (841fad), with Swift 6.4 for Wasm on 16 Sep 2026 11:26:17 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/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>&1Build Log
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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/g-off/xcodeproject.git
Reference: master
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/g-off/xcodeproject
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 841fad7 Merge pull request #12 from g-Off/fix-version-parsing
Cloned https://github.com/g-off/xcodeproject.git
Revision (git rev-parse @):
841fad77b960852b432b79b60173fddc8e319fb7
SUCCESS checkout https://github.com/g-off/xcodeproject.git at master
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Build
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Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/g-off/xcodeproject.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$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/g-Off/ObjectCoder.git
Fetching https://github.com/mxcl/Version.git
[1/33] Fetching objectcoder
[34/344] Fetching objectcoder, version
Fetched https://github.com/g-Off/ObjectCoder.git (0.88s)
Fetched https://github.com/mxcl/Version.git (0.88s)
Computing version for https://github.com/g-Off/ObjectCoder.git
Computed https://github.com/g-Off/ObjectCoder.git at 0.1.0 (1.07s)
Computing version for https://github.com/mxcl/Version.git
Computed https://github.com/mxcl/Version.git at 1.2.0 (1.03s)
Creating working copy for https://github.com/g-Off/ObjectCoder.git
Working copy of https://github.com/g-Off/ObjectCoder.git resolved at 0.1.0
Creating working copy for https://github.com/mxcl/Version.git
Working copy of https://github.com/mxcl/Version.git resolved at 1.2.0
Building for debugging...
[Pre-planning 1 / 126]
[38 / 66] ObjectCoder
[40 / 66] Version
[51 / 66] ObjectCoder-product
[52 / 66] XcodeProject
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+KeyedContainer.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile ObjectEncoder+KeyedContainer.swift
/host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+KeyedContainer.swift:31:12: [1;31merror: [1;39mcannot assign through subscript: subscript is get-only[0;0m
[0;36m29 |[0;0m
[0;36m30 |[0;0m mutating func encodeNil(forKey key: Key) throws {
[0;36m31 |[0;0m [4;39mcontainer[_converted(key)][0;0m = encoder.boxer.encodedNull(encoder)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot assign through subscript: subscript is get-only[0;0m
[0;36m32 |[0;0m }
[0;36m33 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/AnyCodingKey.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Decoder/Container/KeyedContainer.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Decoder/Container/UnkeyedContainer.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Decoder/_NSObjectDecoder+Unboxing.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Decoder/_NSObjectDecoder.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+Boxing.swift -primary-file /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+KeyedContainer.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+SingleValueContainer.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/Container/ObjectEncoder+UnkeyedContainer.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/EncodingStorage.swift /host/spi-builder-workspace/.build/checkouts/ObjectCoder/Sources/ObjectCoder/Encoder/ObjectEncoder.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.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 -suppress-warnings -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/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ObjectCoder -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectCoder_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/ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.o -index-unit-output-path /ObjectCoder.build/Debug-webassembly-wasm32/ObjectCoder-t.build/Objects-normal/wasm32/ObjectEncoder+KeyedContainer.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm