NCCCoding – Build Information – Swift Package Index

Build Information

Failed to build NCCCoding, reference master (0f663c), with Swift 6.4 for Wasm on 14 Oct 2026 01:44:12 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344849-0":/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-6.4.0-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/drewster99/NCCCoding.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/drewster99/NCCCoding
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 0f663c7 1.1.0: public Codable helpers, LocalizedError, MIT license
Cloned https://github.com/drewster99/NCCCoding.git
Revision (git rev-parse @):
0f663c79af2d8b068f50290e1d69f2923f3efeca
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/drewster99/NCCCoding.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/drewster99/NCCCoding.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-0":/host -w "$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-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:d8610b27563fbed4643ddaec8e9397319e3b3e1372fc54686db2dacb952c1b8f
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Planning deferred tasks]
[20 / 28] NCCCoding
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/NCCCoding/NCCCoding.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile NCCCoding.swift
/host/spi-builder-workspace/Sources/NCCCoding/NCCCoding.swift:187:47: [1;31merror: [1;39m'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported[0;0m
[0;36m185 |[0;0m         do {
[0;36m186 |[0;0m             let data = try encoder.encode(value)
[0;36m187 |[0;0m             try data.write(to: url, options: .[4;39matomic[0;0m)
    [0;36m|[0;0m                                               `- [1;31merror: [1;39m'atomic' is unavailable: atomic writing is unavailable in WASI because temporary files are not supported[0;0m
[0;36m188 |[0;0m             return nil
[0;36m189 |[0;0m         } catch {
FoundationEssentials.Data.WritingOptions.atomic:4:23: [1;39mnote: [1;39m'atomic' has been explicitly marked unavailable here[0;0m
[0;36m2 |[0;0m   struct WritingOptions {
[0;36m3 |[0;0m @available(*, unavailable, message: "atomic writing is unavailable in WASI because temporary files are not supported")
[0;36m4 |[0;0m     public static let atomic: Data.WritingOptions  }
  [0;36m|[0;0m                       `- [1;39mnote: [1;39m'atomic' has been explicitly marked unavailable here[0;0m
[0;36m5 |[0;0m }
[0;36m6 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -c -primary-file /host/spi-builder-workspace/Sources/NCCCoding/NCCCoding.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.dia -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name NCCCoding -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding_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/NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.o -index-unit-output-path /NCCCoding.build/Debug-webassembly-wasm32/NCCCoding-t.build/Objects-normal/wasm32/NCCCoding.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm