plug – Build Information – Swift Package Index

Build Information

Failed to build plug, reference main (79d150), with Swift 6.4 for Wasm on 20 Sep 2026 02:54:33 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-2":/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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/lyricalsoul/Plug.git
Reference: main
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/lyricalsoul/Plug
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 79d1503 fix broken test suite, pt. II
Cloned https://github.com/lyricalsoul/Plug.git
Revision (git rev-parse @):
79d1503fbaa6cf565f66a9c4f0f5b89cde55f31b
SUCCESS checkout https://github.com/lyricalsoul/Plug.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/lyricalsoul/Plug.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-2":/host -w "$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-syntax.git
Fetching https://github.com/pointfreeco/swift-macro-testing.git
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-crypto.git
[1/18549] Fetching swift-crypto
[2/19551] Fetching swift-crypto, swift-macro-testing
[1314/21896] Fetching swift-crypto, swift-macro-testing, swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin (0.56s)
[3043/19551] Fetching swift-crypto, swift-macro-testing
[19552/99535] Fetching swift-crypto, swift-macro-testing, swift-syntax
Fetched https://github.com/apple/swift-crypto.git (1.19s)
[10601/80986] Fetching swift-macro-testing, swift-syntax
Fetched https://github.com/pointfreeco/swift-macro-testing.git (2.97s)
Fetched https://github.com/apple/swift-syntax.git (2.99s)
Computing version for https://github.com/apple/swift-syntax.git
Computed https://github.com/apple/swift-syntax.git at 509.1.1 (4.15s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (0.18s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3824] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (0.55s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.77s)
Computing version for https://github.com/pointfreeco/swift-macro-testing.git
Computed https://github.com/pointfreeco/swift-macro-testing.git at 0.7.0 (0.16s)
Fetching https://github.com/pointfreeco/swift-snapshot-testing
[1/16416] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing (1.81s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.19.5 (1.98s)
Fetching https://github.com/pointfreeco/swift-custom-dump
[1/5666] Fetching swift-custom-dump
Fetched https://github.com/pointfreeco/swift-custom-dump (0.60s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.7.3 (0.78s)
Fetching https://github.com/pointfreeco/swift-issue-reporting
[1/6136] Fetching swift-issue-reporting
Fetched https://github.com/pointfreeco/swift-issue-reporting (0.67s)
Computing version for https://github.com/pointfreeco/swift-issue-reporting
Computed https://github.com/pointfreeco/swift-issue-reporting at 2.1.0 (1.76s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 3.15.1 (0.25s)
Fetching https://github.com/apple/swift-asn1.git
[1/1983] Fetching swift-asn1
Fetched https://github.com/apple/swift-asn1.git (0.42s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.3 (0.62s)
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.3
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.7.3
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 3.15.1
Creating working copy for https://github.com/apple/swift-syntax.git
Working copy of https://github.com/apple/swift-syntax.git resolved at 509.1.1
Creating working copy for https://github.com/pointfreeco/swift-issue-reporting
Working copy of https://github.com/pointfreeco/swift-issue-reporting resolved at 2.1.0
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
Creating working copy for https://github.com/pointfreeco/swift-macro-testing.git
Working copy of https://github.com/pointfreeco/swift-macro-testing.git resolved at 0.7.0
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.19.5
warning: 'swift-macro-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /host/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /host/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-snapshot-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /host/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /host/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-macro-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /host/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /host/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-snapshot-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /host/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /host/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
Building for debugging...
[Computing dependencies]
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[634 / 697] SwiftSyntaxMacros
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[709 / 733] SwiftCompilerPlugin
[714 / 734] PlugMacros
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[722 / 738] PlugMacros
[730 / 746] Plug
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/Plug/PluginManager.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile PluginManager.swift
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:103:22: [1;31merror: [1;39mcannot find 'dlopen' in scope[0;0m
[0;36m101 |[0;0m         }
[0;36m102 |[0;0m
[0;36m103 |[0;0m         let handle = [4;39mdlopen[0;0m(path, RTLD_NOW | RTLD_LOCAL)
    [0;36m|[0;0m                      `- [1;31merror: [1;39mcannot find 'dlopen' in scope[0;0m
[0;36m104 |[0;0m         if handle == nil {
[0;36m105 |[0;0m             throw PluginError.unknownError(message: String(cString: dlerror()!))
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:103:35: [1;31merror: [1;39mcannot find 'RTLD_NOW' in scope[0;0m
[0;36m101 |[0;0m         }
[0;36m102 |[0;0m
[0;36m103 |[0;0m         let handle = dlopen(path, [4;39mRTLD_NOW[0;0m | RTLD_LOCAL)
    [0;36m|[0;0m                                   `- [1;31merror: [1;39mcannot find 'RTLD_NOW' in scope[0;0m
[0;36m104 |[0;0m         if handle == nil {
[0;36m105 |[0;0m             throw PluginError.unknownError(message: String(cString: dlerror()!))
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:103:46: [1;31merror: [1;39mcannot find 'RTLD_LOCAL' in scope[0;0m
[0;36m101 |[0;0m         }
[0;36m102 |[0;0m
[0;36m103 |[0;0m         let handle = dlopen(path, RTLD_NOW | [4;39mRTLD_LOCAL[0;0m)
    [0;36m|[0;0m                                              `- [1;31merror: [1;39mcannot find 'RTLD_LOCAL' in scope[0;0m
[0;36m104 |[0;0m         if handle == nil {
[0;36m105 |[0;0m             throw PluginError.unknownError(message: String(cString: dlerror()!))
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:105:69: [1;31merror: [1;39mcannot find 'dlerror' in scope[0;0m
[0;36m103 |[0;0m         let handle = dlopen(path, RTLD_NOW | RTLD_LOCAL)
[0;36m104 |[0;0m         if handle == nil {
[0;36m105 |[0;0m             throw PluginError.unknownError(message: String(cString: [4;39mdlerror[0;0m()!))
    [0;36m|[0;0m                                                                     `- [1;31merror: [1;39mcannot find 'dlerror' in scope[0;0m
[0;36m106 |[0;0m         }
[0;36m107 |[0;0m
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:108:22: [1;31merror: [1;39mcannot find 'dlsym' in scope[0;0m
[0;36m106 |[0;0m         }
[0;36m107 |[0;0m
[0;36m108 |[0;0m         let symbol = [4;39mdlsym[0;0m(handle, PluginManager.initSymbol)
    [0;36m|[0;0m                      `- [1;31merror: [1;39mcannot find 'dlsym' in scope[0;0m
[0;36m109 |[0;0m         if symbol == nil {
[0;36m110 |[0;0m             throw PluginError.loadingSymbolNotFound(sym: PluginManager.initSymbol)
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:113:28: [1;31merror: [1;39mgeneric parameter 'T' could not be inferred[0;0m
[0;36m111 |[0;0m         }
[0;36m112 |[0;0m
[0;36m113 |[0;0m         let initFunction = unsafeBitCast(symbol!, to: InitFunction.self)
    [0;36m|[0;0m                            `- [1;31merror: [1;39mgeneric parameter 'T' could not be inferred[0;0m
[0;36m114 |[0;0m         let pointer = initFunction()
[0;36m115 |[0;0m         let builder: PluginBuilder = Unmanaged<PluginBuilder>.fromOpaque(pointer).takeRetainedValue()
Swift.unsafeBitCast:1:24: [1;39mnote: [1;39min call to function 'unsafeBitCast(_:to:)'[0;0m
[0;36m1 |[0;0m @inlinable public func unsafeBitCast<T, U>(_ x: T, to type: U.Type) -> U
  [0;36m|[0;0m                        `- [1;39mnote: [1;39min call to function 'unsafeBitCast(_:to:)'[0;0m
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:151:35: [1;31merror: [1;39mcannot find 'extensionName' in scope[0;0m
[0;36m149 |[0;0m         let files = try FileManager.default.contentsOfDirectory(atPath: path)
[0;36m150 |[0;0m         for file in files {
[0;36m151 |[0;0m             if file.hasSuffix(".\([4;39mextensionName[0;0m)") {
    [0;36m|[0;0m                                   `- [1;31merror: [1;39mcannot find 'extensionName' in scope[0;0m
[0;36m152 |[0;0m                 try await loadPlugin(path: "\(path)/\(file)", closure: closure)
[0;36m153 |[0;0m             }
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:164:47: [1;31merror: [1;39mcannot find 'extensionName' in scope[0;0m
[0;36m162 |[0;0m     /// - Throws: `PluginError` if the plugin could not be loaded (or if it is already loaded).
[0;36m163 |[0;0m     public func loadPlugin(pathWithoutExtension path: String, closure: ((LoadedPluginBuilder) async -> Void)? = nil) async throws {
[0;36m164 |[0;0m         try await loadPlugin(path: "\(path).\([4;39mextensionName[0;0m)", closure: closure)
    [0;36m|[0;0m                                               `- [1;31merror: [1;39mcannot find 'extensionName' in scope[0;0m
[0;36m165 |[0;0m     }
[0;36m166 |[0;0m
/host/spi-builder-workspace/Sources/Plug/PluginManager.swift:173:13: [1;31merror: [1;39mcannot find 'dlclose' in scope[0;0m
[0;36m171 |[0;0m         if let index = loadedPlugins.firstIndex(where: { closure($0.details) }) {
[0;36m172 |[0;0m             loadedPlugins[index].builder.destroy()
[0;36m173 |[0;0m             [4;39mdlclose[0;0m(loadedPlugins[index].dylibReference)
    [0;36m|[0;0m             `- [1;31merror: [1;39mcannot find 'dlclose' in scope[0;0m
[0;36m174 |[0;0m             loadedPlugins.remove(at: index)
[0;36m175 |[0;0m         }
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/Plug/Macro.swift /host/spi-builder-workspace/Sources/Plug/PluginBuilder.swift /host/spi-builder-workspace/Sources/Plug/PluginDetails+Misc.swift /host/spi-builder-workspace/Sources/Plug/PluginIntegrity.swift /host/spi-builder-workspace/Sources/Plug/PluginInterface.swift -primary-file /host/spi-builder-workspace/Sources/Plug/PluginManager.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.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 -load-plugin-executable /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/PlugMacros\#PlugMacros -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 -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSLShims/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSL/include/module.modulemap -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/checkouts/swift-crypto/Sources/CCryptoBoringSSLShims/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSL/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Plug -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/Plug_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/plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.o -index-unit-output-path /plug.build/Debug-webassembly-wasm32/Plug-t.build/Objects-normal/wasm32/PluginManager.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm