The Swift Package Index logo.Swift Package Index

Build Information

Failed to build ReactiveSwift, reference master (abcdc2), with Swift 6.4 for Wasm on 20 Sep 2026 00:54:37 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/Moya/ReactiveSwift.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/Moya/ReactiveSwift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at abcdc22 SignalProducer: avoid recursive start of a sequence of producers (#734)
Submodule path 'Carthage/Checkouts/Nimble': checked out 'f8657642dfdec9973efc79cc68bcef43a653a2bc'
Submodule path 'Carthage/Checkouts/Quick': checked out '0b4ed6c706dd0cce923b5019a605a9bcc6b1b600'
Submodule path 'Carthage/Checkouts/Quick/Externals/Nimble': checked out 'a27c5186ce2d65f60d1237660b2509df3eb29023'
Submodule path 'Carthage/Checkouts/xcconfigs': checked out 'bb795558a76e5daf3688500055bbcfe243bffa8d'
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/jspahrsummers/xcconfigs.git) registered for path 'Carthage/Checkouts/xcconfigs'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Nimble'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick/Externals/Nimble'...
Cloned https://github.com/Moya/ReactiveSwift.git
Revision (git rev-parse @):
abcdc22fecdef777eaf4dda5cd4b410e24aceae7
SUCCESS checkout https://github.com/Moya/ReactiveSwift.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Moya/ReactiveSwift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-2":/host -w "$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/Quick/Quick.git
Fetching https://github.com/Quick/Nimble.git
[1/14925] Fetching quick
[14926/34911] Fetching quick, nimble
Fetched https://github.com/Quick/Quick.git (1.03s)
Fetched https://github.com/Quick/Nimble.git (1.04s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.2.1 (1.24s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.1.2 (0.17s)
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.1.2
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.2.1
Building for debugging...
[Planning deferred tasks]
[27 / 35] ReactiveSwift
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/Action.swift:1:8: error: no such module 'Dispatch'
  1 | import Dispatch
    |        `- error: no such module 'Dispatch'
  2 | import Foundation
  3 |
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Action.swift /host/spi-builder-workspace/Sources/Atomic.swift /host/spi-builder-workspace/Sources/Bag.swift /host/spi-builder-workspace/Sources/Deprecations+Removals.swift /host/spi-builder-workspace/Sources/Disposable.swift /host/spi-builder-workspace/Sources/Event.swift /host/spi-builder-workspace/Sources/EventLogger.swift /host/spi-builder-workspace/Sources/Flatten.swift /host/spi-builder-workspace/Sources/FoundationExtensions.swift /host/spi-builder-workspace/Sources/Lifetime.swift /host/spi-builder-workspace/Sources/Observer.swift /host/spi-builder-workspace/Sources/Optional.swift /host/spi-builder-workspace/Sources/Property.swift /host/spi-builder-workspace/Sources/Reactive.swift /host/spi-builder-workspace/Sources/ResultExtensions.swift /host/spi-builder-workspace/Sources/Scheduler.swift /host/spi-builder-workspace/Sources/Signal.swift /host/spi-builder-workspace/Sources/SignalProducer.swift /host/spi-builder-workspace/Sources/UnidirectionalBinding.swift /host/spi-builder-workspace/Sources/UninhabitedTypeGuards.swift /host/spi-builder-workspace/Sources/ValidatingProperty.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 -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/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ReactiveSwift -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift_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/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm