Swift Package IndexBuild Information
Failed to build OpenCombineJS, reference 0.2.0 (e574e4), with Swift 6.3 for Linux on 12 Apr 2026 23:02:08 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/swiftwasm/OpenCombineJS.git
Reference: 0.2.0
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/swiftwasm/OpenCombineJS
* tag 0.2.0 -> FETCH_HEAD
HEAD is now at e574e41 Update CHANGELOG.md
Cloned https://github.com/swiftwasm/OpenCombineJS.git
Revision (git rev-parse @):
e574e418ba468ff5c2d4c499eb56f108aeb4d2ba
SUCCESS checkout https://github.com/swiftwasm/OpenCombineJS.git at 0.2.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/swiftwasm/OpenCombineJS.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Fetching https://github.com/OpenCombine/OpenCombine.git
Fetching https://github.com/swiftwasm/JavaScriptKit.git
[1/8284] Fetching opencombine
Fetched https://github.com/OpenCombine/OpenCombine.git from cache (0.60s)
[1/36545] Fetching javascriptkit
Fetched https://github.com/swiftwasm/JavaScriptKit.git from cache (2.16s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (2.66s)
Computing version for https://github.com/swiftwasm/JavaScriptKit.git
Computed https://github.com/swiftwasm/JavaScriptKit.git at 0.50.2 (0.51s)
Fetching https://github.com/swiftlang/swift-syntax
[1/74967] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (5.95s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 603.0.0 (7.38s)
Creating working copy for https://github.com/OpenCombine/OpenCombine.git
Working copy of https://github.com/OpenCombine/OpenCombine.git resolved at 0.14.0
Creating working copy for https://github.com/swiftwasm/JavaScriptKit.git
Working copy of https://github.com/swiftwasm/JavaScriptKit.git resolved at 0.50.2
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 603.0.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz (0.54s)
[1/1] Compiling plugin BridgeJSCommandPlugin
[2/2] Compiling plugin BridgeJS
[3/3] Compiling plugin PackageToJS
Building for debugging...
[3/20] Compiling _CJavaScriptKit _CJavaScriptKit.c
[4/20] Write sources
[9/20] Compiling COpenCombineHelpers COpenCombineHelpers.cpp
[10/20] Write swift-version-24593BA9C3E375BF.txt
[12/119] Compiling OpenCombine AnyCancellable.swift
[13/119] Compiling OpenCombine AnyPublisher.swift
[14/119] Compiling OpenCombine AnySubscriber.swift
[15/119] Compiling OpenCombine Cancellable.swift
[16/119] Compiling OpenCombine Codable.swift
[17/119] Compiling OpenCombine CombineIdentifier.swift
[18/119] Compiling OpenCombine ConcurrencyHelpers.swift
[19/119] Compiling OpenCombine Future+Concurrency.swift
[20/119] Compiling OpenCombine GENERATED-Publisher+Concurrency.swift
[21/119] Compiling OpenCombine CurrentValueSubject.swift
[22/119] Compiling OpenCombine CustomCombineIdentifierConvertible.swift
[23/119] Compiling OpenCombine Future.swift
[24/119] Compiling OpenCombine GENERATED-RootProtocols.swift
[25/119] Compiling OpenCombine Just.swift
[26/119] Compiling OpenCombine Optional.Publisher.swift
[27/119] Compiling OpenCombine Publishers.AllSatisfy.swift
[28/119] Compiling OpenCombine Publishers.AssertNoFailure.swift
[29/119] Compiling OpenCombine Publishers.Autoconnect.swift
[30/119] Compiling OpenCombine Publishers.Breakpoint.swift
[31/119] Compiling OpenCombine Publishers.Buffer.swift
[32/119] Compiling OpenCombine Publishers.Collect.swift
[33/119] Compiling OpenCombine Publishers.CollectByCount.swift
[34/119] Compiling OpenCombine Publishers.CompactMap.swift
[35/119] Compiling OpenCombine Publishers.Comparison.swift
[36/119] Compiling OpenCombine Publishers.Concatenate.swift
[37/119] Compiling OpenCombine Publishers.Contains.swift
[38/119] Compiling OpenCombine Utils.swift
[39/119] Compiling OpenCombine Violations.swift
[40/119] Compiling OpenCombine ImmediateScheduler.swift
[41/119] Compiling OpenCombine ObservableObject.swift
[42/119] Compiling OpenCombine PassthroughSubject.swift
[43/119] Compiling OpenCombine Published.swift
[44/119] Compiling OpenCombine Publisher+Subscribe.swift
[45/119] Compiling OpenCombine Deferred.swift
[46/119] Compiling OpenCombine Empty.swift
[47/119] Compiling OpenCombine Fail.swift
[48/119] Compiling OpenCombine GENERATED-Publishers.Catch.swift
[49/119] Compiling OpenCombine GENERATED-Publishers.Encode.swift
[50/119] Compiling OpenCombine GENERATED-Publishers.MapKeyPath.swift
[51/123] Compiling BridgeJSMacros JSMacroSupport.swift
[52/123] Compiling BridgeJSMacros JSSetterMacro.swift
[53/131] Compiling OpenCombine Publishers.Count.swift
[54/131] Compiling OpenCombine Publishers.Debounce.swift
[55/131] Compiling OpenCombine Publishers.Delay.swift
[56/131] Compiling OpenCombine Publishers.Drop.swift
[57/131] Compiling OpenCombine Publishers.DropUntilOutput.swift
[58/131] Compiling OpenCombine Publishers.DropWhile.swift
[59/131] Compiling OpenCombine Publishers.Filter.swift
[60/131] Compiling OpenCombine Publishers.First.swift
[61/131] Compiling OpenCombine Publishers.FlatMap.swift
[62/131] Compiling OpenCombine Publishers.HandleEvents.swift
[63/131] Compiling OpenCombine Publishers.IgnoreOutput.swift
[64/131] Compiling OpenCombine Publishers.Last.swift
[65/131] Compiling OpenCombine Publishers.MakeConnectable.swift
[66/131] Compiling OpenCombine ConduitBase.swift
[67/131] Compiling OpenCombine ConduitList.swift
[68/131] Compiling OpenCombine DebugHook.swift
[69/131] Compiling OpenCombine FilterProducer.swift
[70/131] Compiling OpenCombine Locking.swift
[71/131] Compiling OpenCombine PartialCompletion.swift
[72/131] Compiling OpenCombine PublishedSubject.swift
[73/131] Compiling OpenCombine PublishedSubscriber.swift
[74/131] Compiling OpenCombine ReduceProducer.swift
[75/131] Compiling OpenCombine SubjectSubscriber.swift
[76/131] Compiling OpenCombine SubscriberTap.swift
[77/131] Compiling OpenCombine SubscriptionStatus.swift
[78/131] Compiling OpenCombine SubscriptionTap.swift
[79/131] Compiling OpenCombine Publishers.Map.swift
[80/131] Compiling OpenCombine Publishers.MapError.swift
[81/131] Compiling OpenCombine Publishers.MeasureInterval.swift
[82/131] Compiling OpenCombine Publishers.Multicast.swift
[83/131] Compiling OpenCombine Publishers.Output.swift
[84/131] Compiling OpenCombine Publishers.PrefixUntilOutput.swift
[85/131] Compiling OpenCombine Publishers.PrefixWhile.swift
[86/131] Compiling OpenCombine Publishers.Print.swift
[87/131] Compiling OpenCombine Publishers.ReceiveOn.swift
[88/131] Compiling OpenCombine Publishers.Reduce.swift
[89/131] Compiling OpenCombine Publishers.RemoveDuplicates.swift
[90/131] Compiling OpenCombine Publishers.ReplaceEmpty.swift
[91/131] Compiling OpenCombine Publishers.ReplaceError.swift
[92/131] Compiling BridgeJSMacros JSGetterMacro.swift
[93/131] Emitting module BridgeJSMacros
[94/131] Compiling BridgeJSMacros JSFunctionMacro.swift
[95/131] Compiling BridgeJSMacros BridgeJSMacrosPlugin.swift
[96/131] Compiling BridgeJSMacros JSClassMacro.swift
[97/132] Wrapping AST for BridgeJSMacros for debugging
[98/132] Write Objects.LinkFileList
[100/132] Emitting module OpenCombine
[101/132] Compiling OpenCombine Publishers.Retry.swift
[102/132] Compiling OpenCombine Publishers.Scan.swift
[103/132] Compiling OpenCombine Publishers.Sequence.swift
[104/132] Compiling OpenCombine Publishers.SetFailureType.swift
[105/132] Compiling OpenCombine Publishers.Share.swift
[106/132] Compiling OpenCombine Publishers.SubscribeOn.swift
[107/132] Compiling OpenCombine Publishers.SwitchToLatest.swift
[108/132] Compiling OpenCombine Publishers.Throttle.swift
[109/132] Compiling OpenCombine Publishers.Timeout.swift
[110/132] Compiling OpenCombine Publishers.Zip.swift
[111/132] Compiling OpenCombine Publishers.swift
[112/132] Compiling OpenCombine Record.swift
[113/132] Compiling OpenCombine Result.Publisher.swift
[114/132] Compiling OpenCombine Result.swift
[115/132] Compiling OpenCombine Scheduler.swift
[116/132] Compiling OpenCombine Subject+Void.swift
[117/132] Compiling OpenCombine Subscriber+Void.swift
[118/132] Compiling OpenCombine Subscribers.Assign.swift
[119/132] Compiling OpenCombine Subscribers.Completion.swift
[120/132] Compiling OpenCombine Subscribers.Demand.swift
[121/132] Compiling OpenCombine Subscribers.Sink.swift
[122/132] Compiling OpenCombine Subscribers.swift
[123/132] Compiling OpenCombine Subscription.swift
[124/132] Compiling OpenCombine Subscriptions.swift
[125/132] Compiling OpenCombine _Introspection.swift
[126/133] Wrapping AST for OpenCombine for debugging
[127/133] Linking BridgeJSMacros-tool
[129/157] Compiling JavaScriptKit JSTracing.swift
[130/157] Compiling JavaScriptKit JSUndefinedOr.swift
[131/157] Compiling JavaScriptKit JSValue.swift
[132/160] Compiling JavaScriptKit JSThrowingFunction.swift
[133/160] Compiling JavaScriptKit JSBridgedType.swift
[134/160] Compiling JavaScriptKit JSException.swift
[135/160] Compiling JavaScriptKit ConvertibleToJSValue.swift
[136/160] Compiling JavaScriptKit Deprecated.swift
[137/160] Compiling JavaScriptKit Features.swift
[138/160] Compiling JavaScriptKit JSObject.swift
[139/160] Compiling JavaScriptKit JSString.swift
[140/160] Compiling JavaScriptKit JSSymbol.swift
[141/160] Compiling JavaScriptKit JSArray.swift
[142/160] Compiling JavaScriptKit JSDate.swift
[143/160] Compiling JavaScriptKit JSError.swift
[144/160] Compiling JavaScriptKit JSPromise.swift
[145/160] Compiling JavaScriptKit JSBigInt.swift
[146/160] Compiling JavaScriptKit JSClosure.swift
[147/160] Compiling JavaScriptKit JSObject+CallAsFunction.swift
[148/160] Emitting module JavaScriptKit
[149/160] Compiling JavaScriptKit JSValueDecoder.swift
[150/160] Compiling JavaScriptKit Macros.swift
[151/160] Compiling JavaScriptKit ThreadLocal.swift
[152/160] Compiling JavaScriptKit JSTimer.swift
[153/160] Compiling JavaScriptKit JSTypedArray.swift
[154/160] Compiling JavaScriptKit BridgeJSIntrinsics.swift
[155/160] Compiling JavaScriptKit ConstructibleFromJSValue.swift
[156/161] Wrapping AST for JavaScriptKit for debugging
[158/165] Compiling OpenCombineJS JSValueDecoder.swift
/host/spi-builder-workspace/Sources/OpenCombineJS/JSValueDecoder.swift:18:1: warning: extension declares a conformance of imported type 'JSValueDecoder' to imported protocol 'TopLevelDecoder'; this will not behave correctly if the owners of 'JavaScriptKit' introduce this conformance in the future
16 | import OpenCombine
17 |
18 | extension JSValueDecoder: TopLevelDecoder {
| |- warning: extension declares a conformance of imported type 'JSValueDecoder' to imported protocol 'TopLevelDecoder'; this will not behave correctly if the owners of 'JavaScriptKit' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
19 | public func decode<T: Decodable>(_ type: T.Type, from value: JSValue) throws -> T {
20 | try decode(type, from: value, userInfo: [:])
[159/165] Compiling OpenCombineJS JSScheduler.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[160/165] Emitting module OpenCombineJS
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:24:25: error: type 'JSValue' does not conform to protocol 'Error'
22 |
23 | /// `Future` instance that handles subscriptions to this publisher.
24 | private var future: Future<JSValue, JSValue>
| `- error: type 'JSValue' does not conform to protocol 'Error'
25 |
26 | fileprivate init(promise: JSPromise) {
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:38:17: error: no type for 'Downstream.Failure' can satisfy both 'Downstream.Failure == JSValue' and 'Downstream.Failure : Error'
36 | }
37 |
38 | public func receive<Downstream: Subscriber>(subscriber: Downstream)
| `- error: no type for 'Downstream.Failure' can satisfy both 'Downstream.Failure == JSValue' and 'Downstream.Failure : Error'
39 | where Downstream.Input == JSValue, Downstream.Failure == JSValue
40 | {
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:19:15: error: type 'JSPromise.PromisePublisher' does not conform to protocol 'Publisher'
17 |
18 | public extension JSPromise {
19 | final class PromisePublisher: Publisher {
| |- error: type 'JSPromise.PromisePublisher' does not conform to protocol 'Publisher'
| `- note: add stubs for conformance
20 | public typealias Output = JSValue
21 | public typealias Failure = JSValue
| `- note: possibly intended match 'JSPromise.PromisePublisher.Failure' (aka 'JSValue') does not conform to 'Error'
22 |
23 | /// `Future` instance that handles subscriptions to this publisher.
:
36 | }
37 |
38 | public func receive<Downstream: Subscriber>(subscriber: Downstream)
| `- note: candidate has non-matching type '<Downstream> (subscriber: Downstream) -> ()' [with Failure = _]
39 | where Downstream.Input == JSValue, Downstream.Failure == JSValue
40 | {
/host/spi-builder-workspace/.build/checkouts/OpenCombine/Sources/OpenCombine/GENERATED-RootProtocols.swift:59:20: note: protocol requires nested type 'Failure'
57 | ///
58 | /// Use `Never` if this `Publisher` does not publish errors.
59 | associatedtype Failure: Error
| `- note: protocol requires nested type 'Failure'
60 |
61 | /// Attaches the specified subscriber to this publisher.
:
68 | /// - Parameter subscriber: The subscriber to attach to this publisher. After
69 | /// attaching, the subscriber can start to receive values.
70 | func receive<Subscriber: OpenCombine.Subscriber>(subscriber: Subscriber)
| `- note: protocol requires function 'receive(subscriber:)' with type '<Subscriber> (subscriber: Subscriber) -> ()'
71 | where Failure == Subscriber.Failure, Output == Subscriber.Input
72 | }
/host/spi-builder-workspace/Sources/OpenCombineJS/JSValueDecoder.swift:18:1: warning: extension declares a conformance of imported type 'JSValueDecoder' to imported protocol 'TopLevelDecoder'; this will not behave correctly if the owners of 'JavaScriptKit' introduce this conformance in the future
16 | import OpenCombine
17 |
18 | extension JSValueDecoder: TopLevelDecoder {
| |- warning: extension declares a conformance of imported type 'JSValueDecoder' to imported protocol 'TopLevelDecoder'; this will not behave correctly if the owners of 'JavaScriptKit' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
19 | public func decode<T: Decodable>(_ type: T.Type, from value: JSValue) throws -> T {
20 | try decode(type, from: value, userInfo: [:])
[161/165] Compiling OpenCombineJS JSPromise.swift
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:24:25: error: type 'JSValue' does not conform to protocol 'Error'
22 |
23 | /// `Future` instance that handles subscriptions to this publisher.
24 | private var future: Future<JSValue, JSValue>
| `- error: type 'JSValue' does not conform to protocol 'Error'
25 |
26 | fileprivate init(promise: JSPromise) {
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:38:17: error: no type for 'Downstream.Failure' can satisfy both 'Downstream.Failure == JSValue' and 'Downstream.Failure : Error'
36 | }
37 |
38 | public func receive<Downstream: Subscriber>(subscriber: Downstream)
| `- error: no type for 'Downstream.Failure' can satisfy both 'Downstream.Failure == JSValue' and 'Downstream.Failure : Error'
39 | where Downstream.Input == JSValue, Downstream.Failure == JSValue
40 | {
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:19:15: error: type 'JSPromise.PromisePublisher' does not conform to protocol 'Publisher'
17 |
18 | public extension JSPromise {
19 | final class PromisePublisher: Publisher {
| |- error: type 'JSPromise.PromisePublisher' does not conform to protocol 'Publisher'
| `- note: add stubs for conformance
20 | public typealias Output = JSValue
21 | public typealias Failure = JSValue
| `- note: possibly intended match 'JSPromise.PromisePublisher.Failure' (aka 'JSValue') does not conform to 'Error'
22 |
23 | /// `Future` instance that handles subscriptions to this publisher.
:
36 | }
37 |
38 | public func receive<Downstream: Subscriber>(subscriber: Downstream)
| `- note: candidate has non-matching type '<Downstream> (subscriber: Downstream) -> ()' [with Failure = _]
39 | where Downstream.Input == JSValue, Downstream.Failure == JSValue
40 | {
/host/spi-builder-workspace/.build/checkouts/OpenCombine/Sources/OpenCombine/GENERATED-RootProtocols.swift:59:20: note: protocol requires nested type 'Failure'
57 | ///
58 | /// Use `Never` if this `Publisher` does not publish errors.
59 | associatedtype Failure: Error
| `- note: protocol requires nested type 'Failure'
60 |
61 | /// Attaches the specified subscriber to this publisher.
:
68 | /// - Parameter subscriber: The subscriber to attach to this publisher. After
69 | /// attaching, the subscriber can start to receive values.
70 | func receive<Subscriber: OpenCombine.Subscriber>(subscriber: Subscriber)
| `- note: protocol requires function 'receive(subscriber:)' with type '<Subscriber> (subscriber: Subscriber) -> ()'
71 | where Failure == Subscriber.Failure, Output == Subscriber.Input
72 | }
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:27:17: error: cannot infer contextual base in reference to member 'init'
25 |
26 | fileprivate init(promise: JSPromise) {
27 | future = .init { resolver in
| `- error: cannot infer contextual base in reference to member 'init'
28 | promise.then(success: {
29 | resolver(.success($0))
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:29:21: error: cannot infer contextual base in reference to member 'success'
27 | future = .init { resolver in
28 | promise.then(success: {
29 | resolver(.success($0))
| `- error: cannot infer contextual base in reference to member 'success'
30 | return JSValue.undefined
31 | }, failure: {
/host/spi-builder-workspace/Sources/OpenCombineJS/JSPromise.swift:32:21: error: cannot infer contextual base in reference to member 'failure'
30 | return JSValue.undefined
31 | }, failure: {
32 | resolver(.failure($0))
| `- error: cannot infer contextual base in reference to member 'failure'
33 | return JSValue.undefined
34 | })
BUILD FAILURE 6.3 linux