Swift Package IndexBuild Information
Failed to build Signaling, reference 1.0.0 (687d3c), with Swift 6.1 for Linux on 21 Jan 2026 12:55:29 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/josshad/Signaling.git
Reference: 1.0.0
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/josshad/Signaling
* tag 1.0.0 -> FETCH_HEAD
HEAD is now at 687d3cb Signaling
Cloned https://github.com/josshad/Signaling.git
Revision (git rev-parse @):
687d3cb9ddf87355337e6e5ab71f21a557ff66cf
SUCCESS checkout https://github.com/josshad/Signaling.git at 1.0.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/josshad/Signaling.git
https://github.com/josshad/Signaling.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
{
"identity" : "rxswift",
"requirement" : {
"range" : [
{
"lower_bound" : "6.0.0",
"upper_bound" : "7.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/ReactiveX/RxSwift.git"
},
{
"identity" : "combine-schedulers",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/pointfreeco/combine-schedulers"
}
],
"manifest_display_name" : "Signaling",
"name" : "Signaling",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "11.0"
},
{
"name" : "ios",
"version" : "13.0"
}
],
"products" : [
{
"name" : "CombineSignaling",
"targets" : [
"CombineSignaling"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "RxSignaing",
"targets" : [
"RxSignaing"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "RxSignaingTests",
"module_type" : "SwiftTarget",
"name" : "RxSignaingTests",
"path" : "Tests/RxSignaingTests",
"product_dependencies" : [
"RxSwift"
],
"sources" : [
"RxSignaingTests.swift"
],
"target_dependencies" : [
"RxSignaing"
],
"type" : "test"
},
{
"c99name" : "RxSignaing",
"module_type" : "SwiftTarget",
"name" : "RxSignaing",
"path" : "Sources/RxSignaing",
"product_dependencies" : [
"RxSwift",
"RxCocoa"
],
"product_memberships" : [
"RxSignaing"
],
"sources" : [
"Signaing.swift"
],
"type" : "library"
},
{
"c99name" : "CombineSignalingTests",
"module_type" : "SwiftTarget",
"name" : "CombineSignalingTests",
"path" : "Tests/CombineSignalingTests",
"product_dependencies" : [
"CombineSchedulers"
],
"sources" : [
"CombineSignalingTests.swift",
"SignalTests.swift"
],
"target_dependencies" : [
"CombineSignaling"
],
"type" : "test"
},
{
"c99name" : "CombineSignaling",
"module_type" : "SwiftTarget",
"name" : "CombineSignaling",
"path" : "Sources/CombineSignaling",
"product_memberships" : [
"CombineSignaling"
],
"sources" : [
"Signal.swift",
"Signaling.swift"
],
"type" : "library"
}
],
"tools_version" : "6.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:5a651828b24304580408903d9e8c129215b04dc69edd6058f3847d01e034cce9
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/ReactiveX/RxSwift.git
Fetching https://github.com/pointfreeco/combine-schedulers
[1/2542] Fetching combine-schedulers
[2543/56321] Fetching combine-schedulers, rxswift
Fetched https://github.com/pointfreeco/combine-schedulers from cache (5.22s)
Fetched https://github.com/ReactiveX/RxSwift.git from cache (5.40s)
Computing version for https://github.com/pointfreeco/combine-schedulers
Computed https://github.com/pointfreeco/combine-schedulers at 1.1.0 (5.98s)
Fetching https://github.com/pointfreeco/swift-concurrency-extras
Fetching https://github.com/OpenCombine/OpenCombine.git
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/886] Fetching swift-concurrency-extras
[887/9170] Fetching swift-concurrency-extras, opencombine
[1964/14777] Fetching swift-concurrency-extras, opencombine, xctest-dynamic-overlay
Fetched https://github.com/OpenCombine/OpenCombine.git from cache (0.65s)
[6437/6493] Fetching swift-concurrency-extras, xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (0.91s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.92s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (3.61s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.3.2 (0.77s)
Computing version for https://github.com/ReactiveX/RxSwift.git
Computed https://github.com/ReactiveX/RxSwift.git at 6.9.1 (0.80s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.8.1 (4.61s)
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.3.2
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/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.8.1
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.1.0
Creating working copy for https://github.com/ReactiveX/RxSwift.git
Working copy of https://github.com/ReactiveX/RxSwift.git resolved at 6.9.1
Building for debugging...
[0/9] Write sources
[0/9] Copying PrivacyInfo.xcprivacy
[0/9] Write sources
[5/9] Copying PrivacyInfo.xcprivacy
[7/9] Write sources
[8/9] Write swift-version-24593BA9C3E375BF.txt
[10/156] Compiling RxSwift DispatchQueueConfiguration.swift
[11/156] Compiling RxSwift Disposable.swift
[12/156] Compiling RxSwift Disposables.swift
[13/156] Compiling RxSwift DisposeBag.swift
[14/156] Compiling RxSwift DisposeBase.swift
[15/156] Compiling RxSwift DistinctUntilChanged.swift
[16/156] Compiling RxSwift Do.swift
[17/156] Compiling RxSwift ElementAt.swift
[18/156] Compiling RxSwift Empty.swift
[19/156] Compiling RxSwift Enumerated.swift
[20/156] Compiling RxSwift Error.swift
[21/156] Compiling RxSwift Errors.swift
[22/156] Compiling RxSwift Event.swift
[23/156] Compiling RxSwift Filter.swift
[24/156] Compiling RxSwift First.swift
[25/156] Compiling RxSwift Generate.swift
[26/156] Compiling RxSwift GroupBy.swift
[27/156] Compiling RxSwift GroupedObservable.swift
[28/156] Compiling RxSwift HistoricalScheduler.swift
[29/156] Compiling RxSwift HistoricalSchedulerTimeConverter.swift
[30/156] Compiling RxSwift ImmediateSchedulerType.swift
[31/166] Compiling CombineSignaling Signaling.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[32/166] Emitting module CombineSignaling
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
[33/166] Compiling CombineSignaling Signal.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
[34/176] Compiling RxSwift SchedulerType.swift
[35/176] Compiling RxSwift Sequence.swift
[36/176] Compiling RxSwift SerialDispatchQueueScheduler.swift
[37/176] Compiling RxSwift SerialDisposable.swift
[38/176] Compiling RxSwift ShareReplayScope.swift
[39/176] Compiling RxSwift Single.swift
[40/176] Compiling RxSwift SingleAssignmentDisposable.swift
[41/176] Compiling RxSwift SingleAsync.swift
[42/176] Compiling RxSwift Sink.swift
[43/176] Compiling RxSwift Skip.swift
[44/176] Compiling RxSwift SkipUntil.swift
[45/176] Compiling RxSwift SkipWhile.swift
[46/176] Compiling RxSwift StartWith.swift
[47/176] Compiling RxSwift SubjectType.swift
[48/176] Compiling RxSwift SubscribeOn.swift
[49/176] Compiling RxSwift SubscriptionDisposable.swift
[50/176] Compiling RxSwift SwiftSupport.swift
[51/176] Compiling RxSwift Switch.swift
[52/176] Compiling RxSwift SwitchIfEmpty.swift
[53/176] Compiling RxSwift SynchronizedDisposeType.swift
[54/176] Emitting module RxSwift
[55/176] Compiling RxSwift CombineLatest.swift
[56/176] Compiling RxSwift CompactMap.swift
[57/176] Compiling RxSwift Completable+AndThen.swift
[58/176] Compiling RxSwift Completable.swift
[59/176] Compiling RxSwift CompositeDisposable.swift
[60/176] Compiling RxSwift Concat.swift
[61/176] Compiling RxSwift ConcurrentDispatchQueueScheduler.swift
[62/176] Compiling RxSwift ConcurrentMainScheduler.swift
[63/176] Compiling RxSwift ConnectableObservableType.swift
[64/176] Compiling RxSwift Create.swift
[65/176] Compiling RxSwift CurrentThreadScheduler.swift
[66/176] Compiling RxSwift Date+Dispatch.swift
[67/176] Compiling RxSwift Debounce.swift
[68/176] Compiling RxSwift Debug.swift
[69/176] Compiling RxSwift Decode.swift
[70/176] Compiling RxSwift DefaultIfEmpty.swift
[71/176] Compiling RxSwift Deferred.swift
[72/176] Compiling RxSwift Delay.swift
[73/176] Compiling RxSwift DelaySubscription.swift
[74/176] Compiling RxSwift Dematerialize.swift
[75/176] Compiling RxSwift DispatchQueue+Extensions.swift
[76/176] Compiling RxSwift Never.swift
[77/176] Compiling RxSwift NopDisposable.swift
[78/176] Compiling RxSwift Observable+Concurrency.swift
[79/176] Compiling RxSwift Observable.swift
[80/176] Compiling RxSwift ObservableConvertibleType+Infallible.swift
[81/176] Compiling RxSwift ObservableConvertibleType.swift
[82/176] Compiling RxSwift ObservableType+Extensions.swift
[83/176] Compiling RxSwift ObservableType+PrimitiveSequence.swift
[84/176] Compiling RxSwift ObservableType.swift
[85/176] Compiling RxSwift ObserveOn.swift
[86/176] Compiling RxSwift ObserverBase.swift
[87/176] Compiling RxSwift ObserverType.swift
[88/176] Compiling RxSwift OperationQueueScheduler.swift
[89/176] Compiling RxSwift Optional.swift
[90/176] Compiling RxSwift Platform.Darwin.swift
[91/176] Compiling RxSwift Platform.Linux.swift
[92/176] Compiling RxSwift PrimitiveSequence+Concurrency.swift
[93/176] Compiling RxSwift PrimitiveSequence+Zip+arity.swift
[94/176] Compiling RxSwift PrimitiveSequence.swift
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[98/176] Compiling RxSwift AnonymousDisposable.swift
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[100/176] Compiling RxSwift AnyObserver.swift
[101/176] Compiling RxSwift AsMaybe.swift
[102/176] Compiling RxSwift AsSingle.swift
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[104/176] Compiling RxSwift AsyncSubject.swift
[105/176] Compiling RxSwift AtomicInt.swift
[106/176] Compiling RxSwift Bag+Rx.swift
[107/176] Compiling RxSwift Bag.swift
[108/176] Compiling RxSwift BehaviorSubject.swift
[109/176] Compiling RxSwift BinaryDisposable.swift
[110/176] Compiling RxSwift Binder.swift
[111/176] Compiling RxSwift BooleanDisposable.swift
[112/176] Compiling RxSwift Buffer.swift
[113/176] Compiling RxSwift Cancelable.swift
[114/176] Compiling RxSwift Catch.swift
[115/176] Compiling RxSwift CombineLatest+Collection.swift
[116/176] Compiling RxSwift CombineLatest+arity.swift
[117/176] Compiling RxSwift Producer.swift
[118/176] Compiling RxSwift PublishSubject.swift
[119/176] Compiling RxSwift Queue.swift
[120/176] Compiling RxSwift Range.swift
[121/176] Compiling RxSwift Reactive.swift
[122/176] Compiling RxSwift RecursiveLock.swift
[123/176] Compiling RxSwift RecursiveScheduler.swift
[124/176] Compiling RxSwift Reduce.swift
[125/176] Compiling RxSwift RefCountDisposable.swift
[126/176] Compiling RxSwift Repeat.swift
[127/176] Compiling RxSwift ReplaySubject.swift
[128/176] Compiling RxSwift RetryWhen.swift
[129/176] Compiling RxSwift Rx.swift
[130/176] Compiling RxSwift RxMutableBox.swift
[131/176] Compiling RxSwift Sample.swift
[132/176] Compiling RxSwift Scan.swift
[133/176] Compiling RxSwift ScheduledDisposable.swift
[134/176] Compiling RxSwift ScheduledItem.swift
[135/176] Compiling RxSwift ScheduledItemType.swift
[136/176] Compiling RxSwift SchedulerServices+Emulation.swift
[137/176] Compiling RxSwift Infallible+CombineLatest+Collection.swift
[138/176] Compiling RxSwift Infallible+CombineLatest+arity.swift
[139/176] Compiling RxSwift Infallible+Concurrency.swift
[140/176] Compiling RxSwift Infallible+Create.swift
[141/176] Compiling RxSwift Infallible+Debug.swift
[142/176] Compiling RxSwift Infallible+Operators.swift
[143/176] Compiling RxSwift Infallible+Zip+arity.swift
[144/176] Compiling RxSwift Infallible.swift
[145/176] Compiling RxSwift InfiniteSequence.swift
[146/176] Compiling RxSwift InvocableScheduledItem.swift
[147/176] Compiling RxSwift InvocableType.swift
[148/176] Compiling RxSwift Just.swift
[149/176] Compiling RxSwift Lock.swift
[150/176] Compiling RxSwift LockOwnerType.swift
[151/176] Compiling RxSwift MainScheduler.swift
[152/176] Compiling RxSwift Map.swift
[153/176] Compiling RxSwift Materialize.swift
[154/176] Compiling RxSwift Maybe.swift
[155/176] Compiling RxSwift Merge.swift
[156/176] Compiling RxSwift Multicast.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:5a651828b24304580408903d9e8c129215b04dc69edd6058f3847d01e034cce9
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/4] Emitting module CombineSignaling
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
[3/4] Compiling CombineSignaling Signal.swift
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
[4/4] Compiling CombineSignaling Signaling.swift
/host/spi-builder-workspace/Sources/CombineSignaling/Signal.swift:2:8: error: no such module 'Combine'
1 | import Foundation
2 | import Combine
| `- error: no such module 'Combine'
3 |
4 | public struct Signal<Output> {
BUILD FAILURE 6.1 linux