Swift Package IndexBuild Information
Failed to build Sovran, reference main (47f4fe), with Swift 6.1 for Wasm on 24 Jul 2026 04:37:26 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344849-2":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1Build Log
========================================
RunAll
========================================
Builder version: 333316120c8b89ed7d21f1b34865290794301d91
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/segmentio/Sovran-Swift.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/segmentio/Sovran-Swift
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 47f4fe2 ci: migrate GHA to macos-arm + SHA-pinned actions (#14)
Cloned https://github.com/segmentio/Sovran-Swift.git
Revision (git rev-parse @):
47f4fe247f4db9c57a5e3a571fcdc7243c34c98a
SUCCESS checkout https://github.com/segmentio/Sovran-Swift.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/segmentio/Sovran-Swift.git
https://github.com/segmentio/Sovran-Swift.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -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
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:1ad245dad3d2ae0004e1afbc92334bd39884ed9ca587cf04d0a8d5f640fb02e9
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/9] Compiling Sovran Version.swift
[4/9] Compiling Sovran Testing.swift
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:12:14: warning: var 'isUnitTesting' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 | /// Inquire as to whether we are within a Unit Testing environment.
11 | #if DEBUG
12 | internal var isUnitTesting: Bool = {
| |- warning: var 'isUnitTesting' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'isUnitTesting' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'isUnitTesting' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 | // this will work on apple platforms, but fail on linux.
14 | if NSClassFromString("XCTestCase") != nil {
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:19:19: error: cannot find 'Thread' in scope
17 | // this will work on linux and apple platforms, but not in anything with a UI
18 | // because XCTest doesn't come into the call stack till much later.
19 | let matches = Thread.callStackSymbols.filter { line in
| `- error: cannot find 'Thread' in scope
20 | return line.contains("XCTest") || line.contains("xctest")
21 | }
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/9] Emitting module Sovran
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:54:98: error: cannot find type 'DispatchQueue' in scope
52 | */
53 | @discardableResult
54 | public func subscribe<T: State>(_ subscriber: Subscriber, initialState: Bool = false, queue: DispatchQueue = .main, handler: @escaping Handler<T>) -> SubscriptionID {
| `- error: cannot find type 'DispatchQueue' in scope
55 | let subscription = Subscription(owner: subscriber, queue: queue, handler: handler)
56 | syncQueue.sync {
/host/spi-builder-workspace/Sources/Sovran/Store.swift:202:16: error: cannot find type 'DispatchQueue' in scope
200 | internal struct Subscription {
201 | weak var owner: Subscriber? = nil
202 | let queue: DispatchQueue
| `- error: cannot find type 'DispatchQueue' in scope
203 | let handler: Any
204 | let subscriptionID = createNextSubscriptionID()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:206:28: warning: static property 'nextSubscriptionID' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
204 | let subscriptionID = createNextSubscriptionID()
205 |
206 | fileprivate static var nextSubscriptionID = 1
| |- warning: static property 'nextSubscriptionID' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'nextSubscriptionID' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'nextSubscriptionID' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
207 | fileprivate static func createNextSubscriptionID() -> SubscriptionID {
208 | let result = nextSubscriptionID
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:12:14: warning: var 'isUnitTesting' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 | /// Inquire as to whether we are within a Unit Testing environment.
11 | #if DEBUG
12 | internal var isUnitTesting: Bool = {
| |- warning: var 'isUnitTesting' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'isUnitTesting' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'isUnitTesting' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 | // this will work on apple platforms, but fail on linux.
14 | if NSClassFromString("XCTestCase") != nil {
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:19:19: error: cannot find 'Thread' in scope
17 | // this will work on linux and apple platforms, but not in anything with a UI
18 | // because XCTest doesn't come into the call stack till much later.
19 | let matches = Thread.callStackSymbols.filter { line in
| `- error: cannot find 'Thread' in scope
20 | return line.contains("XCTest") || line.contains("xctest")
21 | }
[6/9] Compiling Sovran Action.swift
[7/9] Compiling Sovran State.swift
[8/9] Compiling Sovran Subscriber.swift
[9/9] Compiling Sovran Store.swift
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:54:98: error: cannot find type 'DispatchQueue' in scope
52 | */
53 | @discardableResult
54 | public func subscribe<T: State>(_ subscriber: Subscriber, initialState: Bool = false, queue: DispatchQueue = .main, handler: @escaping Handler<T>) -> SubscriptionID {
| `- error: cannot find type 'DispatchQueue' in scope
55 | let subscription = Subscription(owner: subscriber, queue: queue, handler: handler)
56 | syncQueue.sync {
/host/spi-builder-workspace/Sources/Sovran/Store.swift:202:16: error: cannot find type 'DispatchQueue' in scope
200 | internal struct Subscription {
201 | weak var owner: Subscriber? = nil
202 | let queue: DispatchQueue
| `- error: cannot find type 'DispatchQueue' in scope
203 | let handler: Any
204 | let subscriptionID = createNextSubscriptionID()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:206:28: warning: static property 'nextSubscriptionID' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
204 | let subscriptionID = createNextSubscriptionID()
205 |
206 | fileprivate static var nextSubscriptionID = 1
| |- warning: static property 'nextSubscriptionID' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'nextSubscriptionID' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'nextSubscriptionID' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
207 | fileprivate static func createNextSubscriptionID() -> SubscriptionID {
208 | let result = nextSubscriptionID
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-2":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:1ad245dad3d2ae0004e1afbc92334bd39884ed9ca587cf04d0a8d5f640fb02e9
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-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)
[2/8] Compiling Sovran State.swift
[3/8] Emitting module Sovran
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:54:98: error: cannot find type 'DispatchQueue' in scope
52 | */
53 | @discardableResult
54 | public func subscribe<T: State>(_ subscriber: Subscriber, initialState: Bool = false, queue: DispatchQueue = .main, handler: @escaping Handler<T>) -> SubscriptionID {
| `- error: cannot find type 'DispatchQueue' in scope
55 | let subscription = Subscription(owner: subscriber, queue: queue, handler: handler)
56 | syncQueue.sync {
/host/spi-builder-workspace/Sources/Sovran/Store.swift:202:16: error: cannot find type 'DispatchQueue' in scope
200 | internal struct Subscription {
201 | weak var owner: Subscriber? = nil
202 | let queue: DispatchQueue
| `- error: cannot find type 'DispatchQueue' in scope
203 | let handler: Any
204 | let subscriptionID = createNextSubscriptionID()
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:19:19: error: cannot find 'Thread' in scope
17 | // this will work on linux and apple platforms, but not in anything with a UI
18 | // because XCTest doesn't come into the call stack till much later.
19 | let matches = Thread.callStackSymbols.filter { line in
| `- error: cannot find 'Thread' in scope
20 | return line.contains("XCTest") || line.contains("xctest")
21 | }
[4/8] Compiling Sovran Subscriber.swift
[5/8] Compiling Sovran Action.swift
[6/8] Compiling Sovran Store.swift
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:54:98: error: cannot find type 'DispatchQueue' in scope
52 | */
53 | @discardableResult
54 | public func subscribe<T: State>(_ subscriber: Subscriber, initialState: Bool = false, queue: DispatchQueue = .main, handler: @escaping Handler<T>) -> SubscriptionID {
| `- error: cannot find type 'DispatchQueue' in scope
55 | let subscription = Subscription(owner: subscriber, queue: queue, handler: handler)
56 | syncQueue.sync {
/host/spi-builder-workspace/Sources/Sovran/Store.swift:202:16: error: cannot find type 'DispatchQueue' in scope
200 | internal struct Subscription {
201 | weak var owner: Subscriber? = nil
202 | let queue: DispatchQueue
| `- error: cannot find type 'DispatchQueue' in scope
203 | let handler: Any
204 | let subscriptionID = createNextSubscriptionID()
[7/8] Compiling Sovran Version.swift
[8/8] Compiling Sovran Testing.swift
/host/spi-builder-workspace/Sources/Sovran/Testing.swift:19:19: error: cannot find 'Thread' in scope
17 | // this will work on linux and apple platforms, but not in anything with a UI
18 | // because XCTest doesn't come into the call stack till much later.
19 | let matches = Thread.callStackSymbols.filter { line in
| `- error: cannot find 'Thread' in scope
20 | return line.contains("XCTest") || line.contains("xctest")
21 | }
/host/spi-builder-workspace/Sources/Sovran/Store.swift:16:30: error: cannot find 'DispatchQueue' in scope
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
17 | internal var states = [Container]()
18 | internal var subscribers = [Subscription]()
/host/spi-builder-workspace/Sources/Sovran/Store.swift:14:32: error: cannot find 'DispatchQueue' in scope
12 | public class Store {
13 | // handles synchronizing state changes thru the system
14 | internal let updateQueue = DispatchQueue(label: "state.update.segment.com")
| `- error: cannot find 'DispatchQueue' in scope
15 | // handles synchronizing subscription adds/removes
16 | internal let syncQueue = DispatchQueue(label: "state.sync.segment.com")
BUILD FAILURE 6.1 wasm