Swift Package IndexBuild Information
Failed to build Future, reference 0.0.4 (ce95d1), with Swift 6.3 for Wasm on 10 Apr 2026 19:58:51 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/genius/future.git
Reference: 0.0.4
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/genius/future
* tag 0.0.4 -> FETCH_HEAD
HEAD is now at ce95d1b Merge pull request #7 from Genius/feat-thread-delivery
Cloned https://github.com/genius/future.git
Revision (git rev-parse @):
ce95d1b39d88258266b9e4843c101c92479bdba7
SUCCESS checkout https://github.com/genius/future.git at 0.0.4
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/genius/future.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/6] Compiling Future NoError.swift
[4/6] Emitting module Future
/host/spi-builder-workspace/Sources/Future/Future.swift:128:26: error: cannot find type 'DispatchQueue' in scope
126 |
127 | @discardableResult
128 | public func then(on: DispatchQueue, block: @escaping ((Value) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
129 | return self.then { value in
130 | on.async { block(value) }
/host/spi-builder-workspace/Sources/Future/Future.swift:153:29: error: cannot find type 'DispatchQueue' in scope
151 |
152 | @discardableResult
153 | public func `catch`(on: DispatchQueue, block: @escaping ((Error) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
154 | return self.catch { error in
155 | on.async { block(error) }
/host/spi-builder-workspace/Sources/Future/Future.swift:193:37: error: cannot find type 'DispatchQueue' in scope
191 |
192 | public extension Future {
193 | static func on(_ dispatchQueue: DispatchQueue, block: @escaping (Future<T, E>.Resolver) -> Void) -> Future<T, E> {
| `- error: cannot find type 'DispatchQueue' in scope
194 | return Future { resolver in
195 | dispatchQueue.async { block(resolver) }
[5/6] Compiling Future Futures.swift
/host/spi-builder-workspace/Sources/Future/Future.swift:128:26: error: cannot find type 'DispatchQueue' in scope
126 |
127 | @discardableResult
128 | public func then(on: DispatchQueue, block: @escaping ((Value) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
129 | return self.then { value in
130 | on.async { block(value) }
/host/spi-builder-workspace/Sources/Future/Future.swift:153:29: error: cannot find type 'DispatchQueue' in scope
151 |
152 | @discardableResult
153 | public func `catch`(on: DispatchQueue, block: @escaping ((Error) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
154 | return self.catch { error in
155 | on.async { block(error) }
[6/6] Compiling Future Future.swift
/host/spi-builder-workspace/Sources/Future/Future.swift:128:26: error: cannot find type 'DispatchQueue' in scope
126 |
127 | @discardableResult
128 | public func then(on: DispatchQueue, block: @escaping ((Value) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
129 | return self.then { value in
130 | on.async { block(value) }
/host/spi-builder-workspace/Sources/Future/Future.swift:153:29: error: cannot find type 'DispatchQueue' in scope
151 |
152 | @discardableResult
153 | public func `catch`(on: DispatchQueue, block: @escaping ((Error) -> Void)) -> Future<Value, Error> {
| `- error: cannot find type 'DispatchQueue' in scope
154 | return self.catch { error in
155 | on.async { block(error) }
/host/spi-builder-workspace/Sources/Future/Future.swift:193:37: error: cannot find type 'DispatchQueue' in scope
191 |
192 | public extension Future {
193 | static func on(_ dispatchQueue: DispatchQueue, block: @escaping (Future<T, E>.Resolver) -> Void) -> Future<T, E> {
| `- error: cannot find type 'DispatchQueue' in scope
194 | return Future { resolver in
195 | dispatchQueue.async { block(resolver) }
BUILD FAILURE 6.3 wasm