Swift Package Index

Build Information

Failed to build Promise, reference 1.14.0 (5152cf), with Swift 6.4 for Wasm on 15 Sep 2026 18:53:15 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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/timvermeulen/promise.git
Reference: 1.14.0
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/timvermeulen/promise
 * tag               1.14.0     -> FETCH_HEAD
HEAD is now at 5152cf8 Call callbacks from the last context only
Cloned https://github.com/timvermeulen/promise.git
Revision (git rev-parse @):
5152cf895afe696193c881af6bfc5c3caa876db4
SUCCESS checkout https://github.com/timvermeulen/promise.git at 1.14.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/timvermeulen/promise.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$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
Building for debugging...
[Planning deferred tasks]
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift:5:24: error: cannot find type 'DispatchQueue' in scope
 3 | public extension BasicFuture {
 4 |     convenience init(
 5 |         asyncOn queue: DispatchQueue,
   |                        `- error: cannot find type 'DispatchQueue' in scope
 6 |         _ process: @escaping (BasicPromise<Value>) -> Void
 7 |     ) {
/host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift:11:37: error: cannot find type 'DispatchQueue' in scope
 9 |     }
10 |
11 |     convenience init(asyncOn queue: DispatchQueue, _ block: @escaping () -> Value) {
   |                                     `- error: cannot find type 'DispatchQueue' in scope
12 |         self.init(asyncOn: queue.asyncContext, block)
13 |     }
/host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift:15:22: error: cannot find type 'DispatchQueue' in scope
13 |     }
14 |
15 |     func on(_ queue: DispatchQueue) -> BasicFuture {
   |                      `- error: cannot find type 'DispatchQueue' in scope
16 |         return changeContext(queue.asyncContext)
17 |     }
/host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift:19:31: error: cannot find type 'DispatchTime' in scope
17 |     }
18 |
19 |     func asyncAfter(deadline: DispatchTime, on queue: DispatchQueue) -> BasicFuture {
   |                               `- error: cannot find type 'DispatchTime' in scope
20 |         return async { resolve in
21 |             queue.asyncAfter(deadline: deadline, execute: resolve)
/host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift:19:55: error: cannot find type 'DispatchQueue' in scope
17 |     }
18 |
19 |     func asyncAfter(deadline: DispatchTime, on queue: DispatchQueue) -> BasicFuture {
   |                                                       `- error: cannot find type 'DispatchQueue' in scope
20 |         return async { resolve in
21 |             queue.asyncAfter(deadline: deadline, execute: resolve)
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:5:24: error: cannot find type 'DispatchQueue' in scope
 3 | public extension Future {
 4 |     convenience init(
 5 |         asyncOn queue: DispatchQueue,
   |                        `- error: cannot find type 'DispatchQueue' in scope
 6 |         _ process: @escaping (Promise<Value>) throws -> Void
 7 |     ) {
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:12:24: error: cannot find type 'DispatchQueue' in scope
10 |
11 |     convenience init(
12 |         asyncOn queue: DispatchQueue,
   |                        `- error: cannot find type 'DispatchQueue' in scope
13 |         _ block: @escaping () throws -> Value
14 |     ) {
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:18:22: error: cannot find type 'DispatchQueue' in scope
16 |     }
17 |
18 |     func on(_ queue: DispatchQueue) -> Future {
   |                      `- error: cannot find type 'DispatchQueue' in scope
19 |         return changeContext(queue.asyncContext)
20 |     }
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:22:31: error: cannot find type 'DispatchTime' in scope
20 |     }
21 |
22 |     func asyncAfter(deadline: DispatchTime, on queue: DispatchQueue) -> Future {
   |                               `- error: cannot find type 'DispatchTime' in scope
23 |         return async { resolve in
24 |             queue.asyncAfter(deadline: deadline, execute: resolve)
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:22:55: error: cannot find type 'DispatchQueue' in scope
20 |     }
21 |
22 |     func asyncAfter(deadline: DispatchTime, on queue: DispatchQueue) -> Future {
   |                                                       `- error: cannot find type 'DispatchQueue' in scope
23 |         return async { resolve in
24 |             queue.asyncAfter(deadline: deadline, execute: resolve)
/host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift:54:8: error: non-nominal type 'URLSession' (aka 'AnyObject') cannot be extended [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/nominal-types\NominalTypes]8;;\]
52 | }
53 |
54 | public extension URLSession {
   |        `- error: non-nominal type 'URLSession' (aka 'AnyObject') cannot be extended [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/nominal-types\NominalTypes]8;;\]
55 |     func dataTask(with request: URLRequest) -> Future<(data: Data, response: HTTPURLResponse)> {
56 |         return Future { promise in
/host/spi-builder-workspace/Sources/Promise/Miscellaneous/Atomic.swift:5:24: error: cannot find type 'DispatchQueue' in scope
 3 | final class Atomic<Value> {
 4 |     private var _value: Value
 5 |     private let queue: DispatchQueue
   |                        `- error: cannot find type 'DispatchQueue' in scope
 6 |
 7 |     init(_ value: Value, queue: DispatchQueue = DispatchQueue(label: "\(Atomic.self)")) {
/host/spi-builder-workspace/Sources/Promise/Miscellaneous/Atomic.swift:7:33: error: cannot find type 'DispatchQueue' in scope
 5 |     private let queue: DispatchQueue
 6 |
 7 |     init(_ value: Value, queue: DispatchQueue = DispatchQueue(label: "\(Atomic.self)")) {
   |                                 `- error: cannot find type 'DispatchQueue' in scope
 8 |         self._value = value
 9 |         self.queue = queue
/host/spi-builder-workspace/Sources/Promise/Miscellaneous/DispatchQueue+ExecutionContext.swift:3:11: error: cannot find type 'DispatchQueue' in scope
1 | import Foundation
2 |
3 | extension DispatchQueue {
  |           `- error: cannot find type 'DispatchQueue' in scope
4 |     var asyncContext: ExecutionContext {
5 |         return { self.async(execute: $0) }
/host/spi-builder-workspace/Sources/Promise/Miscellaneous/ExecutionContext.swift:5:40: error: cannot find 'DispatchQueue' in scope
3 | public typealias ExecutionContext = (@escaping () -> Void) -> Void
4 |
5 | internal let defaultExecutionContext = DispatchQueue.main.asyncContext
  |                                        `- error: cannot find 'DispatchQueue' in scope
6 |
[#NominalTypes]: <https://docs.swift.org/compiler/documentation/diagnostics/nominal-types>
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Extras.swift /host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture+Foundation.swift /host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicFuture.swift /host/spi-builder-workspace/Sources/Promise/BasicFuture/BasicPromise.swift /host/spi-builder-workspace/Sources/Promise/Future/Future+Extras.swift /host/spi-builder-workspace/Sources/Promise/Future/Future+Foundation.swift /host/spi-builder-workspace/Sources/Promise/Future/Future.swift /host/spi-builder-workspace/Sources/Promise/Future/Promise.swift /host/spi-builder-workspace/Sources/Promise/Miscellaneous/Atomic.swift /host/spi-builder-workspace/Sources/Promise/Miscellaneous/DispatchQueue+ExecutionContext.swift /host/spi-builder-workspace/Sources/Promise/Miscellaneous/ExecutionContext.swift /host/spi-builder-workspace/Sources/Promise/Miscellaneous/Result.swift /host/spi-builder-workspace/Sources/Promise/Miscellaneous/Traversable.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 4 -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/Promise.build/Debug-webassembly-wasm32/Promise-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Promise -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Promise_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/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Modules/Promise.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Modules/Promise.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Promise-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Promise-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Promise-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Promise.build/Debug-webassembly-wasm32/Promise-t.build/Objects-normal/wasm32/Modules/Promise.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm