Swift Package IndexBuild Information
Successful build of Futures, reference 1.6.1 (f47a29), with Swift 6.1 for Linux on 25 Apr 2025 15:33:19 UTC.
Swift 6 data race errors: 1
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" 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>&1Build Log
========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/davidask/Futures.git
Reference: 1.6.1
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/davidask/Futures
* tag 1.6.1 -> FETCH_HEAD
HEAD is now at f47a292 Rename file, update discard member
Cloned https://github.com/davidask/Futures.git
Revision (git rev-parse @):
f47a292801a7d5c465e91df62da47f7139c77e72
SUCCESS checkout https://github.com/davidask/Futures.git at 1.6.1
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/davidask/Futures.git
https://github.com/davidask/Futures.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
],
"manifest_display_name" : "Futures",
"name" : "Futures",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.10"
},
{
"name" : "ios",
"version" : "8.0"
},
{
"name" : "tvos",
"version" : "9.0"
},
{
"name" : "watchos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "Futures",
"targets" : [
"Futures"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "FuturesTests",
"module_type" : "SwiftTarget",
"name" : "FuturesTests",
"path" : "Tests/FuturesTests",
"sources" : [
"FuturesTests.swift"
],
"target_dependencies" : [
"Futures"
],
"type" : "test"
},
{
"c99name" : "Futures",
"module_type" : "SwiftTarget",
"name" : "Futures",
"path" : "Sources/Futures",
"product_memberships" : [
"Futures"
],
"sources" : [
"AnyFuture.swift",
"DispatchQueue+Futures.swift",
"Future.swift",
"Promise.swift",
"PromisesExtended.swift"
],
"type" : "library"
}
],
"tools_version" : "5.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" 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: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/8] Compiling Futures Promise.swift
/host/spi-builder-workspace/Sources/Futures/Promise.swift:16:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
14 | queue.async {
15 | do {
16 | try promise.fulfill(body())
| `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
17 | } catch {
18 | promise.reject(error)
:
94 | ///
95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
96 | public struct Promise<Value> {
| `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
97 |
98 | /// The future value of this promise.
/host/spi-builder-workspace/Sources/Futures/Promise.swift:16:33: warning: capture of 'body' with non-sendable type '() throws -> Value' in a '@Sendable' closure; this is an error in the Swift 6 language mode
14 | queue.async {
15 | do {
16 | try promise.fulfill(body())
| |- warning: capture of 'body' with non-sendable type '() throws -> Value' in a '@Sendable' closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
17 | } catch {
18 | promise.reject(error)
/host/spi-builder-workspace/Sources/Futures/Promise.swift:46:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
44 | do {
45 | let completion = { (value: Result<Value, Error>) in
46 | promise.resolve(value)
| `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
47 | }
48 |
:
94 | ///
95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
96 | public struct Promise<Value> {
| `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
97 |
98 | /// The future value of this promise.
/host/spi-builder-workspace/Sources/Futures/Promise.swift:49:17: warning: capture of 'body' with non-sendable type '(@escaping (Result<Value, any Error>) -> Void) throws -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
47 | }
48 |
49 | try body(completion)
| |- warning: capture of 'body' with non-sendable type '(@escaping (Result<Value, any Error>) -> Void) throws -> Void' in a '@Sendable' closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
50 | } catch {
51 | promise.reject(error)
/host/spi-builder-workspace/Sources/Futures/Promise.swift:46:17: warning: capture of 'promise' with non-sendable type 'Promise<Value>' in an isolated closure; this is an error in the Swift 6 language mode
44 | do {
45 | let completion = { (value: Result<Value, Error>) in
46 | promise.resolve(value)
| `- warning: capture of 'promise' with non-sendable type 'Promise<Value>' in an isolated closure; this is an error in the Swift 6 language mode
47 | }
48 |
:
94 | ///
95 | /// - Note: `Future` is the observable value, while `Promise` is the function that sets it.
96 | public struct Promise<Value> {
| `- note: consider making generic struct 'Promise' conform to the 'Sendable' protocol
97 |
98 | /// The future value of this promise.
[4/8] Compiling Futures DispatchQueue+Futures.swift
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 | /// The default queue, on which futures are observed and executed on.
6 | static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
| |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'futures' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
7 | }
8 |
[5/8] Compiling Futures PromisesExtended.swift
[6/8] Emitting module Futures
/host/spi-builder-workspace/Sources/Futures/DispatchQueue+Futures.swift:6:16: warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
4 |
5 | /// The default queue, on which futures are observed and executed on.
6 | static var futures = DispatchQueue(label: "com.formbound.future.default", attributes: .concurrent)
| |- warning: static property 'futures' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'futures' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'futures' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
7 | }
8 |
[7/8] Compiling Futures AnyFuture.swift
[8/8] Compiling Futures Future.swift
/host/spi-builder-workspace/Sources/Futures/Future.swift:67:13: warning: capture of 'self' with non-sendable type 'FutureObserver<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
39 | /// - `Future<Value>.whenFulfilled()`
40 | /// - `Future<Value>.whenRejected()`
41 | public final class FutureObserver<Value>: AnyFutureObserver {
| `- note: generic class 'FutureObserver' does not conform to the 'Sendable' protocol
42 |
43 | private let callback: (Result<Value, Error>) -> Void
:
65 | fileprivate func invoke(_ value: Result<Value, Error>) {
66 | queue.async {
67 | self.callback(value)
| `- warning: capture of 'self' with non-sendable type 'FutureObserver<Value>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
68 | }
69 | }
/host/spi-builder-workspace/Sources/Futures/Future.swift:67:27: warning: capture of 'value' with non-sendable type 'Result<Value, any Error>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
39 | /// - `Future<Value>.whenFulfilled()`
40 | /// - `Future<Value>.whenRejected()`
41 | public final class FutureObserver<Value>: AnyFutureObserver {
| `- note: consider making generic parameter 'Value' conform to the 'Sendable' protocol
42 |
43 | private let callback: (Result<Value, Error>) -> Void
:
65 | fileprivate func invoke(_ value: Result<Value, Error>) {
66 | queue.async {
67 | self.callback(value)
| `- warning: capture of 'value' with non-sendable type 'Result<Value, any Error>' in a '@Sendable' closure; this is an error in the Swift 6 language mode
68 | }
69 | }
Build complete! (8.86s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "Futures",
"name" : "Futures",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.10"
},
{
"name" : "ios",
"version" : "8.0"
},
{
"name" : "tvos",
"version" : "9.0"
},
{
"name" : "watchos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "Futures",
"targets" : [
"Futures"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "FuturesTests",
"module_type" : "SwiftTarget",
"name" : "FuturesTests",
"path" : "Tests/FuturesTests",
"sources" : [
"FuturesTests.swift"
],
"target_dependencies" : [
"Futures"
],
"type" : "test"
},
{
"c99name" : "Futures",
"module_type" : "SwiftTarget",
"name" : "Futures",
"path" : "Sources/Futures",
"product_memberships" : [
"Futures"
],
"sources" : [
"AnyFuture.swift",
"DispatchQueue+Futures.swift",
"Future.swift",
"Promise.swift",
"PromisesExtended.swift"
],
"type" : "library"
}
],
"tools_version" : "5.2"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.