Swift Package IndexBuild Information
Successful build of FutureResult, reference 1.0.0 (04e845), with Swift 6.3 for Linux on 20 Apr 2026 22:35:57 UTC.
Swift 6 data race errors: 0
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/tapsandswipes/FutureResult.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/tapsandswipes/FutureResult
* tag 1.0.0 -> FETCH_HEAD
HEAD is now at 04e8452 Update dependency
Cloned https://github.com/tapsandswipes/FutureResult.git
Revision (git rev-parse @):
04e8452df265ee7b0c89707d1b2e12a91d212b1a
SUCCESS checkout https://github.com/tapsandswipes/FutureResult.git at 1.0.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/tapsandswipes/FutureResult.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Fetching https://github.com/tapsandswipes/Chainable.git
[1/51] Fetching chainable
Fetched https://github.com/tapsandswipes/Chainable.git from cache (0.24s)
Computing version for https://github.com/tapsandswipes/Chainable.git
Computed https://github.com/tapsandswipes/Chainable.git at 1.0.0 (0.63s)
Creating working copy for https://github.com/tapsandswipes/Chainable.git
Working copy of https://github.com/tapsandswipes/Chainable.git resolved at 1.0.0
Building for debugging...
[0/5] Write sources
[4/5] Write swift-version-24593BA9C3E375BF.txt
[6/9] Emitting module FunctionComposition
[7/9] Compiling FunctionComposition FunctionComposition.swift
[9/10] Emitting module Chainable
[10/10] Compiling Chainable Chainable.swift
[12/18] Compiling ResultExtras Result+Initializers.swift
[13/18] Compiling ResultExtras Result+Composition.swift
[14/18] Compiling ResultExtras Result+Chainable.swift
/host/spi-builder-workspace/Sources/ResultExtras/Result+Chainable.swift:4:1: warning: extension declares a conformance of imported type 'Result' to imported protocol 'Chainable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
2 | import Chainable
3 |
4 | extension Result: Chainable {}
| |- warning: extension declares a conformance of imported type 'Result' to imported protocol 'Chainable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
5 |
6 | public
[15/18] Compiling ResultExtras Result+Accessors.swift
[16/18] Emitting module ResultExtras
/host/spi-builder-workspace/Sources/ResultExtras/Result+Chainable.swift:4:1: warning: extension declares a conformance of imported type 'Result' to imported protocol 'Chainable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
2 | import Chainable
3 |
4 | extension Result: Chainable {}
| |- warning: extension declares a conformance of imported type 'Result' to imported protocol 'Chainable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
| `- note: add '@retroactive' to silence this warning
5 |
6 | public
[17/18] Compiling ResultExtras Result+Transforms.swift
[18/18] Compiling ResultExtras Result+Utils.swift
[20/31] Compiling FutureResult FutureResult+Transforms.swift
[21/31] Compiling FutureResult FutureResult+Utils.swift
[22/32] Compiling FutureResult FutureResult+Initializers.swift
[23/32] Compiling FutureResult FutureResult+Monoid.swift
[24/32] Compiling FutureResult FutureResult+Debug.swift
[25/32] Compiling FutureResult FutureResult+Functor.swift
[26/32] Compiling FutureResult FutureResult+Scheduling.swift
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Scheduling.swift:68:17: warning: mutation of captured var 'r' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
66 | waitQueue.async {
67 | run {
68 | r = $0
| `- warning: mutation of captured var 'r' in concurrently-executing code; this is an error in the Swift 6 language mode [#SendableClosureCaptures]
69 | semaphore.signal()
70 | }
[#SendableClosureCaptures]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-closure-captures>
[27/32] Compiling FutureResult FutureResult.swift
[28/32] Compiling FutureResult Atomic.swift
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:9:65: warning: converting a value of type '(__shared sending Result<R, E>) -> ()' to type '(Result<R, E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
7 | extension FutureResult {
8 | func run() async throws -> R {
9 | try await withCheckedThrowingContinuation { self.run($0.resume) }
| |- warning: converting a value of type '(__shared sending Result<R, E>) -> ()' to type '(Result<R, E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
10 | }
11 | }
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:17:69: warning: converting a value of type '(__shared sending Result<(), E>) -> ()' to type '(Result<(), E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
15 | extension FutureResult where R == Void {
16 | func run() async throws {
17 | _ = try await withCheckedThrowingContinuation { self.run($0.resume(with:)) }
| |- warning: converting a value of type '(__shared sending Result<(), E>) -> ()' to type '(Result<(), E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
18 | }
19 | }
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:25:53: warning: converting a value of type '(__shared sending Result<R, Never>) -> ()' to type '(Result<R, Never>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
23 | extension FutureResult where E == Never {
24 | func run() async -> R {
25 | await withCheckedContinuation { self.run($0.resume) }
| |- warning: converting a value of type '(__shared sending Result<R, Never>) -> ()' to type '(Result<R, Never>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
26 | }
27 | }
[29/32] Compiling FutureResult FutureResult+Async.swift
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:9:65: warning: converting a value of type '(__shared sending Result<R, E>) -> ()' to type '(Result<R, E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
7 | extension FutureResult {
8 | func run() async throws -> R {
9 | try await withCheckedThrowingContinuation { self.run($0.resume) }
| |- warning: converting a value of type '(__shared sending Result<R, E>) -> ()' to type '(Result<R, E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
10 | }
11 | }
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:17:69: warning: converting a value of type '(__shared sending Result<(), E>) -> ()' to type '(Result<(), E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
15 | extension FutureResult where R == Void {
16 | func run() async throws {
17 | _ = try await withCheckedThrowingContinuation { self.run($0.resume(with:)) }
| |- warning: converting a value of type '(__shared sending Result<(), E>) -> ()' to type '(Result<(), E>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
18 | }
19 | }
/host/spi-builder-workspace/Sources/FutureResult/FutureResult+Async.swift:25:53: warning: converting a value of type '(__shared sending Result<R, Never>) -> ()' to type '(Result<R, Never>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
23 | extension FutureResult where E == Never {
24 | func run() async -> R {
25 | await withCheckedContinuation { self.run($0.resume) }
| |- warning: converting a value of type '(__shared sending Result<R, Never>) -> ()' to type '(Result<R, Never>) -> Void' risks causing data races; this is an error in the Swift 6 language mode
| `- note: converting a function typed value with a sending parameter to one without risks allowing actor-isolated values to escape their isolation domain as an argument to an invocation of value
26 | }
27 | }
[30/32] Emitting module FutureResult
[31/32] Compiling FutureResult FutureResult+Chainable.swift
[32/32] Compiling FutureResult FutureResult+Composition.swift
Build complete! (10.40s)
Build complete.
{
"dependencies" : [
{
"identity" : "chainable",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/tapsandswipes/Chainable.git"
}
],
"manifest_display_name" : "FutureResult",
"name" : "FutureResult",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "FutureResult",
"targets" : [
"FutureResult"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "FunctionComposition",
"targets" : [
"FunctionComposition"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "ResultExtras",
"targets" : [
"ResultExtras"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "ResultExtras",
"module_type" : "SwiftTarget",
"name" : "ResultExtras",
"path" : "Sources/ResultExtras",
"product_dependencies" : [
"Chainable"
],
"product_memberships" : [
"FutureResult",
"ResultExtras"
],
"sources" : [
"Result+Accessors.swift",
"Result+Chainable.swift",
"Result+Composition.swift",
"Result+Initializers.swift",
"Result+Transforms.swift",
"Result+Utils.swift"
],
"target_dependencies" : [
"FunctionComposition"
],
"type" : "library"
},
{
"c99name" : "FutureResultTests",
"module_type" : "SwiftTarget",
"name" : "FutureResultTests",
"path" : "Tests/FutureResultTests",
"sources" : [
"FunctionCompositionTests.swift",
"FutureResult+AsyncTests.swift",
"FutureResult+ChainableTests.swift",
"FutureResultTests.swift",
"TestHelpers.swift",
"XCTestManifests.swift"
],
"target_dependencies" : [
"FutureResult",
"ResultExtras",
"FunctionComposition"
],
"type" : "test"
},
{
"c99name" : "FutureResult",
"module_type" : "SwiftTarget",
"name" : "FutureResult",
"path" : "Sources/FutureResult",
"product_dependencies" : [
"Chainable"
],
"product_memberships" : [
"FutureResult"
],
"sources" : [
"Atomic.swift",
"FutureResult+Async.swift",
"FutureResult+Chainable.swift",
"FutureResult+Composition.swift",
"FutureResult+Debug.swift",
"FutureResult+Functor.swift",
"FutureResult+Initializers.swift",
"FutureResult+Monoid.swift",
"FutureResult+Scheduling.swift",
"FutureResult+Transforms.swift",
"FutureResult+Utils.swift",
"FutureResult.swift"
],
"target_dependencies" : [
"FunctionComposition",
"ResultExtras"
],
"type" : "library"
},
{
"c99name" : "FunctionComposition",
"module_type" : "SwiftTarget",
"name" : "FunctionComposition",
"path" : "Sources/FunctionComposition",
"product_memberships" : [
"FutureResult",
"FunctionComposition",
"ResultExtras"
],
"sources" : [
"FunctionComposition.swift"
],
"type" : "library"
}
],
"tools_version" : "5.3"
}
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Done.