Swift Package IndexBuild Information
Successful build of CucumberSwiftExpressions, reference main (ef66ec), with Swift 6.1 for macOS (SPM) on 28 Oct 2026 10:53:07 UTC.
Swift 6 data race errors: 4
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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 InferSendableFromCapturesBuild Log
========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/cucumberswift/CucumberSwiftExpressions.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/cucumberswift/CucumberSwiftExpressions
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at ef66ec3 docs: update the README and the Code of Conduct contact (#87) (#92)
Cloned https://github.com/cucumberswift/CucumberSwiftExpressions.git
Revision (git rev-parse @):
ef66ec35f0849538a29ecb5e9a80dfba0abeca5f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/cucumberswift/CucumberSwiftExpressions.git at main
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/cucumberswift/CucumberSwiftExpressions.git
https://github.com/cucumberswift/CucumberSwiftExpressions.git
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Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/4] Write sources
[3/4] Write swift-version-2F0A5646E1D333AE.txt
[5/23] Compiling CucumberSwiftExpressions StringParameter.swift
[6/23] Compiling CucumberSwiftExpressions WordParameter.swift
[7/25] Compiling CucumberSwiftExpressions SyntaxParser.swift
[8/25] Compiling CucumberSwiftExpressions Token.swift
[9/25] Compiling CucumberSwiftExpressions FloatParameter.swift
[10/25] Compiling CucumberSwiftExpressions IntParameter.swift
[11/25] Compiling CucumberSwiftExpressions AnonymousParameter.swift
[12/25] Compiling CucumberSwiftExpressions DoubleParameter.swift
[13/25] Compiling CucumberSwiftExpressions Position.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Position.swift:12:16: warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | public struct Position: Hashable, Equatable {
| `- note: consider making struct 'Position' conform to the 'Sendable' protocol
12 | static let start: Position = {
| |- warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'start' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 | Position(line: 0, column: 0)
14 | }()
[14/25] Compiling CucumberSwiftExpressions StringReader.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Position.swift:12:16: warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | public struct Position: Hashable, Equatable {
| `- note: consider making struct 'Position' conform to the 'Sendable' protocol
12 | static let start: Position = {
| |- warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'start' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 | Position(line: 0, column: 0)
14 | }()
[15/25] Compiling CucumberSwiftExpressions Syntax.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/SyntaxError.swift:46:20: warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
14 | /// cannot be read reliably after one.
15 | public struct SyntaxError: Error, Equatable, CustomStringConvertible {
16 | public enum Problem: Equatable {
| `- note: consider making enum 'Problem' conform to the 'Sendable' protocol
17 | /// A `{` with no `}` after it, such as `I have {int cukes`. The range is the `{`.
18 | case missingClosingBrace
:
44 | /// The string that does not parse.
45 | public let expression: String
46 | public let problem: Problem
| `- warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
47 | /// Where the problem is in ``expression``; each ``Problem`` says what it covers.
48 | public let range: Range<String.Index>
[16/25] Compiling CucumberSwiftExpressions SyntaxError.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/SyntaxError.swift:46:20: warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
14 | /// cannot be read reliably after one.
15 | public struct SyntaxError: Error, Equatable, CustomStringConvertible {
16 | public enum Problem: Equatable {
| `- note: consider making enum 'Problem' conform to the 'Sendable' protocol
17 | /// A `{` with no `}` after it, such as `I have {int cukes`. The range is the `{`.
18 | case missingClosingBrace
:
44 | /// The string that does not parse.
45 | public let expression: String
46 | public let problem: Problem
| `- warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
47 | /// Where the problem is in ``expression``; each ``Problem`` says what it covers.
48 | public let range: Range<String.Index>
[17/25] Compiling CucumberSwiftExpressions AnyParameter.swift
[18/25] Compiling CucumberSwiftExpressions Parameter.swift
[19/25] Compiling CucumberSwiftExpressions Lexer.swift
[20/25] Compiling CucumberSwiftExpressions Match.swift
[21/25] Compiling CucumberSwiftExpressions CharacterExtensions.swift
[22/25] Compiling CucumberSwiftExpressions InvalidRegularExpression.swift
[23/25] Emitting module CucumberSwiftExpressions
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:336:16: warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
334 |
335 | extension CucumberExpression {
336 | static let parameters: [AnyParameter] = {
| |- warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'parameters' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
337 | [
338 | StringParameter().eraseToAnyParameter(),
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Parameter/AnyParameter.swift:12:20: note: class 'AnyParameter' does not conform to the 'Sendable' protocol
10 | import Foundation
11 |
12 | public final class AnyParameter {
| `- note: class 'AnyParameter' does not conform to the 'Sendable' protocol
13 | fileprivate let storage: AnyParameterBase
14 |
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:347:16: warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
345 | }()
346 |
347 | static var parameterLookup: [String: AnyParameter] = {
| |- warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'parameterLookup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'parameterLookup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
348 | parameters
349 | .reduce(into: [:]) { $0[$1.name] = $1 }
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Position.swift:12:16: warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | public struct Position: Hashable, Equatable {
| `- note: consider making struct 'Position' conform to the 'Sendable' protocol
12 | static let start: Position = {
| |- warning: static property 'start' is not concurrency-safe because non-'Sendable' type 'Position' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'start' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
13 | Position(line: 0, column: 0)
14 | }()
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/SyntaxError.swift:46:20: warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
14 | /// cannot be read reliably after one.
15 | public struct SyntaxError: Error, Equatable, CustomStringConvertible {
16 | public enum Problem: Equatable {
| `- note: consider making enum 'Problem' conform to the 'Sendable' protocol
17 | /// A `{` with no `}` after it, such as `I have {int cukes`. The range is the `{`.
18 | case missingClosingBrace
:
44 | /// The string that does not parse.
45 | public let expression: String
46 | public let problem: Problem
| `- warning: stored property 'problem' of 'Sendable'-conforming struct 'SyntaxError' has non-sendable type 'CucumberExpression.SyntaxError.Problem'; this is an error in the Swift 6 language mode
47 | /// Where the problem is in ``expression``; each ``Problem`` says what it covers.
48 | public let range: Range<String.Index>
[24/25] Compiling CucumberSwiftExpressions CucumberExpression.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:336:16: warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
334 |
335 | extension CucumberExpression {
336 | static let parameters: [AnyParameter] = {
| |- warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'parameters' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
337 | [
338 | StringParameter().eraseToAnyParameter(),
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Parameter/AnyParameter.swift:12:20: note: class 'AnyParameter' does not conform to the 'Sendable' protocol
10 | import Foundation
11 |
12 | public final class AnyParameter {
| `- note: class 'AnyParameter' does not conform to the 'Sendable' protocol
13 | fileprivate let storage: AnyParameterBase
14 |
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:347:16: warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
345 | }()
346 |
347 | static var parameterLookup: [String: AnyParameter] = {
| |- warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'parameterLookup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'parameterLookup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
348 | parameters
349 | .reduce(into: [:]) { $0[$1.name] = $1 }
[25/25] Compiling CucumberSwiftExpressions CustomParameters.swift
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:336:16: warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
334 |
335 | extension CucumberExpression {
336 | static let parameters: [AnyParameter] = {
| |- warning: static property 'parameters' is not concurrency-safe because non-'Sendable' type '[AnyParameter]' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'parameters' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
337 | [
338 | StringParameter().eraseToAnyParameter(),
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/Parameter/AnyParameter.swift:12:20: note: class 'AnyParameter' does not conform to the 'Sendable' protocol
10 | import Foundation
11 |
12 | public final class AnyParameter {
| `- note: class 'AnyParameter' does not conform to the 'Sendable' protocol
13 | fileprivate let storage: AnyParameterBase
14 |
/Users/admin/builder/spi-builder-workspace/Sources/CucumberSwiftExpressions/CucumberExpression.swift:347:16: warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
345 | }()
346 |
347 | static var parameterLookup: [String: AnyParameter] = {
| |- warning: static property 'parameterLookup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'parameterLookup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'parameterLookup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
348 | parameters
349 | .reduce(into: [:]) { $0[$1.name] = $1 }
Build complete! (19.89s)
Fetching https://github.com/apple/swift-docc-plugin
[1/2345] Fetching swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin from cache (1.53s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (2.25s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.05s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.87s)
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
Build complete.
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Done.