Swift Package IndexBuild Information
Failed to build SwiftRegex, reference 6.3.0 (84c3fa), with Swift 6.1 for Linux on 18 Feb 2026 23:23:01 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/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/johnno1962/SwiftRegex5.git
Reference: 6.3.0
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/johnno1962/SwiftRegex5
* tag 6.3.0 -> FETCH_HEAD
HEAD is now at 84c3fa9 Allow optional chaining.
Cloned https://github.com/johnno1962/SwiftRegex5.git
Revision (git rev-parse @):
84c3fa9a180b2c02e65e9a61287445b0482a5efe
SUCCESS checkout https://github.com/johnno1962/SwiftRegex5.git at 6.3.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/johnno1962/SwiftRegex5.git
https://github.com/johnno1962/SwiftRegex5.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
],
"manifest_display_name" : "SwiftRegex",
"name" : "SwiftRegex",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.10"
},
{
"name" : "ios",
"version" : "10.0"
},
{
"name" : "tvos",
"version" : "10.0"
}
],
"products" : [
{
"name" : "SwiftRegex",
"targets" : [
"SwiftRegex"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "SwiftRegexD",
"targets" : [
"SwiftRegexD"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftRegexTests",
"module_type" : "SwiftTarget",
"name" : "SwiftRegexTests",
"path" : "SwiftRegex5Tests",
"sources" : [
"SwiftRegex5Tests.swift"
],
"target_dependencies" : [
"SwiftRegex"
],
"type" : "test"
},
{
"c99name" : "SwiftRegexD",
"module_type" : "SwiftTarget",
"name" : "SwiftRegexD",
"path" : "Sources/SwiftRegexD",
"product_memberships" : [
"SwiftRegexD"
],
"sources" : [
"TupleRegex.swift"
],
"type" : "library"
},
{
"c99name" : "SwiftRegex",
"module_type" : "SwiftTarget",
"name" : "SwiftRegex",
"path" : "Sources/SwiftRegex",
"product_memberships" : [
"SwiftRegex"
],
"sources" : [
"TupleRegex.swift"
],
"type" : "library"
}
],
"tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/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: sha256:8e1c3aab9de7fa4f6e33977b6a4cee007e876da3e605dda0be6b9b9bf86aa951
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/7] Emitting module SwiftRegex
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:31:23: warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
29 | public struct RegexOptioned: RegexLiteral, Hashable {
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
| |- warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'defaultOptions' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'defaultOptions' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | public static var unmatchedGroup = ""
33 |
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:32:23: warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
32 | public static var unmatchedGroup = ""
| |- warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'unmatchedGroup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'unmatchedGroup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |
34 | let pattern: String
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:288:13: warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
286 | public typealias RegexImpl = TupleRegex
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
| |- warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'regexCache' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'regexCache' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
289 | private var cacheLock = NSLock()
290 |
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:289:13: warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
289 | private var cacheLock = NSLock()
| |- warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'cacheLock' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'cacheLock' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
290 |
291 | open class TupleRegex<T>: RegexLiteral, ExpressibleByStringLiteral {
[5/7] Compiling SwiftRegex TupleRegex.swift
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:31:23: warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
29 | public struct RegexOptioned: RegexLiteral, Hashable {
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
| |- warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'defaultOptions' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'defaultOptions' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | public static var unmatchedGroup = ""
33 |
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:32:23: warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
32 | public static var unmatchedGroup = ""
| |- warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'unmatchedGroup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'unmatchedGroup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |
34 | let pattern: String
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:288:13: warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
286 | public typealias RegexImpl = TupleRegex
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
| |- warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'regexCache' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'regexCache' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
289 | private var cacheLock = NSLock()
290 |
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:289:13: warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
289 | private var cacheLock = NSLock()
| |- warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'cacheLock' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'cacheLock' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
290 |
291 | open class TupleRegex<T>: RegexLiteral, ExpressibleByStringLiteral {
/host/spi-builder-workspace/Sources/SwiftRegex/TupleRegex.swift:449:100: error: escaping closure captures 'inout' parameter 'target'
436 | return String(target)
437 | }
438 | open func replacing<SP: StringProtocol>(target: inout SP, pos posin: Int? = nil,
| `- note: parameter 'target' is declared 'inout'
439 | group forceGroup: Int? = nil, count: UnsafeMutablePointer<Int>? = nil,
440 | templates: [T], global: Bool = false) {
:
447 |
448 | let nsTarget = NSString(string: String(target))
449 | regex.enumerateMatches(in: String(target), options: [], range: target.nsRange(pos: posin)) {
| `- error: escaping closure captures 'inout' parameter 'target'
450 | (match: NSTextCheckingResult?, flags: NSRegularExpression.MatchingFlags, stop: UnsafeMutablePointer<ObjCBool>) in
451 | guard let match = match else { return }
:
466 | .substring(with: NSMakeRange(pos, range.location - pos)))
467 | out.append(self.regex.replacementString(for: match, in:
468 | String(target), offset: 0, template: replacement))
| `- note: captured here
469 | pos = NSMaxRange(range)
470 | }
[6/7] Emitting module SwiftRegexD
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:31:23: warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
29 | public struct RegexOptioned: RegexLiteral, Hashable {
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
| |- warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'defaultOptions' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'defaultOptions' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | public static var unmatchedGroup = ""
33 |
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:32:23: warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
32 | public static var unmatchedGroup = ""
| |- warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'unmatchedGroup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'unmatchedGroup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |
34 | let pattern: String
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:288:13: warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
286 | public typealias RegexImpl = TupleRegex
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
| |- warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'regexCache' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'regexCache' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
289 | private var cacheLock = NSLock()
290 |
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:289:13: warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
289 | private var cacheLock = NSLock()
| |- warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'cacheLock' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'cacheLock' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
290 |
291 | open class TupleRegex<T>: RegexLiteral, ExpressibleByStringLiteral {
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:31:23: warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
29 | public struct RegexOptioned: RegexLiteral, Hashable {
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
| |- warning: static property 'defaultOptions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'defaultOptions' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'defaultOptions' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | public static var unmatchedGroup = ""
33 |
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:32:23: warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
30 |
31 | public static var defaultOptions: NSRegularExpression.Options = []
32 | public static var unmatchedGroup = ""
| |- warning: static property 'unmatchedGroup' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'unmatchedGroup' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property 'unmatchedGroup' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |
34 | let pattern: String
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:288:13: warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
286 | public typealias RegexImpl = TupleRegex
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
| |- warning: var 'regexCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'regexCache' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'regexCache' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
289 | private var cacheLock = NSLock()
290 |
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:289:13: warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
287 |
288 | private var regexCache = [RegexOptioned: NSRegularExpression]()
289 | private var cacheLock = NSLock()
| |- warning: var 'cacheLock' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert 'cacheLock' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var 'cacheLock' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
290 |
291 | open class TupleRegex<T>: RegexLiteral, ExpressibleByStringLiteral {
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/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:8e1c3aab9de7fa4f6e33977b6a4cee007e876da3e605dda0be6b9b9bf86aa951
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/5] Emitting module SwiftRegexD
[3/5] Compiling SwiftRegexD TupleRegex.swift
/host/spi-builder-workspace/Sources/SwiftRegexD/TupleRegex.swift:449:100: error: escaping closure captures 'inout' parameter 'target'
436 | return String(target)
437 | }
438 | open func replacing<SP: StringProtocol>(target: inout SP, pos posin: Int? = nil,
| `- note: parameter 'target' is declared 'inout'
439 | group forceGroup: Int? = nil, count: UnsafeMutablePointer<Int>? = nil,
440 | templates: [T], global: Bool = false) {
:
447 |
448 | let nsTarget = NSString(string: String(target))
449 | regex.enumerateMatches(in: String(target), options: [], range: target.nsRange(pos: posin)) {
| `- error: escaping closure captures 'inout' parameter 'target'
450 | (match: NSTextCheckingResult?, flags: NSRegularExpression.MatchingFlags, stop: UnsafeMutablePointer<ObjCBool>) in
451 | guard let match = match else { return }
:
466 | .substring(with: NSMakeRange(pos, range.location - pos)))
467 | out.append(self.regex.replacementString(for: match, in:
468 | String(target), offset: 0, template: replacement))
| `- note: captured here
469 | pos = NSMaxRange(range)
470 | }
[4/5] Emitting module SwiftRegex
BUILD FAILURE 6.1 linux