Swift Package IndexBuild Information
Successful build of Sigil, reference 1.1.0 (1d0ced), with Swift 6.1 for macOS (SPM) on 8 Mar 2026 12:53:13 UTC.
Swift 6 data race errors: 2
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
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/loopwerk/Sigil.git
Reference: 1.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/loopwerk/Sigil
* tag 1.1.0 -> FETCH_HEAD
HEAD is now at 1d0ced2 feat: cssMapping is now optional - when nil, no syntax highlight classes or even the spans are applied
Cloned https://github.com/loopwerk/Sigil.git
Revision (git rev-parse @):
1d0ced21bcb2746716dc3c1a707240257f1b974c
SUCCESS checkout https://github.com/loopwerk/Sigil.git at 1.1.0
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Build
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Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/loopwerk/Sigil.git
https://github.com/loopwerk/Sigil.git
{
"dependencies" : [
{
"identity" : "swift-docc-symbolkit",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-docc-symbolkit"
}
],
"manifest_display_name" : "Sigil",
"name" : "Sigil",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "Sigil",
"targets" : [
"Sigil"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SigilTests",
"module_type" : "SwiftTarget",
"name" : "SigilTests",
"path" : "Tests/SigilTests",
"resources" : [
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SigilTests/Fixtures",
"rule" : {
"copy" : {
}
}
}
],
"sources" : [
"SigilTests.swift"
],
"target_dependencies" : [
"Sigil"
],
"type" : "test"
},
{
"c99name" : "Sigil",
"module_type" : "SwiftTarget",
"name" : "Sigil",
"path" : "Sources/Sigil",
"product_dependencies" : [
"SymbolKit"
],
"product_memberships" : [
"Sigil"
],
"sources" : [
"Sigil.swift"
],
"type" : "library"
}
],
"tools_version" : "5.5"
}
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
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/54] Compiling SymbolKit GenericConstraint.swift
[5/54] Compiling SymbolKit GenericParameter.swift
[6/54] Compiling SymbolKit Generics.swift
[7/54] Compiling SymbolKit Namespace.swift
[8/54] Compiling SymbolKit Symbol.swift
[9/59] Compiling SymbolKit DeclarationFragments.swift
[10/59] Compiling SymbolKit Fragment.swift
[11/59] Compiling SymbolKit FragmentKind.swift
[12/59] Compiling SymbolKit FunctionParameter.swift
[13/59] Compiling SymbolKit FunctionSignature.swift
[14/59] Compiling SymbolKit HTTP.swift
[15/59] Compiling SymbolKit SymbolKind.swift
[16/59] Compiling SymbolKit ValueConstraints.swift
[17/59] Compiling SymbolKit SymbolGraph+Overloads.swift
[18/59] Compiling SymbolKit SymbolGraph.swift
[19/59] Compiling SymbolKit GraphCollector.swift
[20/59] Compiling SymbolKit OverloadData.swift
[21/59] Compiling SymbolKit PlistDetails.swift
[22/59] Compiling SymbolKit SPI.swift
[23/59] Compiling SymbolKit Snippet.swift
[24/59] Compiling SymbolKit Extension.swift
[25/59] Emitting module SymbolKit
[26/59] Compiling SymbolKit Relationship.swift
[27/59] Compiling SymbolKit RelationshipKind.swift
[28/59] Compiling SymbolKit SourceOrigin.swift
[29/59] Compiling SymbolKit GenericConstraints.swift
[30/59] Compiling SymbolKit Swift.swift
[31/59] Compiling SymbolKit SemanticVersion.swift
[32/59] Compiling SymbolKit Mixin+Equals.swift
[33/59] Compiling SymbolKit Mixin+Hash.swift
[34/59] Compiling SymbolKit Mixin.swift
[35/59] Compiling SymbolKit AnyScalar.swift
[36/59] Compiling SymbolKit LineList.swift
[37/59] Compiling SymbolKit Position.swift
[38/59] Compiling SymbolKit Identifier.swift
[39/59] Compiling SymbolKit KindIdentifier.swift
[40/59] Compiling SymbolKit Location.swift
[41/59] Compiling SymbolKit Mutability.swift
[42/59] Compiling SymbolKit Names.swift
[43/59] Compiling SymbolKit SourceRange.swift
[44/59] Compiling SymbolKit Metadata.swift
[45/59] Compiling SymbolKit Module.swift
[46/59] Compiling SymbolKit OperatingSystem.swift
[47/59] Compiling SymbolKit Platform.swift
[48/59] Compiling SymbolKit ReferenceLocation.swift
[49/59] Compiling SymbolKit AccessControl.swift
[50/59] Compiling SymbolKit AlternateDeclarations.swift
[51/59] Compiling SymbolKit Availability.swift
[52/59] Compiling SymbolKit AvailabilityItem.swift
[53/59] Compiling SymbolKit Domain.swift
[54/59] Compiling SymbolKit DeclarationFragments+Simplify.swift
[55/59] Compiling SymbolKit UnifiedSymbol+Encodable.swift
[56/59] Compiling SymbolKit UnifiedSymbol.swift
[57/59] Compiling SymbolKit UnifiedSymbolGraph+Encodable.swift
[58/59] Compiling SymbolKit UnifiedSymbolGraph+Overloads.swift
[59/59] Compiling SymbolKit UnifiedSymbolGraph.swift
[60/61] Emitting module Sigil
/Users/admin/builder/spi-builder-workspace/Sources/Sigil/Sigil.swift:31:21: warning: static property 'prism' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
4 | ///
5 | /// Use `nil` for any property to render that token as plain text without a wrapper `<span>`.
6 | public struct CSSMapping {
| `- note: consider making struct 'CSSMapping' conform to the 'Sendable' protocol
7 | public var keyword: String?
8 | public var attribute: String?
:
29 |
30 | /// [Prism](https://prismjs.com)-compatible CSS classes.
31 | public static let prism = CSSMapping(
| |- warning: static property 'prism' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'prism' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | keyword: "token keyword",
33 | attribute: "token attribute atrule",
/Users/admin/builder/spi-builder-workspace/Sources/Sigil/Sigil.swift:40:21: warning: static property 'highlightJS' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
4 | ///
5 | /// Use `nil` for any property to render that token as plain text without a wrapper `<span>`.
6 | public struct CSSMapping {
| `- note: consider making struct 'CSSMapping' conform to the 'Sendable' protocol
7 | public var keyword: String?
8 | public var attribute: String?
:
38 |
39 | /// [highlight.js](https://highlightjs.org)-compatible CSS classes.
40 | public static let highlightJS = CSSMapping(
| |- warning: static property 'highlightJS' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'highlightJS' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
41 | keyword: "hljs-keyword",
42 | attribute: "hljs-meta",
[61/61] Compiling Sigil Sigil.swift
/Users/admin/builder/spi-builder-workspace/Sources/Sigil/Sigil.swift:31:21: warning: static property 'prism' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
4 | ///
5 | /// Use `nil` for any property to render that token as plain text without a wrapper `<span>`.
6 | public struct CSSMapping {
| `- note: consider making struct 'CSSMapping' conform to the 'Sendable' protocol
7 | public var keyword: String?
8 | public var attribute: String?
:
29 |
30 | /// [Prism](https://prismjs.com)-compatible CSS classes.
31 | public static let prism = CSSMapping(
| |- warning: static property 'prism' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'prism' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | keyword: "token keyword",
33 | attribute: "token attribute atrule",
/Users/admin/builder/spi-builder-workspace/Sources/Sigil/Sigil.swift:40:21: warning: static property 'highlightJS' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
4 | ///
5 | /// Use `nil` for any property to render that token as plain text without a wrapper `<span>`.
6 | public struct CSSMapping {
| `- note: consider making struct 'CSSMapping' conform to the 'Sendable' protocol
7 | public var keyword: String?
8 | public var attribute: String?
:
38 |
39 | /// [highlight.js](https://highlightjs.org)-compatible CSS classes.
40 | public static let highlightJS = CSSMapping(
| |- warning: static property 'highlightJS' is not concurrency-safe because non-'Sendable' type 'CSSMapping' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'highlightJS' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
41 | keyword: "hljs-keyword",
42 | attribute: "hljs-meta",
Build complete! (8.34s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.03s)
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at main (4c4ff01)
Build complete.
{
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"branch" : [
"main"
]
},
"type" : "sourceControl",
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}
],
"manifest_display_name" : "Sigil",
"name" : "Sigil",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
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"targets" : [
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"resources" : [
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"rule" : {
"copy" : {
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],
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],
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"type" : "test"
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{
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"path" : "Sources/Sigil",
"product_dependencies" : [
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],
"product_memberships" : [
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],
"sources" : [
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],
"type" : "library"
}
],
"tools_version" : "5.5"
}
Done.