Swift Package IndexBuild Information
Successful build of RelativeCollections, reference main (1823a4), with Swift 6.4 for macOS (SPM) on 22 Sep 2026 02:46:42 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ChimeHQ/RelativeCollections.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ChimeHQ/RelativeCollections
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 1823a41 Make RelativeArray Sendable
Cloned https://github.com/ChimeHQ/RelativeCollections.git
Revision (git rev-parse @):
1823a416259c481f68accd4bc7f6a781cc888662
SUCCESS checkout https://github.com/ChimeHQ/RelativeCollections.git at main
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Build
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Selected platform: macosSpm
Swift version: 6.4
Building package at path: $PWD
https://github.com/ChimeHQ/RelativeCollections.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 95]
[Planning deferred tasks]
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[26 / 43] RelativeCollectionsInternal
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[66 / 83] RelativeCollectionsInternal
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[84 / 88] RelativeCollectionsInternal
Build complete! (7.80 sec)
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList.swift:155:8: [1;33mwarning: [1;39mvariable 'branchEntry' was never mutated; consider changing to 'let' constant[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
[0;36m153 |[0;0m }
[0;36m154 |[0;0m
[0;36m155 |[0;0m var branchEntry = branch.storage[entryIndex]
[0;36m|[0;0m `- [1;33mwarning: [1;39mvariable 'branchEntry' was never mutated; consider changing to 'let' constant[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
[0;36m156 |[0;0m let subNode = branchEntry.value
[0;36m157 |[0;0m let adjustedTarget = target - branchEntry.dependency.count
[#VariableNeverMutated]: <https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated>
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList+Node.swift:74:12: [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m72 |[0;0m let config = Storage.Configuration(
[0;36m73 |[0;0m initial: NodeWeight(count: 0, weight: configuration.initial),
[0;36m74 |[0;0m add: { NodeWeight(count: $0.count + $1.count, weight: add($0.weight, $1.weight)) },
[0;36m|[0;0m `- [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m75 |[0;0m subtract: { NodeWeight(count: $0.count - $1.count, weight: sub($0.weight, $1.weight)) }
[0;36m76 |[0;0m )
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList+Node.swift:75:17: [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m73 |[0;0m initial: NodeWeight(count: 0, weight: configuration.initial),
[0;36m74 |[0;0m add: { NodeWeight(count: $0.count + $1.count, weight: add($0.weight, $1.weight)) },
[0;36m75 |[0;0m subtract: { NodeWeight(count: $0.count - $1.count, weight: sub($0.weight, $1.weight)) }
[0;36m|[0;0m `- [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m76 |[0;0m )
[0;36m77 |[0;0m
[#SendableMetatypes]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes>
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeArray.swift:74:19: [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m72 |[0;0m public init() {
[0;36m73 |[0;0m self.initial = Weight.zero
[0;36m74 |[0;0m self.add = { $0 + $1 }
[0;36m|[0;0m `- [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m75 |[0;0m self.subtract = { $0 - $1 }
[0;36m76 |[0;0m }
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeArray.swift:75:24: [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m73 |[0;0m self.initial = Weight.zero
[0;36m74 |[0;0m self.add = { $0 + $1 }
[0;36m75 |[0;0m self.subtract = { $0 - $1 }
[0;36m|[0;0m `- [1;33mwarning: [1;39mcapture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes\SendableMetatypes]8;;\]
[0;36m76 |[0;0m }
[0;36m77 |[0;0m }
[#SendableMetatypes]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes>
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "RelativeCollections",
"name" : "RelativeCollections",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "RelativeCollections",
"targets" : [
"RelativeCollections"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "RelativeCollectionsTests",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsTests",
"path" : "Tests/RelativeCollectionsTests",
"sources" : [
"RelativeArrayTests.swift",
"RelativeListTests.swift"
],
"target_dependencies" : [
"RelativeCollections"
],
"type" : "test"
},
{
"c99name" : "RelativeCollectionsInternalTests",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsInternalTests",
"path" : "Tests/RelativeCollectionsInternalTests",
"sources" : [
"BinarySearchTests.swift",
"SkipListTests.swift"
],
"target_dependencies" : [
"RelativeCollectionsInternal"
],
"type" : "test"
},
{
"c99name" : "RelativeCollectionsInternal",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsInternal",
"path" : "Sources/RelativeCollectionsInternal",
"product_memberships" : [
"RelativeCollections"
],
"sources" : [
"Collection+BinarySearch.swift",
"Collection+Halve.swift",
"Collection+RangeQuery.swift",
"RandomAccessCollection+Safe.swift",
"SkipList.swift"
],
"type" : "library"
},
{
"c99name" : "RelativeCollections",
"module_type" : "SwiftTarget",
"name" : "RelativeCollections",
"path" : "Sources/RelativeCollections",
"product_memberships" : [
"RelativeCollections"
],
"sources" : [
"RelativeArray.swift",
"RelativeList+Node.swift",
"RelativeList.swift"
],
"target_dependencies" : [
"RelativeCollectionsInternal"
],
"type" : "library"
}
],
"tools_version" : "5.10"
}
Done.