Swift Package IndexBuild Information
Failed to build SummarizedCollection, reference main (601224), with Swift 6.4 for iOS using Xcode 27.0 on 20 Sep 2026 22:44:01 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SummarizedCollection-Package -destination generic/platform=iOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jessegrosjean/SummarizedCollection.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/jessegrosjean/SummarizedCollection
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 6012243 Merge pull request #2 from mattmassicotte/feature/ci
Cloned https://github.com/jessegrosjean/SummarizedCollection.git
Revision (git rev-parse @):
60122430de3803e8b00b07ebe5bb53933fb8ef43
SUCCESS checkout https://github.com/jessegrosjean/SummarizedCollection.git at main
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/jessegrosjean/SummarizedCollection.git
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/apple/swift-collections-benchmark
Fetching from https://github.com/peripheryapp/periphery
Fetching from https://github.com/apple/swift-argument-parser
Fetching from https://github.com/apple/swift-system
Fetching from https://github.com/tadija/AEXML
Fetching from https://github.com/apple/swift-syntax
Fetching from https://github.com/tuist/xcodeproj
Fetching from https://github.com/jpsim/Yams
Fetching from https://github.com/ileitch/swift-filename-matcher
Fetching from https://github.com/kateinoigakukun/swift-indexstore
Fetching from https://github.com/kylef/PathKit.git
Fetching from https://github.com/kylef/Spectre.git
Creating working copy of package ‘swift-collections-benchmark’
Checking out 0.0.4 of package ‘swift-collections-benchmark’
Creating working copy of package ‘swift-argument-parser’
Checking out 1.8.2 of package ‘swift-argument-parser’
Creating working copy of package ‘periphery’
Checking out 2.21.2 of package ‘periphery’
Creating working copy of package ‘swift-indexstore’
Checking out 0.5.0 of package ‘swift-indexstore’
Creating working copy of package ‘AEXML’
Checking out 4.7.0 of package ‘AEXML’
Creating working copy of package ‘Yams’
Checking out 5.4.0 of package ‘Yams’
Creating working copy of package ‘Spectre’
Checking out 0.10.1 of package ‘Spectre’
Creating working copy of package ‘swift-filename-matcher’
Checking out 0.1.2 of package ‘swift-filename-matcher’
Creating working copy of package ‘swift-syntax’
Checking out 600.0.1 of package ‘swift-syntax’
Creating working copy of package ‘xcodeproj’
Checking out 8.27.7 of package ‘xcodeproj’
Creating working copy of package ‘swift-system’
Checking out 1.8.1 of package ‘swift-system’
Creating working copy of package ‘PathKit’
Checking out 1.0.1 of package ‘PathKit’
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
SummarizedCollection: /Users/admin/builder/spi-builder-workspace
swift-filename-matcher: https://github.com/ileitch/swift-filename-matcher @ 0.1.2
Spectre: https://github.com/kylef/Spectre.git @ 0.10.1
AEXML: https://github.com/tadija/AEXML @ 4.7.0
swift-collections-benchmark: https://github.com/apple/swift-collections-benchmark @ 0.0.4
SwiftIndexStore: https://github.com/kateinoigakukun/swift-indexstore @ 0.5.0
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
XcodeProj: https://github.com/tuist/xcodeproj @ 8.27.7
PathKit: https://github.com/kylef/PathKit.git @ 1.0.1
Periphery: https://github.com/peripheryapp/periphery @ 2.21.2
Yams: https://github.com/jpsim/Yams @ 5.4.0
swift-system: https://github.com/apple/swift-system @ 1.8.1
swift-syntax: https://github.com/apple/swift-syntax @ 600.0.1
resolved source packages: SummarizedCollection, swift-filename-matcher, Spectre, AEXML, swift-collections-benchmark, SwiftIndexStore, swift-argument-parser, XcodeProj, PathKit, Periphery, Yams, swift-system, swift-syntax
2026-09-20 18:42:57.025 xcodebuild[524:3011] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "periphery",
"requirement" : {
"range" : [
{
"lower_bound" : "2.0.0",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/peripheryapp/periphery"
},
{
"identity" : "swift-collections-benchmark",
"requirement" : {
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{
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"upper_bound" : "1.0.0"
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]
},
"type" : "sourceControl",
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}
],
"manifest_display_name" : "SummarizedCollection",
"name" : "SummarizedCollection",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "11.0"
},
{
"name" : "ios",
"version" : "14.0"
}
],
"products" : [
{
"name" : "SummarizedCollection",
"targets" : [
"SummarizedCollection"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "SummarizedCollectionBenchmark",
"targets" : [
"SummarizedCollectionBenchmark"
],
"type" : {
"executable" : null
}
}
],
"targets" : [
{
"c99name" : "_CollectionsUtilities",
"module_type" : "SwiftTarget",
"name" : "_CollectionsUtilities",
"path" : "Sources/_CollectionsUtilities",
"product_memberships" : [
"SummarizedCollection",
"SummarizedCollectionBenchmark"
],
"sources" : [
"Compatibility/Array+WithContiguousStorage Compatibility.swift",
"Compatibility/UnsafeMutableBufferPointer+SE-0370.swift",
"Compatibility/UnsafeMutablePointer+SE-0370.swift",
"Compatibility/UnsafeRawPointer extensions.swift",
"Debugging.swift",
"Descriptions.swift",
"IntegerTricks/FixedWidthInteger+roundUpToPowerOfTwo.swift",
"IntegerTricks/Integer rank.swift",
"IntegerTricks/UInt+first and last set bit.swift",
"IntegerTricks/UInt+reversed.swift",
"OSLog+Extensions.swift",
"RandomAccessCollection+Offsets.swift",
"UnsafeBitSet/_UnsafeBitSet+Index.swift",
"UnsafeBitSet/_UnsafeBitSet+_Word.swift",
"UnsafeBitSet/_UnsafeBitSet.swift",
"UnsafeBufferPointer+Extras.swift",
"UnsafeMutableBufferPointer+Extras.swift",
"_SortedCollection.swift",
"_UniqueCollection.swift"
],
"type" : "library"
},
{
"c99name" : "_CollectionsTestSupport",
"module_type" : "SwiftTarget",
"name" : "_CollectionsTestSupport",
"path" : "Sources/_CollectionsTestSupport",
"sources" : [
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"AssertionContexts/CollectionTestCase.swift",
"AssertionContexts/Combinatorics.swift",
"AssertionContexts/TestContext.swift",
"ConformanceCheckers/CheckBidirectionalCollection.swift",
"ConformanceCheckers/CheckCollection.swift",
"ConformanceCheckers/CheckComparable.swift",
"ConformanceCheckers/CheckEquatable.swift",
"ConformanceCheckers/CheckHashable.swift",
"ConformanceCheckers/CheckSequence.swift",
"MinimalTypes/MinimalBidirectionalCollection.swift",
"MinimalTypes/MinimalCollection.swift",
"MinimalTypes/MinimalDecoder.swift",
"MinimalTypes/MinimalEncoder.swift",
"MinimalTypes/MinimalIndex.swift",
"MinimalTypes/MinimalIterator.swift",
"MinimalTypes/MinimalMutableRandomAccessCollection.swift",
"MinimalTypes/MinimalMutableRangeReplaceableRandomAccessCollection.swift",
"MinimalTypes/MinimalRandomAccessCollection.swift",
"MinimalTypes/MinimalRangeReplaceableRandomAccessCollection.swift",
"MinimalTypes/MinimalSequence.swift",
"MinimalTypes/ResettableValue.swift",
"MinimalTypes/_CollectionState.swift",
"MinimalTypes/_MinimalCollectionCore.swift",
"Utilities/AllOnesRandomNumberGenerator.swift",
"Utilities/Box.swift",
"Utilities/DictionaryAPIChecker.swift",
"Utilities/HashableBox.swift",
"Utilities/IndexRangeCollection.swift",
"Utilities/Integer Square Root.swift",
"Utilities/LifetimeTracked.swift",
"Utilities/LifetimeTracker.swift",
"Utilities/RandomBoolArray.swift",
"Utilities/RandomStableSample.swift",
"Utilities/SeedableRandomNumberGenerator.swift",
"Utilities/SetAPIChecker.swift",
"Utilities/SortedCollectionAPIChecker.swift",
"Utilities/StringConvertibleValue.swift"
],
"target_dependencies" : [
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"type" : "library"
},
{
"c99name" : "SummarizedCollectionTests",
"module_type" : "SwiftTarget",
"name" : "SummarizedCollectionTests",
"path" : "Tests/SummarizedCollectionTests",
"sources" : [
"CollectionBoundaryTests.swift",
"IdentifiedListTests.swift",
"Outline/OutlineArray.swift",
"Outline/OutlineShared.swift",
"Outline/OutlineSummarizedTree.swift",
"PerformanceTests.swift",
"SummarizedArrayTests.swift",
"SummarizedTreeTests+Cursor.swift",
"SummarizedTreeTests.swift"
],
"target_dependencies" : [
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"type" : "test"
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{
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"module_type" : "SwiftTarget",
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"sources" : [
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"SummarizedTreeBenchmarks.swift",
"SummarizedTreeIdentfiedListBenchmarks.swift",
"main.swift"
],
"target_dependencies" : [
"SummarizedCollection",
"_CollectionsUtilities"
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"type" : "executable"
},
{
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"product_memberships" : [
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"sources" : [
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"Protocols/CollectionBoundary.swift",
"Protocols/CollectionIndexDimension.swift",
"Protocols/IdentifiedCollection.swift",
"Protocols/SummarizedCollection+Dimension.swift",
"Protocols/SummarizedCollection+Summary.swift",
"Protocols/SummarizedCollection.swift",
"SummarizedTree/Node+Debug.swift",
"SummarizedTree/Node+Handle.swift",
"SummarizedTree/Node+InnerStorage.swift",
"SummarizedTree/Node+LeafStorage.swift",
"SummarizedTree/Node+Storage+SubSequence.swift",
"SummarizedTree/Node+Storage.swift",
"SummarizedTree/Node+UnmanagedNode.swift",
"SummarizedTree/Node.swift",
"SummarizedTree/SummarizedTree+Builder.swift",
"SummarizedTree/SummarizedTree+CoreConcat.swift",
"SummarizedTree/SummarizedTree+CoreReplace.swift",
"SummarizedTree/SummarizedTree+CoreSplit.swift",
"SummarizedTree/SummarizedTree+Cursor.swift",
"SummarizedTree/SummarizedTree+ElementsBuffer.swift",
"SummarizedTree/SummarizedTree+ExpressibleByArrayLiteral.swift",
"SummarizedTree/SummarizedTree+IdentifiedCollection.swift",
"SummarizedTree/SummarizedTree+Index.swift",
"SummarizedTree/SummarizedTree+Initializers.swift",
"SummarizedTree/SummarizedTree+RangeReplaceableCollection.swift",
"SummarizedTree/SummarizedTree+Sequence.swift",
"SummarizedTree/SummarizedTree+SubSequence.swift",
"SummarizedTree/SummarizedTree+SummarizedCollection.swift",
"SummarizedTree/SummarizedTree+Testing.swift",
"SummarizedTree/SummarizedTree.swift",
"SummarizedTree/SummarizedTreeContext+Extension.swift",
"SummarizedTree/SummarizedTreeContext.swift"
],
"target_dependencies" : [
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"tools_version" : "5.7"
}
{
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2026-09-20 18:43:41.788 xcodebuild[1114:6198] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SummarizedCollection-Package -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme SummarizedCollection-Package -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
XcodeProj: https://github.com/tuist/xcodeproj @ 8.27.7
PathKit: https://github.com/kylef/PathKit.git @ 1.0.1
Yams: https://github.com/jpsim/Yams @ 5.4.0
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
SummarizedCollection: /Users/admin/builder/spi-builder-workspace
swift-filename-matcher: https://github.com/ileitch/swift-filename-matcher @ 0.1.2
swift-collections-benchmark: https://github.com/apple/swift-collections-benchmark @ 0.0.4
swift-system: https://github.com/apple/swift-system @ 1.8.1
Periphery: https://github.com/peripheryapp/periphery @ 2.21.2
swift-syntax: https://github.com/apple/swift-syntax @ 600.0.1
Spectre: https://github.com/kylef/Spectre.git @ 0.10.1
AEXML: https://github.com/tadija/AEXML @ 4.7.0
SwiftIndexStore: https://github.com/kateinoigakukun/swift-indexstore @ 0.5.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
Target 'SummarizedCollectionBenchmark-product' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
➜ Explicit dependency on target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target 'CollectionsBenchmark-product' in project 'swift-collections-benchmark'
Target 'CollectionsBenchmark-product' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'CollectionsBenchmark' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'CollectionsBenchmark' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
Target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
Target 'SummarizedCollection-product' in project 'SummarizedCollection'
➜ Explicit dependency on target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
Target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
Target '_CollectionsUtilities' in project 'SummarizedCollection' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 3dfe54818d7bdc5b7c37ef4a2a5723da
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/3dfe54818d7bdc5b7c37ef4a2a5723da.xcbuilddata
error: The package product 'CollectionsBenchmark-product' requires minimum platform version 18.0 for the iOS platform, but this target supports 15.0 (in target 'SummarizedCollectionBenchmark-product' from project 'SummarizedCollection')
2026-09-20 18:43:50.365 xcodebuild[1124:6296] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace SummarizedCollection with scheme SummarizedCollection-Package
(1 failure)
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
swift-system: https://github.com/apple/swift-system @ 1.8.1
swift-syntax: https://github.com/apple/swift-syntax @ 600.0.1
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
Yams: https://github.com/jpsim/Yams @ 5.4.0
Periphery: https://github.com/peripheryapp/periphery @ 2.21.2
SummarizedCollection: /Users/admin/builder/spi-builder-workspace
swift-collections-benchmark: https://github.com/apple/swift-collections-benchmark @ 0.0.4
AEXML: https://github.com/tadija/AEXML @ 4.7.0
PathKit: https://github.com/kylef/PathKit.git @ 1.0.1
SwiftIndexStore: https://github.com/kateinoigakukun/swift-indexstore @ 0.5.0
swift-filename-matcher: https://github.com/ileitch/swift-filename-matcher @ 0.1.2
Spectre: https://github.com/kylef/Spectre.git @ 0.10.1
XcodeProj: https://github.com/tuist/xcodeproj @ 8.27.7
resolved source packages: swift-system, swift-syntax, swift-argument-parser, Yams, Periphery, SummarizedCollection, swift-collections-benchmark, AEXML, PathKit, SwiftIndexStore, swift-filename-matcher, Spectre, XcodeProj
2026-09-20 18:43:55.470 xcodebuild[1253:7012] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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"Debugging.swift",
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"UnsafeBitSet/_UnsafeBitSet+_Word.swift",
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{
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"AssertionContexts/Combinatorics.swift",
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"MinimalTypes/MinimalRangeReplaceableRandomAccessCollection.swift",
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"Utilities/Box.swift",
"Utilities/DictionaryAPIChecker.swift",
"Utilities/HashableBox.swift",
"Utilities/IndexRangeCollection.swift",
"Utilities/Integer Square Root.swift",
"Utilities/LifetimeTracked.swift",
"Utilities/LifetimeTracker.swift",
"Utilities/RandomBoolArray.swift",
"Utilities/RandomStableSample.swift",
"Utilities/SeedableRandomNumberGenerator.swift",
"Utilities/SetAPIChecker.swift",
"Utilities/SortedCollectionAPIChecker.swift",
"Utilities/StringConvertibleValue.swift"
],
"target_dependencies" : [
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],
"type" : "library"
},
{
"c99name" : "SummarizedCollectionTests",
"module_type" : "SwiftTarget",
"name" : "SummarizedCollectionTests",
"path" : "Tests/SummarizedCollectionTests",
"sources" : [
"CollectionBoundaryTests.swift",
"IdentifiedListTests.swift",
"Outline/OutlineArray.swift",
"Outline/OutlineShared.swift",
"Outline/OutlineSummarizedTree.swift",
"PerformanceTests.swift",
"SummarizedArrayTests.swift",
"SummarizedTreeTests+Cursor.swift",
"SummarizedTreeTests.swift"
],
"target_dependencies" : [
"SummarizedCollection",
"_CollectionsTestSupport"
],
"type" : "test"
},
{
"c99name" : "SummarizedCollectionBenchmark",
"module_type" : "SwiftTarget",
"name" : "SummarizedCollectionBenchmark",
"path" : "Sources/SummarizedCollectionBenchmark",
"product_dependencies" : [
"CollectionsBenchmark"
],
"product_memberships" : [
"SummarizedCollectionBenchmark"
],
"sources" : [
"ArrayBenchmarks.swift",
"SummarizedTreeBenchmarks.swift",
"SummarizedTreeIdentfiedListBenchmarks.swift",
"main.swift"
],
"target_dependencies" : [
"SummarizedCollection",
"_CollectionsUtilities"
],
"type" : "executable"
},
{
"c99name" : "SummarizedCollection",
"module_type" : "SwiftTarget",
"name" : "SummarizedCollection",
"path" : "Sources/SummarizedCollection",
"product_memberships" : [
"SummarizedCollection",
"SummarizedCollectionBenchmark"
],
"sources" : [
"IdentifiedList.swift",
"List.swift",
"Protocols/CollectionBoundary.swift",
"Protocols/CollectionIndexDimension.swift",
"Protocols/IdentifiedCollection.swift",
"Protocols/SummarizedCollection+Dimension.swift",
"Protocols/SummarizedCollection+Summary.swift",
"Protocols/SummarizedCollection.swift",
"SummarizedTree/Node+Debug.swift",
"SummarizedTree/Node+Handle.swift",
"SummarizedTree/Node+InnerStorage.swift",
"SummarizedTree/Node+LeafStorage.swift",
"SummarizedTree/Node+Storage+SubSequence.swift",
"SummarizedTree/Node+Storage.swift",
"SummarizedTree/Node+UnmanagedNode.swift",
"SummarizedTree/Node.swift",
"SummarizedTree/SummarizedTree+Builder.swift",
"SummarizedTree/SummarizedTree+CoreConcat.swift",
"SummarizedTree/SummarizedTree+CoreReplace.swift",
"SummarizedTree/SummarizedTree+CoreSplit.swift",
"SummarizedTree/SummarizedTree+Cursor.swift",
"SummarizedTree/SummarizedTree+ElementsBuffer.swift",
"SummarizedTree/SummarizedTree+ExpressibleByArrayLiteral.swift",
"SummarizedTree/SummarizedTree+IdentifiedCollection.swift",
"SummarizedTree/SummarizedTree+Index.swift",
"SummarizedTree/SummarizedTree+Initializers.swift",
"SummarizedTree/SummarizedTree+RangeReplaceableCollection.swift",
"SummarizedTree/SummarizedTree+Sequence.swift",
"SummarizedTree/SummarizedTree+SubSequence.swift",
"SummarizedTree/SummarizedTree+SummarizedCollection.swift",
"SummarizedTree/SummarizedTree+Testing.swift",
"SummarizedTree/SummarizedTree.swift",
"SummarizedTree/SummarizedTreeContext+Extension.swift",
"SummarizedTree/SummarizedTreeContext.swift"
],
"target_dependencies" : [
"_CollectionsUtilities"
],
"type" : "library"
}
],
"tools_version" : "5.7"
}
{
"workspace" : {
"name" : "SummarizedCollection",
"schemes" : [
"SummarizedCollection",
"SummarizedCollection-Package",
"SummarizedCollectionBenchmark",
"swift-collections-benchmark"
]
}
}
2026-09-20 18:43:58.196 xcodebuild[1270:7130] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SummarizedCollection-Package -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme SummarizedCollection-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
Periphery: https://github.com/peripheryapp/periphery @ 2.21.2
Yams: https://github.com/jpsim/Yams @ 5.4.0
swift-filename-matcher: https://github.com/ileitch/swift-filename-matcher @ 0.1.2
swift-collections-benchmark: https://github.com/apple/swift-collections-benchmark @ 0.0.4
SummarizedCollection: /Users/admin/builder/spi-builder-workspace
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
AEXML: https://github.com/tadija/AEXML @ 4.7.0
PathKit: https://github.com/kylef/PathKit.git @ 1.0.1
swift-system: https://github.com/apple/swift-system @ 1.8.1
Spectre: https://github.com/kylef/Spectre.git @ 0.10.1
SwiftIndexStore: https://github.com/kateinoigakukun/swift-indexstore @ 0.5.0
XcodeProj: https://github.com/tuist/xcodeproj @ 8.27.7
swift-syntax: https://github.com/apple/swift-syntax @ 600.0.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
Target 'SummarizedCollectionBenchmark-product' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
➜ Explicit dependency on target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target 'CollectionsBenchmark-product' in project 'swift-collections-benchmark'
Target 'CollectionsBenchmark-product' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'CollectionsBenchmark' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'CollectionsBenchmark' in project 'swift-collections-benchmark'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
Target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
Target 'SummarizedCollection-product' in project 'SummarizedCollection'
➜ Explicit dependency on target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
Target 'SummarizedCollection' in project 'SummarizedCollection'
➜ Explicit dependency on target '_CollectionsUtilities' in project 'SummarizedCollection'
Target '_CollectionsUtilities' in project 'SummarizedCollection' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'CollectionsBenchmark-product' requires minimum platform version 18.0 for the iOS platform, but this target supports 15.0 (in target 'SummarizedCollectionBenchmark-product' from project 'SummarizedCollection')
2026-09-20 18:44:00.721 xcodebuild[1280:7210] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace SummarizedCollection with scheme SummarizedCollection-Package
(1 failure)
BUILD FAILURE 6.4 iOS