Build Information
Failed to build SummarizedCollection, reference main (601224), with Swift 6.3 for macOS (SPM) on 14 Apr 2026 18:41:37 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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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
Fetching https://github.com/apple/swift-collections-benchmark
Fetching https://github.com/kateinoigakukun/swift-indexstore
Fetching https://github.com/jpsim/Yams
Fetching https://github.com/apple/swift-argument-parser
Fetching https://github.com/peripheryapp/swift-syntax
Fetching https://github.com/apple/swift-system
Fetching https://github.com/tadija/AEXML
[1/2155] Fetching aexml
[66/2485] Fetching aexml, swift-indexstore
[73/2991] Fetching aexml, swift-indexstore, swift-collections-benchmark
[568/8592] Fetching aexml, swift-indexstore, swift-collections-benchmark, swift-system
[569/20143] Fetching aexml, swift-indexstore, swift-collections-benchmark, swift-system, yams
[1835/37666] Fetching aexml, swift-indexstore, swift-collections-benchmark, swift-system, yams, swift-argument-parser
[3990/72774] Fetching aexml, swift-indexstore, swift-collections-benchmark, swift-system, yams, swift-argument-parser, swift-syntax
Fetched https://github.com/apple/swift-collections-benchmark from cache (1.44s)
Fetched https://github.com/kateinoigakukun/swift-indexstore from cache (1.44s)
[40886/71938] Fetching aexml, swift-system, yams, swift-argument-parser, swift-syntax
Fetching https://github.com/peripheryapp/periphery
Fetching https://github.com/kylef/PathKit.git
Fetched https://github.com/apple/swift-argument-parser from cache (1.54s)
[28856/54415] Fetching aexml, swift-system, yams, swift-syntax
Fetching https://github.com/kylef/Spectre.git
[51067/55867] Fetching aexml, swift-system, yams, swift-syntax, pathkit
[51762/56888] Fetching aexml, swift-system, yams, swift-syntax, pathkit, spectre
Fetched https://github.com/kylef/Spectre.git from cache (0.81s)
[54481/55867] Fetching aexml, swift-system, yams, swift-syntax, pathkit
Fetching https://github.com/tuist/xcodeproj
[55868/70953] Fetching aexml, swift-system, yams, swift-syntax, pathkit, periphery
Fetched https://github.com/jpsim/Yams from cache (2.64s)
Fetched https://github.com/peripheryapp/swift-syntax from cache (2.64s)
Fetched https://github.com/apple/swift-system from cache (2.64s)
Fetched https://github.com/tadija/AEXML from cache (2.65s)
[1754/16538] Fetching pathkit, periphery
[11712/40971] Fetching pathkit, periphery, xcodeproj
Fetched https://github.com/kylef/PathKit.git from cache (2.90s)
Fetched https://github.com/peripheryapp/periphery from cache (2.90s)
Computing version for https://github.com/apple/swift-collections-benchmark
Fetched https://github.com/tuist/xcodeproj from cache (2.00s)
Computed https://github.com/apple/swift-collections-benchmark at 0.0.3 (5.22s)
Computing version for https://github.com/peripheryapp/periphery
Computed https://github.com/peripheryapp/periphery at 2.11.0 (0.79s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.2.1 (0.74s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.2.0 (0.76s)
Computing version for https://github.com/tuist/xcodeproj
Computed https://github.com/tuist/xcodeproj at 8.8.0 (0.65s)
Computing version for https://github.com/peripheryapp/swift-syntax
Computed https://github.com/peripheryapp/swift-syntax at 1.0.0 (0.73s)
Computing version for https://github.com/kateinoigakukun/swift-indexstore
Computed https://github.com/kateinoigakukun/swift-indexstore at 0.2.0 (0.66s)
Computing version for https://github.com/tadija/AEXML
Computed https://github.com/tadija/AEXML at 4.6.1 (0.67s)
Computing version for https://github.com/jpsim/Yams
Computed https://github.com/jpsim/Yams at 5.0.1 (0.67s)
Computing version for https://github.com/kylef/PathKit.git
Computed https://github.com/kylef/PathKit.git at 1.0.1 (2.35s)
Computing version for https://github.com/kylef/Spectre.git
Computed https://github.com/kylef/Spectre.git at 0.10.1 (0.70s)
Creating working copy for https://github.com/kylef/PathKit.git
Working copy of https://github.com/kylef/PathKit.git resolved at 1.0.1
Creating working copy for https://github.com/jpsim/Yams
Working copy of https://github.com/jpsim/Yams resolved at 5.0.1
Creating working copy for https://github.com/tadija/AEXML
Working copy of https://github.com/tadija/AEXML resolved at 4.6.1
Creating working copy for https://github.com/kylef/Spectre.git
Working copy of https://github.com/kylef/Spectre.git resolved at 0.10.1
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.2.0
Creating working copy for https://github.com/peripheryapp/swift-syntax
Working copy of https://github.com/peripheryapp/swift-syntax resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.2.1
Creating working copy for https://github.com/kateinoigakukun/swift-indexstore
Working copy of https://github.com/kateinoigakukun/swift-indexstore resolved at 0.2.0
Creating working copy for https://github.com/peripheryapp/periphery
Working copy of https://github.com/peripheryapp/periphery resolved at 2.11.0
Creating working copy for https://github.com/tuist/xcodeproj
Working copy of https://github.com/tuist/xcodeproj resolved at 8.8.0
Creating working copy for https://github.com/apple/swift-collections-benchmark
Working copy of https://github.com/apple/swift-collections-benchmark resolved at 0.0.3
========================================
ResolveProductDependencies
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Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "summarizedcollection",
"name": "SummarizedCollection",
"url": "https://github.com/jessegrosjean/SummarizedCollection.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SummarizedCollection",
"traits": [
"default"
],
"dependencies": [
{
"identity": "swift-collections-benchmark",
"name": "swift-collections-benchmark",
"url": "https://github.com/apple/swift-collections-benchmark",
"version": "0.0.4",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-collections-benchmark",
"traits": [
"default"
],
"dependencies": [
{
"identity": "swift-argument-parser",
"name": "swift-argument-parser",
"url": "https://github.com/apple/swift-argument-parser",
"version": "1.7.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
"traits": [
"default"
],
"dependencies": [
]
},
{
"identity": "swift-system",
"name": "swift-system",
"url": "https://github.com/apple/swift-system",
"version": "1.6.4",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-system",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
]
}
Fetching https://github.com/jessegrosjean/SummarizedCollection.git
[1/900] Fetching summarizedcollection
Fetched https://github.com/jessegrosjean/SummarizedCollection.git from cache (0.96s)
Fetching https://github.com/apple/swift-collections-benchmark from cache
Fetched https://github.com/apple/swift-collections-benchmark from cache (0.52s)
Computing version for https://github.com/apple/swift-collections-benchmark
Computed https://github.com/apple/swift-collections-benchmark at 0.0.4 (1.28s)
Fetching https://github.com/apple/swift-system from cache
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.65s)
Fetched https://github.com/apple/swift-system from cache (0.65s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (1.45s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.7.1 (0.73s)
Creating working copy for https://github.com/jessegrosjean/SummarizedCollection.git
Working copy of https://github.com/jessegrosjean/SummarizedCollection.git resolved at main (6012243)
Creating working copy for https://github.com/apple/swift-collections-benchmark
Working copy of https://github.com/apple/swift-collections-benchmark resolved at 0.0.4
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.7.1
Found 1 product dependencies
- swift-collections-benchmark
========================================
Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/jessegrosjean/SummarizedCollection.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin Generate Manual
Building for debugging...
[1/15] Write sources
[6/15] Write SummarizedCollectionBenchmark-entitlement.plist
[6/15] Write sources
[10/15] Compiling CSystem shims.c
[11/15] Write swift-version--6988338F2F200930.txt
[13/57] Compiling ArgumentParserToolInfo ToolInfo.swift
[14/57] Emitting module ArgumentParserToolInfo
[15/95] Compiling ArgumentParser FishCompletionsGenerator.swift
[16/95] Compiling ArgumentParser ZshCompletionsGenerator.swift
[17/95] Compiling ArgumentParser BashCompletionsGenerator.swift
[18/95] Compiling ArgumentParser CompletionsGenerator.swift
[19/95] Compiling ArgumentParser CommandParser.swift
[20/95] Compiling ArgumentParser InputKey.swift
[21/95] Compiling ArgumentParser Parsed.swift
[22/95] Compiling ArgumentParser ParsedValues.swift
[23/95] Compiling ArgumentParser InputOrigin.swift
[24/95] Compiling ArgumentParser Name.swift
[25/95] Compiling ArgumentParser ArgumentDefinition.swift
[26/95] Compiling ArgumentParser ArgumentSet.swift
[27/97] Compiling ArgumentParser NameSpecification.swift
[28/97] Compiling ArgumentParser Option.swift
[29/97] Compiling ArgumentParser OptionGroup.swift
[30/97] Compiling ArgumentParser ArgumentDecoder.swift
[31/97] Compiling ArgumentParser Flag.swift
[32/97] Emitting module SystemPackage
[33/97] Compiling ArgumentParser ParsableArguments.swift
[34/97] Compiling ArgumentParser ParsableArgumentsValidation.swift
[35/97] Compiling ArgumentParser ParsableCommand.swift
[36/97] Compiling SystemPackage Util.swift
[37/97] Compiling SystemPackage UtilConsumers.swift
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/UnsafeMutableBufferPointer+Extras.swift:102:18: error: ambiguous use of 'initialize(fromContentsOf:)'
100 | fromContentsOf source: C
101 | ) where Base == UnsafeMutableBufferPointer<C.Element> {
102 | let i = self.initialize(fromContentsOf: source)
| `- error: ambiguous use of 'initialize(fromContentsOf:)'
103 | assert(i == self.endIndex)
104 | }
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/Compatibility/UnsafeMutableBufferPointer+SE-0370.swift:247:15: note: found this candidate
245 | @inlinable
246 | @_alwaysEmitIntoClient
247 | public func initialize<C: Collection>(
| `- note: found this candidate
248 | fromContentsOf source: C
249 | ) -> Index where Base == UnsafeMutableBufferPointer<C.Element> {
Swift.Slice.initialize:2:24: note: found this candidate in module 'Swift'
1 | generic struct Slice {
2 | @inlinable public func initialize<Element>(fromContentsOf source: some Collection) -> Slice<Base>.Index where Base == UnsafeMutableBufferPointer<Element>}
| `- note: found this candidate in module 'Swift'
3 |
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/UnsafeMutableBufferPointer+Extras.swift:102:18: error: ambiguous use of 'initialize(fromContentsOf:)'
100 | fromContentsOf source: C
101 | ) where Base == UnsafeMutableBufferPointer<C.Element> {
102 | let i = self.initialize(fromContentsOf: source)
| `- error: ambiguous use of 'initialize(fromContentsOf:)'
103 | assert(i == self.endIndex)
104 | }
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/Compatibility/UnsafeMutableBufferPointer+SE-0370.swift:247:15: note: found this candidate
245 | @inlinable
246 | @_alwaysEmitIntoClient
247 | public func initialize<C: Collection>(
| `- note: found this candidate
248 | fromContentsOf source: C
249 | ) -> Index where Base == UnsafeMutableBufferPointer<C.Element> {
Swift.Slice.initialize:2:24: note: found this candidate in module 'Swift'
1 | generic struct Slice {
2 | @inlinable public func initialize<Element>(fromContentsOf source: some Collection) -> Slice<Base>.Index where Base == UnsafeMutableBufferPointer<Element>}
| `- note: found this candidate in module 'Swift'
3 |
[40/98] Compiling _CollectionsUtilities _UniqueCollection.swift
[41/98] Compiling ArgumentParser AsyncParsableCommand.swift
[42/98] Compiling ArgumentParser CommandConfiguration.swift
[43/98] Compiling ArgumentParser EnumerableFlag.swift
[44/98] Compiling ArgumentParser ExpressibleByArgument.swift
[45/102] Compiling ArgumentParser ArgumentHelp.swift
[46/102] Compiling ArgumentParser ArgumentVisibility.swift
[47/102] Compiling ArgumentParser CompletionKind.swift
[48/102] Compiling ArgumentParser Errors.swift
[49/102] Emitting module ArgumentParser
[58/102] Compiling ArgumentParser Platform.swift
[59/102] Compiling ArgumentParser SequenceExtensions.swift
[60/102] Compiling ArgumentParser StringExtensions.swift
[61/102] Compiling ArgumentParser Tree.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[82/102] Emitting module _CollectionsUtilities
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/UnsafeMutableBufferPointer+Extras.swift:102:18: error: ambiguous use of 'initialize(fromContentsOf:)'
100 | fromContentsOf source: C
101 | ) where Base == UnsafeMutableBufferPointer<C.Element> {
102 | let i = self.initialize(fromContentsOf: source)
| `- error: ambiguous use of 'initialize(fromContentsOf:)'
103 | assert(i == self.endIndex)
104 | }
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/Compatibility/UnsafeMutableBufferPointer+SE-0370.swift:247:15: note: found this candidate
245 | @inlinable
246 | @_alwaysEmitIntoClient
247 | public func initialize<C: Collection>(
| `- note: found this candidate
248 | fromContentsOf source: C
249 | ) -> Index where Base == UnsafeMutableBufferPointer<C.Element> {
Swift.Slice.initialize:2:24: note: found this candidate in module 'Swift'
1 | generic struct Slice {
2 | @inlinable public func initialize<Element>(fromContentsOf source: some Collection) -> Slice<Base>.Index where Base == UnsafeMutableBufferPointer<Element>}
| `- note: found this candidate in module 'Swift'
3 |
warning: 'spi-builder-workspace': found 5 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/Users/admin/builder/spi-builder-workspace/Sources/SummarizedCollectionBenchmark/README.md
/Users/admin/builder/spi-builder-workspace/Sources/SummarizedCollectionBenchmark/results.html
/Users/admin/builder/spi-builder-workspace/Sources/SummarizedCollectionBenchmark/results.json
/Users/admin/builder/spi-builder-workspace/Sources/SummarizedCollectionBenchmark/SummaryTree.json
/Users/admin/builder/spi-builder-workspace/Sources/SummarizedCollectionBenchmark/Temp.json
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/Users/admin/builder/spi-builder-workspace/Sources/_CollectionsUtilities/CMakeLists.txt
BUILD FAILURE 6.3 macosSpm