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Build Information

Failed to build pkl-swift, reference main (4a6da2), with Swift 6.0 for macOS (SPM) on 10 Sep 2025 15:05:48 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/pkl-swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/pkl-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 4a6da2d Add support for Swift 6 (#61)
Cloned https://github.com/apple/pkl-swift.git
Revision (git rev-parse @):
4a6da2d0f64e73468b964c4ed2ea1e25eeb17b92
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/pkl-swift.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/apple/pkl-swift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin GenerateDoccReference
[2/2] Compiling plugin GenerateManual
[3/3] Compiling plugin Swift-DocC
[4/4] Compiling plugin Swift-DocC Preview
[5/5] Compiling plugin SwiftFormatPlugin
Building for debugging...
[5/25] Write sources
[7/25] Write embedded_resources.swift
[9/25] Write sources
[11/25] Write test-external-reader-entitlement.plist
[12/25] Write pkl-gen-swift-entitlement.plist
[13/25] Write sources
[16/25] Compiling CSystem shims.c
[17/25] Write swift-version-5BDAB9E9C0126B9D.txt
[19/59] Compiling ArgumentParserToolInfo ToolInfo.swift
[20/59] Emitting module ArgumentParserToolInfo
[20/105] Compiling PklSwiftInternals Discovery.cpp
[22/105] Compiling ArgumentParser BashCompletionsGenerator.swift
[23/105] Compiling ArgumentParser CompletionsGenerator.swift
[24/105] Compiling ArgumentParser FishCompletionsGenerator.swift
[25/108] Emitting module SystemPackage
[26/108] Compiling ArgumentParser NameSpecification.swift
[27/108] Compiling ArgumentParser Option.swift
[28/108] Compiling ArgumentParser OptionGroup.swift
[29/108] Compiling ArgumentParser ZshCompletionsGenerator.swift
[30/108] Compiling ArgumentParser Argument.swift
[31/108] Compiling ArgumentParser MessageInfo.swift
[32/108] Compiling ArgumentParser EnumerableFlag.swift
[33/108] Compiling ArgumentParser ExpressibleByArgument.swift
[34/108] Compiling ArgumentParser ParsableArguments.swift
[35/108] Compiling ArgumentParser UsageGenerator.swift
[36/108] Compiling ArgumentParser CollectionExtensions.swift
[37/108] Compiling ArgumentParser Mutex.swift
[38/108] Compiling ArgumentParser Tree.swift
[39/108] Compiling ArgumentParser CodingKeyValidator.swift
[40/108] Compiling ArgumentParser Flag.swift
[41/108] Compiling ArgumentParser Platform.swift
[42/108] Compiling ArgumentParser CommandConfiguration.swift
[43/108] Compiling ArgumentParser CommandGroup.swift
[44/108] Compiling ArgumentParser AsyncParsableCommand.swift
[45/108] Compiling ArgumentParser ParsableCommand.swift
[46/108] Compiling ArgumentParser ArgumentDecoder.swift
[47/108] Compiling ArgumentParser SequenceExtensions.swift
[48/108] Compiling ArgumentParser StringExtensions.swift
[49/108] Compiling ArgumentParser SwiftExtensions.swift
[50/108] Compiling SystemPackage Util+StringArray.swift
[51/108] Compiling SystemPackage Util.swift
[52/108] Compiling SystemPackage UtilConsumers.swift
[53/123] Compiling SemanticVersion SemanticVersion.swift
[54/123] Compiling SemanticVersion SemanticVersion+LosslessStringConvertible.swift
[55/123] Compiling ArgumentParser ArgumentDiscussion.swift
[56/123] Compiling ArgumentParser ArgumentHelp.swift
[57/123] Compiling ArgumentParser ArgumentVisibility.swift
[58/123] Compiling ArgumentParser CompletionKind.swift
[59/123] Compiling ArgumentParser Errors.swift
[65/127] Compiling MessagePack AnyCodingKey.swift
[66/127] Compiling MessagePack Box.swift
[67/127] Compiling MessagePack KeyedDecodingContainer.swift
[68/127] Compiling MessagePack KeyedSingleDecodingContainer.swift
[69/127] Compiling MessagePack MessagePackDecoder.swift
[70/127] Compiling ArgumentParser NonsenseFlagsValidator.swift
[71/127] Compiling ArgumentParser ParsableArgumentsValidation.swift
[72/127] Compiling ArgumentParser PositionalArgumentsValidator.swift
[73/127] Compiling ArgumentParser UniqueNamesValidator.swift
[74/127] Emitting module ArgumentParser
[75/127] Emitting module SemanticVersion
[76/127] Compiling SemanticVersion SemanticVersion+Codable.swift
[77/127] Compiling ArgumentParser InputKey.swift
[78/127] Compiling ArgumentParser InputOrigin.swift
[79/127] Compiling ArgumentParser Name.swift
[80/127] Compiling ArgumentParser Parsed.swift
[81/127] Compiling ArgumentParser ParsedValues.swift
[82/127] Compiling ArgumentParser ParserError.swift
[83/127] Compiling ArgumentParser SplitArguments.swift
[84/127] Compiling ArgumentParser DumpHelpGenerator.swift
[85/127] Compiling ArgumentParser HelpCommand.swift
[86/127] Compiling ArgumentParser HelpGenerator.swift
[87/127] Compiling MessagePack SingleValueDecodingContainer.swift
[88/127] Compiling MessagePack _MessagePackDecoder.swift
[89/127] Compiling MessagePack KeyedEncodingContainer.swift
[90/127] Compiling MessagePack UnkeyedDecodingContainer.swift
[91/127] Compiling MessagePack UnkeyedMapDecodingContainer.swift
[107/127] Compiling MessagePack UnkeyedEncodingContainer.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
[112/128] Compiling MessagePack IO.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
error: emit-module command failed with exit code 1 (use -v to see invocation)
[113/128] Emitting module MessagePack
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
[114/128] Compiling MessagePack SingleValueEncodingContainer.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
[115/128] Compiling MessagePack FixedWidthInteger.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
[116/128] Compiling MessagePack MessagePackEncoder.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
Fetching https://github.com/apple/swift-system
Fetching https://github.com/swiftlang/swift-docc-plugin
Fetching https://github.com/nicklockwood/SwiftFormat
Fetching https://github.com/SwiftPackageIndex/SemanticVersion
Fetching https://github.com/apple/swift-argument-parser
[1/375] Fetching semanticversion
[163/2469] Fetching semanticversion, swift-docc-plugin
[457/7406] Fetching semanticversion, swift-docc-plugin, swift-system
[654/23320] Fetching semanticversion, swift-docc-plugin, swift-system, swift-argument-parser
Fetched https://github.com/apple/swift-system from cache (1.09s)
[5289/18383] Fetching semanticversion, swift-docc-plugin, swift-argument-parser
[18381/69262] Fetching semanticversion, swift-docc-plugin, swift-argument-parser, swiftformat
Fetched https://github.com/SwiftPackageIndex/SemanticVersion from cache (1.37s)
Fetched https://github.com/apple/swift-argument-parser from cache (1.37s)
[3112/52973] Fetching swift-docc-plugin, swiftformat
Fetched https://github.com/nicklockwood/SwiftFormat from cache (64.26s)
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (64.26s)
Computing version for https://github.com/SwiftPackageIndex/SemanticVersion
Computed https://github.com/SwiftPackageIndex/SemanticVersion at 0.5.1 (3.31s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.6.1 (0.48s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.4.5 (0.64s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3507] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.16s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.60s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.2 (0.49s)
Computing version for https://github.com/nicklockwood/SwiftFormat
Computed https://github.com/nicklockwood/SwiftFormat at 0.57.2 (0.56s)
Creating working copy for https://github.com/nicklockwood/SwiftFormat
Working copy of https://github.com/nicklockwood/SwiftFormat resolved at 0.57.2
Creating working copy for https://github.com/SwiftPackageIndex/SemanticVersion
Working copy of https://github.com/SwiftPackageIndex/SemanticVersion resolved at 0.5.1
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.5
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.6.1
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.2
BUILD FAILURE 6.0 macosSpm