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Build Information

Failed to build Hylo, reference main (688915), with Swift 6.4 for macOS (SPM) on 23 Oct 2026 05:52:51 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hylo-lang/hylo-old.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/hylo-lang/hylo-old
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 6889158 Typo
Submodule path 'SPMBuildToolSupport': checked out 'c270d23a9c70aa015e09a9c0ea28e36d2801adc4'
Submodule 'SPMBuildToolSupport' (https://github.com/dabrahams/SPMBuildToolSupport.git) registered for path 'SPMBuildToolSupport'
Cloning into '/Users/admin/builder/spi-builder-workspace/SPMBuildToolSupport'...
Cloned https://github.com/hylo-lang/hylo-old.git
Revision (git rev-parse @):
6889158246df571baa9079115817ab2bff61156b
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/hylo-lang/hylo-old.git at main
Fetching https://github.com/apple/swift-numerics.git
Fetching https://github.com/jpsim/Yams.git
Fetching https://github.com/apple/swift-syntax.git
Fetching https://github.com/apple/swift-tools-support-core.git
Fetching https://github.com/hylo-lang/Swifty-LLVM
Fetching https://github.com/apple/swift-argument-parser.git
Fetching https://github.com/hylo-lang/Durian.git
[1/224] Fetching durian
[183/6415] Fetching durian, swifty-llvm
[226/13171] Fetching durian, swifty-llvm, swift-numerics
[288/25049] Fetching durian, swifty-llvm, swift-numerics, yams
[4438/44221] Fetching durian, swifty-llvm, swift-numerics, yams, swift-argument-parser
[10260/51642] Fetching durian, swifty-llvm, swift-numerics, yams, swift-argument-parser, swift-tools-support-core
Fetched https://github.com/apple/swift-numerics.git (1.47s)
[10480/44886] Fetching durian, swifty-llvm, yams, swift-argument-parser, swift-tools-support-core
Fetching https://github.com/apple/swift-collections.git
[24087/125858] Fetching durian, swifty-llvm, yams, swift-argument-parser, swift-tools-support-core, swift-syntax
[33149/155141] Fetching durian, swifty-llvm, yams, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections
Fetched https://github.com/hylo-lang/Swifty-LLVM (4.36s)
Fetched https://github.com/jpsim/Yams.git (4.36s)
[62891/137072] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections
Fetching https://github.com/attaswift/BigInt.git
Fetching https://github.com/apple/swift-algorithms.git
[74641/142015] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections, bigint
[75012/148174] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections, bigint, swift-algorithms
Fetched https://github.com/apple/swift-algorithms.git (1.61s)
Fetched https://github.com/attaswift/BigInt.git (1.61s)
Fetching https://github.com/SwiftPackageIndex/SPIManifest.git
Fetching https://github.com/apple/swift-format
[86269/137072] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections
[100093/138152] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections, spimanifest
[109744/153279] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, swift-collections, spimanifest, swift-format
Fetched https://github.com/apple/swift-collections.git (6.52s)
[109515/123996] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax, spimanifest, swift-format
Fetched https://github.com/apple/swift-format (2.05s)
Fetched https://github.com/SwiftPackageIndex/SPIManifest.git (2.05s)
[94024/107789] Fetching durian, swift-argument-parser, swift-tools-support-core, swift-syntax
Fetched https://github.com/apple/swift-argument-parser.git (12.02s)
Fetched https://github.com/apple/swift-tools-support-core.git (12.02s)
Fetched https://github.com/hylo-lang/Durian.git (12.02s)
Fetched https://github.com/apple/swift-syntax.git (12.02s)
Creating working copy for https://github.com/jpsim/Yams.git
Creating working copy for https://github.com/apple/swift-argument-parser.git
Creating working copy for https://github.com/apple/swift-syntax.git
Creating working copy for https://github.com/apple/swift-tools-support-core.git
Creating working copy for https://github.com/apple/swift-numerics.git
Creating working copy for https://github.com/hylo-lang/Durian.git
Creating working copy for https://github.com/hylo-lang/Swifty-LLVM
Creating working copy for https://github.com/SwiftPackageIndex/SPIManifest.git
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/jpsim/Yams.git resolved at 5.1.3
Creating working copy for https://github.com/attaswift/BigInt.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.0.2
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/hylo-lang/Durian.git resolved at 61d0681cafb43f595477b62b4cd5baf8bdfafe41
Working copy of https://github.com/SwiftPackageIndex/SPIManifest.git resolved at 1.10.0
Creating working copy for https://github.com/apple/swift-format
Working copy of https://github.com/hylo-lang/Swifty-LLVM resolved at cff484ecca159d9eec1938cda83a72b57cdfbd08
Working copy of https://github.com/attaswift/BigInt.git resolved at 5.7.0
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Working copy of https://github.com/apple/swift-tools-support-core.git resolved at 0.7.2
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.6.1
Working copy of https://github.com/apple/swift-syntax.git resolved at 508.0.1
Working copy of https://github.com/apple/swift-format resolved at 508.0.1
Working copy of https://github.com/apple/swift-collections.git resolved at 1.2.1
warning: 'bigint': /Users/admin/builder/spi-builder-workspace/.build/checkouts/BigInt/Package.swift:18:19: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
16 |         .iOS(.v12),
17 |         .tvOS(.v12),
18 |         .watchOS(.v4),
   |                   `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
19 |         .macCatalyst(.v13),
20 |         .visionOS(.v1),
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
error: 'swifty-llvm': Invalid manifest (compiled with: ["/Library/Developer/CommandLineTools/usr/bin/swiftc", "-vfsoverlay", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.fTWisW/vfs.yaml", "-L", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx14.0", "-I", "/Library/Developer/CommandLineTools/Library/Developer/Frameworks", "-L", "/Library/Developer/CommandLineTools/Library/Developer/Frameworks", "-plugin-path", "/Library/Developer/CommandLineTools/usr/lib/swift/host/plugins/testing", "-sdk", "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk", "-swift-version", "6", "-I", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk", "-package-description-version", "6.2.0", "/Users/admin/builder/spi-builder-workspace/.build/checkouts/Swifty-LLVM/Package.swift", "-o", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.hlbG5t/swifty-llvm-manifest"])
main/Package.swift:152: Fatal error: Unexpectedly found nil while unwrapping an Optional value
error: Invalid manifest (compiled with: ["/Library/Developer/CommandLineTools/usr/bin/swiftc", "-vfsoverlay", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.fTWisW/vfs.yaml", "-L", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx14.0", "-I", "/Library/Developer/CommandLineTools/Library/Developer/Frameworks", "-L", "/Library/Developer/CommandLineTools/Library/Developer/Frameworks", "-plugin-path", "/Library/Developer/CommandLineTools/usr/lib/swift/host/plugins/testing", "-sdk", "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk", "-swift-version", "6", "-I", "/Library/Developer/CommandLineTools/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk", "-package-description-version", "6.2.0", "/Users/admin/builder/spi-builder-workspace/.build/checkouts/Swifty-LLVM/Package.swift", "-o", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.hlbG5t/swifty-llvm-manifest"])
main/Package.swift:152: Fatal error: Unexpectedly found nil while unwrapping an Optional value
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/hylo-lang/hylo-old.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0.app xcrun swift build --arch arm64
warning: 'bigint': /Users/admin/builder/spi-builder-workspace/.build/checkouts/BigInt/Package.swift:18:19: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
16 |         .iOS(.v12),
17 |         .tvOS(.v12),
18 |         .watchOS(.v4),
   |                   `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
19 |         .macCatalyst(.v13),
20 |         .visionOS(.v1),
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
error: 'swifty-llvm': Invalid manifest (compiled with: ["/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc", "-vfsoverlay", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.OE0evg/vfs.yaml", "-L", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx14.0", "-plugin-path", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing", "-sdk", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-F", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks", "-I", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-L", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-swift-version", "6", "-I", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-package-description-version", "6.2.0", "/Users/admin/builder/spi-builder-workspace/.build/checkouts/Swifty-LLVM/Package.swift", "-o", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.MA6aaA/swifty-llvm-manifest"])
main/Package.swift:152: Fatal error: Unexpectedly found nil while unwrapping an Optional value
error: Invalid manifest (compiled with: ["/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc", "-vfsoverlay", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.OE0evg/vfs.yaml", "-L", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx14.0", "-plugin-path", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing", "-sdk", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-F", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks", "-I", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-L", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-swift-version", "6", "-I", "/Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-package-description-version", "6.2.0", "/Users/admin/builder/spi-builder-workspace/.build/checkouts/Swifty-LLVM/Package.swift", "-o", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.MA6aaA/swifty-llvm-manifest"])
main/Package.swift:152: Fatal error: Unexpectedly found nil while unwrapping an Optional value
BUILD FAILURE 6.4 macosSpm