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Build Information

Failed to build CombineCoreBluetooth, reference master (17ef83), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 15:55:12 UTC.

Build Command

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

Build Log

========================================
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/StarryInternet/CombineCoreBluetooth.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/StarryInternet/CombineCoreBluetooth
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 17ef837 Merge pull request #38 from StarryInternet/fix-warnings
Cloned https://github.com/StarryInternet/CombineCoreBluetooth.git
Revision (git rev-parse @):
17ef837de13c506915dd7fa73a215ef77875b356
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/StarryInternet/CombineCoreBluetooth.git at master
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Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/StarryInternet/CombineCoreBluetooth.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
[19 / 28]
[20 / 29] CombineCoreBluetooth
[30 / 75]
[35 / 75]
[38 / 75]
[39 / 75]
[43 / 75]
[45 / 75]
[48 / 75]
[51 / 75]
[53 / 75]
[54 / 75]
[66 / 75] CombineCoreBluetooth
[67 / 75] CombineCoreBluetooth
Fetching https://github.com/pointfreeco/swift-concurrency-extras
[1/1058] Fetching swift-concurrency-extras
Fetched https://github.com/pointfreeco/swift-concurrency-extras (1.25s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.4.1 (1.88s)
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.4.1
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/CentralManager/Live+CentralManager.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile Live+CentralManager.swift
/Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/CentralManager/Live+CentralManager.swift:25:26: error: cannot convert value of type '()' to closure result type 'Bool'
 23 |       },
 24 |       _isScanning: { centralManager.isScanning },
 25 |       _supportsFeatures: {
    |                          `- error: cannot convert value of type '()' to closure result type 'Bool'
 26 | #if os(macOS) && !targetEnvironment(macCatalyst)
 27 |         // will never be called on native macOS
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Central/Interface+Central.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Central/Live+Central.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Central/Mock+Central.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/CentralManager/Interface+CentralManager.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/CentralManager/Live+CentralManager.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/CentralManager/Mock+CentralManager.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Internal/Exports.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Internal/Publisher+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Internal/Unimplemented.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/ATTRequest.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/AdvertisementData.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/CentralManagerError.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/L2CAPChannel.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/ManagerCreationOptions.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/Peer.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/PeripheralDiscovery.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/PeripheralError.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Models/PeripheralManagerError.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Peripheral/Interface+Peripheral.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Peripheral/Live+Peripheral.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/Peripheral/Mock+Peripheral.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/PeripheralManager/Interface+PeripheralManager.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/PeripheralManager/Live+PeripheralManager.swift /Users/admin/builder/spi-builder-workspace/Sources/CombineCoreBluetooth/PeripheralManager/Mock+PeripheralManager.swift -supplementary-output-file-map /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/supplementaryOutputs-2 -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/CombineCoreBluetooth-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CombineCoreBluetooth -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/CombineCoreBluetooth_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Interface+CentralManager.o -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Live+CentralManager.o -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Mock+CentralManager.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/CombineCoreBluetooth.swiftmodule -index-unit-output-path /CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Interface+CentralManager.o -index-unit-output-path /CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Live+CentralManager.o -index-unit-output-path /CombineCoreBluetooth.build/Debug/CombineCoreBluetooth-t.build/Objects-normal/arm64/Mock+CentralManager.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm