Swift Package Index

Build Information

Failed to build Futura.swift, reference master (1dd68c), with Swift 6.4 for iOS using Xcode 27.0 on 15 Sep 2026 18:26:04 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 Futura.swift -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/thedavidharris/Futura.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/thedavidharris/Futura
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 1dd68ce Add documentation
Cloned https://github.com/thedavidharris/Futura.git
Revision (git rev-parse @):
1dd68cee8588d15c77dff40e699ee411bc5e1e1e
SUCCESS checkout https://github.com/thedavidharris/Futura.git at master
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/thedavidharris/Futura.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
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Futura.swift",
  "name" : "Futura.swift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Futura",
      "targets" : [
        "Futura"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FuturaTests",
      "module_type" : "SwiftTarget",
      "name" : "FuturaTests",
      "path" : "Tests",
      "sources" : [
        "FutureTests+Always.swift",
        "FutureTests+Collection.swift",
        "FutureTests+Do.swift",
        "FutureTests+Init.swift",
        "FutureTests+Map.swift",
        "FutureTests+Race.swift",
        "FutureTests+Recover.swift",
        "FutureTests+Retry.swift",
        "FutureTests+Time.swift",
        "FutureTests+Validate.swift",
        "FutureTests+Variadic.swift",
        "FutureTests+Wrap.swift",
        "TestHelpers.swift"
      ],
      "target_dependencies" : [
        "Futura"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Futura",
      "module_type" : "SwiftTarget",
      "name" : "Futura",
      "path" : "Sources",
      "product_memberships" : [
        "Futura"
      ],
      "sources" : [
        "Callback.swift",
        "Collection+Future.swift",
        "Either.swift",
        "Future+Always.swift",
        "Future+Do.swift",
        "Future+Map.swift",
        "Future+Race.swift",
        "Future+Recover.swift",
        "Future+Retry.swift",
        "Future+Time.swift",
        "Future+Validate.swift",
        "Future+Variadic.swift",
        "Future+Wrap.swift",
        "Future.swift",
        "FutureError.swift",
        "Promise+Void.swift",
        "Promise.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Futura",
    "schemes" : [
      "Futura-iOS",
      "Futura-macOS",
      "Futura-tvOS",
      "Futura-watchOS"
    ],
    "targets" : [
      "Futura-iOS",
      "FuturaTests-iOS",
      "Futura-macOS",
      "FuturaTests-macOS",
      "Futura-tvOS",
      "FuturaTests-tvOS",
      "Futura-watchOS"
    ]
  }
}
{
  "workspace" : {
    "name" : "Futura.swift",
    "schemes" : [
      "Futura.swift"
    ]
  }
}
2026-09-15 14:25:54.550 xcodebuild[621:3918] [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 Futura.swift -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 Futura.swift -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  Futura.swift: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Futura-product' in project 'Futura.swift'
        ➜ Explicit dependency on target 'Futura' in project 'Futura.swift'
    Target 'Futura' in project 'Futura.swift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 87471d26f94e46a04fb3d435a161247b
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/87471d26f94e46a04fb3d435a161247b.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.modulemap (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.DependencyStaticMetadataFileList (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.DependencyMetadataFileList (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftFileList (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-OutputFileMap.json (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftConstValuesFileList (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.LinkFileList (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos/Futura.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.modulemap (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Futura.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-iphoneos
SwiftDriver Futura normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name Futura -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios15.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4.2 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Callback.swift,\ Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Callback.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Collection+Future.swift
/Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift:40:29: error: value of type 'Self' has no member 'containsOnly'
38 |             for future in self {
39 |                 future.then(on: queue) { _ in
40 |                     if self.containsOnly(where: { $0.state == .resolved }) {
   |                             `- error: value of type 'Self' has no member 'containsOnly'
41 |                         fullfill(self.compactMap { $0.value })
42 |                     }
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.dia -target arm64-apple-ios15.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4.2 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Futura -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 Compiling\ Future+Race.swift,\ Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Race.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Recover.swift
SwiftCompile normal arm64 Compiling\ FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile FutureError.swift
SwiftCompile normal arm64 Compiling\ Promise.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Promise.swift
SwiftCompile normal arm64 Compiling\ Future+Retry.swift,\ Future+Time.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift:21:23: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     /// - Returns: existing Future object
20 |     @discardableResult
21 |     public func retry<Value>(attempts: Int, delay delayTime: TimeInterval = 0, retryBody: @escaping () -> Future<Value>) -> Future<Value> {
   |                       `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
22 |
23 |         var attemptsLeft = attempts
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Retry.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Time.swift
SwiftEmitModule normal arm64 Emitting\ module\ for\ Futura (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift:21:23: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     /// - Returns: existing Future object
20 |     @discardableResult
21 |     public func retry<Value>(attempts: Int, delay delayTime: TimeInterval = 0, retryBody: @escaping () -> Future<Value>) -> Future<Value> {
   |                       `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
22 |
23 |         var attemptsLeft = attempts
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:16:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
14 |     /// - Parameter futures: an array of futures of the same type
15 |     /// - Returns: a single promise combining the resolved values of `futures`
16 |     public static func all<Value>(_ futures: [Future<Value>]) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
17 |         return Promise<[Value]>{ (fullfill, reject) in
18 |             if futures.isEmpty {
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:37:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
35 |     /// - Parameter futures: an array of futures of the same type
36 |     /// - Returns: a single future combining the resolved values of `futures`
37 |     public static func all<Value>(_ futures: Future<Value>...) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
38 |         return all(futures)
39 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
SwiftCompile normal arm64 (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Promise+Void.swift
SwiftCompile normal arm64 Compiling\ Future+Validate.swift,\ Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:16:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
14 |     /// - Parameter futures: an array of futures of the same type
15 |     /// - Returns: a single promise combining the resolved values of `futures`
16 |     public static func all<Value>(_ futures: [Future<Value>]) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
17 |         return Promise<[Value]>{ (fullfill, reject) in
18 |             if futures.isEmpty {
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:37:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
35 |     /// - Parameter futures: an array of futures of the same type
36 |     /// - Returns: a single future combining the resolved values of `futures`
37 |     public static func all<Value>(_ futures: Future<Value>...) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
38 |         return all(futures)
39 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:23:32: error: value of type '[Future<Value>]' has no member 'containsOnly'
21 |             futures.forEach({ (future) in
22 |                 future.then({ _ in
23 |                     if futures.containsOnly(where: { $0.state == .resolved }) {
   |                                `- error: value of type '[Future<Value>]' has no member 'containsOnly'
24 |                         fullfill(futures.compactMap({ $0.value }))
25 |                     }
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/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.dia -target arm64-apple-ios15.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4.2 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Futura -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Validate.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Variadic.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Validate.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Variadic.swift
SwiftCompile normal arm64 Compiling\ Future+Wrap.swift,\ Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:86:29: error: cannot convert return expression of type 'Value??' to return type 'Value?'
 84 |     /// Convenience accessor for the associated value of the future
 85 |     public var value: Value? {
 86 |         return try? result?.get()
    |                             |- error: cannot convert return expression of type 'Value??' to return type 'Value?'
    |                             `- note: arguments to generic parameter 'Wrapped' ('Value?' and 'Value') are expected to be equal
 87 |     }
 88 |
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/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Future.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.dia -target arm64-apple-ios15.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4.2 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Futura -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future+Wrap.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Future.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Wrap.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future.swift
SwiftCompile normal arm64 Compiling\ Future+Do.swift,\ Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Do.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Map.swift
SwiftCompile normal arm64 Compiling\ Either.swift,\ Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Either.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Either.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Always.swift
SwiftDriverJobDiscovery normal arm64 Emitting module for Futura (in target 'Futura' from project 'Futura.swift')
SwiftDriver\ Compilation\ Requirements Futura normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name Futura -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios15.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4.2 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
2026-09-15 14:25:56.169 xcodebuild[658:4301] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 Compiling\ Callback.swift,\ Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 Compiling\ Future+Validate.swift,\ Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 Compiling\ Future+Wrap.swift,\ Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
	Building workspace Futura.swift with scheme Futura.swift
(7 failures)
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:
  Futura.swift: /Users/admin/builder/spi-builder-workspace
resolved source packages: Futura.swift
2026-09-15 14:26:02.066 xcodebuild[684:4505] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Futura.swift",
  "name" : "Futura.swift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Futura",
      "targets" : [
        "Futura"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FuturaTests",
      "module_type" : "SwiftTarget",
      "name" : "FuturaTests",
      "path" : "Tests",
      "sources" : [
        "FutureTests+Always.swift",
        "FutureTests+Collection.swift",
        "FutureTests+Do.swift",
        "FutureTests+Init.swift",
        "FutureTests+Map.swift",
        "FutureTests+Race.swift",
        "FutureTests+Recover.swift",
        "FutureTests+Retry.swift",
        "FutureTests+Time.swift",
        "FutureTests+Validate.swift",
        "FutureTests+Variadic.swift",
        "FutureTests+Wrap.swift",
        "TestHelpers.swift"
      ],
      "target_dependencies" : [
        "Futura"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Futura",
      "module_type" : "SwiftTarget",
      "name" : "Futura",
      "path" : "Sources",
      "product_memberships" : [
        "Futura"
      ],
      "sources" : [
        "Callback.swift",
        "Collection+Future.swift",
        "Either.swift",
        "Future+Always.swift",
        "Future+Do.swift",
        "Future+Map.swift",
        "Future+Race.swift",
        "Future+Recover.swift",
        "Future+Retry.swift",
        "Future+Time.swift",
        "Future+Validate.swift",
        "Future+Variadic.swift",
        "Future+Wrap.swift",
        "Future.swift",
        "FutureError.swift",
        "Promise+Void.swift",
        "Promise.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
{
  "workspace" : {
    "name" : "Futura.swift",
    "schemes" : [
      "Futura.swift"
    ]
  }
}
2026-09-15 14:26:03.187 xcodebuild[692:4580] [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 Futura.swift -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 Futura.swift -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  Futura.swift: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Futura-product' in project 'Futura.swift'
        ➜ Explicit dependency on target 'Futura' in project 'Futura.swift'
    Target 'Futura' in project 'Futura.swift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache
SwiftDriver Futura normal arm64 com.apple.xcode.tools.swift.compiler (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name Futura -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -target arm64-apple-ios15.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4.2 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ Either.swift,\ Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Either.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Either.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Always.swift
SwiftCompile normal arm64 Compiling\ Future+Retry.swift,\ Future+Time.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Retry.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Time.swift
SwiftCompile normal arm64 Compiling\ Callback.swift,\ Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift:40:29: error: value of type 'Self' has no member 'containsOnly'
38 |             for future in self {
39 |                 future.then(on: queue) { _ in
40 |                     if self.containsOnly(where: { $0.state == .resolved }) {
   |                             `- error: value of type 'Self' has no member 'containsOnly'
41 |                         fullfill(self.compactMap { $0.value })
42 |                     }
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Either.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Always.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Time.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.dia -target arm64-apple-ios15.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4.2 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos27.0-24A430-e829b21a6f8c9b70876ba0858053c04440ceaa042ed91876912b2eeea4e3aa14.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Futura -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Futura_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name iphoneos27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Callback.o -index-unit-output-path /Futura.swift.build/Debug-iphoneos/Futura-t.build/Objects-normal/arm64/Collection+Future.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Callback.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Collection+Future.swift
SwiftCompile normal arm64 Compiling\ Future+Do.swift,\ Future+Map.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Do.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Do.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Map.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Map.swift
SwiftCompile normal arm64 Compiling\ Future+Validate.swift,\ Future+Variadic.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:16:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
14 |     /// - Parameter futures: an array of futures of the same type
15 |     /// - Returns: a single promise combining the resolved values of `futures`
16 |     public static func all<Value>(_ futures: [Future<Value>]) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
17 |         return Promise<[Value]>{ (fullfill, reject) in
18 |             if futures.isEmpty {
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:37:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
35 |     /// - Parameter futures: an array of futures of the same type
36 |     /// - Returns: a single future combining the resolved values of `futures`
37 |     public static func all<Value>(_ futures: Future<Value>...) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
38 |         return all(futures)
39 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:23:32: error: value of type '[Future<Value>]' has no member 'containsOnly'
21 |             futures.forEach({ (future) in
22 |                 future.then({ _ in
23 |                     if futures.containsOnly(where: { $0.state == .resolved }) {
   |                                `- error: value of type '[Future<Value>]' has no member 'containsOnly'
24 |                         fullfill(futures.compactMap({ $0.value }))
25 |                     }
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Validate.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Validate.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Variadic.swift
SwiftCompile normal arm64 Compiling\ Promise+Void.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Promise+Void.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Promise+Void.swift
SwiftEmitModule normal arm64 Emitting\ module\ for\ Futura (in target 'Futura' from project 'Futura.swift')
/Users/admin/builder/spi-builder-workspace/Sources/Future+Retry.swift:21:23: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     /// - Returns: existing Future object
20 |     @discardableResult
21 |     public func retry<Value>(attempts: Int, delay delayTime: TimeInterval = 0, retryBody: @escaping () -> Future<Value>) -> Future<Value> {
   |                       `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
22 |
23 |         var attemptsLeft = attempts
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
/Users/admin/builder/spi-builder-workspace/Sources/Future+Variadic.swift:16:28: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
14 |     /// - Parameter futures: an array of futures of the same type
15 |     /// - Returns: a single promise combining the resolved values of `futures`
16 |     public static func all<Value>(_ futures: [Future<Value>]) -> Future<[Value]> {
   |                            `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
17 |         return Promise<[Value]>{ (fullfill, reject) in
18 |             if futures.isEmpty {
/Users/admin/builder/spi-builder-workspace/Sources/Future.swift:45:21: note: 'Value' previously declared here
 43 |
 44 | /// Generic class for a Future
 45 | public class Future<Value>: FutureType {
    |                     `- note: 'Value' previously declared here
 46 |
 47 |     /// Generic value type
SwiftCompile normal arm64 (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FutureError.swift /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/FutureError.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile FutureError.swift
SwiftCompile normal arm64 Compiling\ Promise.swift /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Promise.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Promise.swift
SwiftCompile normal arm64 Compiling\ Future+Race.swift,\ Future+Recover.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Race.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Race.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Recover.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Recover.swift
SwiftCompile normal arm64 Compiling\ Future+Wrap.swift,\ Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future+Wrap.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future+Wrap.swift
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Future.swift (in target 'Futura' from project 'Futura.swift')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile Future.swift
SwiftDriverJobDiscovery normal arm64 Compiling Promise+Void.swift (in target 'Futura' from project 'Futura.swift')
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
2026-09-15 14:26:04.059 xcodebuild[693:4608] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 Compiling\ Callback.swift,\ Collection+Future.swift /Users/admin/builder/spi-builder-workspace/Sources/Callback.swift /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/Collection+Future.swift (in target 'Futura' from project 'Futura.swift')
	Building workspace Futura.swift with scheme Futura.swift
(3 failures)
BUILD FAILURE 6.4 iOS