Echo – Build Information – Swift Package Index

Build Information

Successful build of Echo, reference main (c93e53), with Swift 6.4 for macOS (SPM) on 21 Sep 2026 13:18:02 UTC.

Swift 6 data race errors: 0

Build Command

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

Build Log

========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/PADL/Echo.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/PADL/Echo
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at c93e53d Properly unwrap all existential containers
Cloned https://github.com/PADL/Echo.git
Revision (git rev-parse @):
c93e53d8c26830928283e8bf8c2158501841357d
SUCCESS checkout https://github.com/PADL/Echo.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/PADL/Echo.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Constructing description]
[Planning deferred tasks]
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[142 / 151] Echo
[148 / 151] Echo
Build complete! (8.73 sec)
Fetching https://github.com/apple/swift-atomics.git
[1/1875] Fetching swift-atomics
Fetched https://github.com/apple/swift-atomics.git (1.29s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 0.0.3 (2.02s)
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 0.0.3
/Users/admin/builder/spi-builder-workspace/Sources/Echo/Runtime/Functions.swift:26:2: [1;33mwarning: [1;39msymbol name 'swift_allocBox' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m24 |[0;0m }
 [0;36m25 |[0;0m
 [0;36m26 |[0;0m @_silgen_name("swift_allocBox")
    [0;36m|[0;0m  `- [1;33mwarning: [1;39msymbol name 'swift_allocBox' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m27 |[0;0m public func swift_allocBox(for type: Any.Type) -> BoxPair
 [0;36m28 |[0;0m
/Users/admin/builder/spi-builder-workspace/Sources/Echo/Runtime/Functions.swift:33:2: [1;33mwarning: [1;39msymbol name 'swift_makeBoxUnique' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m31 |[0;0m }
 [0;36m32 |[0;0m
 [0;36m33 |[0;0m @_silgen_name("swift_makeBoxUnique")
    [0;36m|[0;0m  `- [1;33mwarning: [1;39msymbol name 'swift_makeBoxUnique' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m34 |[0;0m func _swift_makeBoxUnique(
 [0;36m35 |[0;0m   for buffer: UnsafeRawPointer,
/Users/admin/builder/spi-builder-workspace/Sources/Echo/Runtime/Functions.swift:26:2: [1;33mwarning: [1;39msymbol name 'swift_allocBox' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m24 |[0;0m }
 [0;36m25 |[0;0m
 [0;36m26 |[0;0m @_silgen_name("swift_allocBox")
    [0;36m|[0;0m  `- [1;33mwarning: [1;39msymbol name 'swift_allocBox' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m27 |[0;0m public func swift_allocBox(for type: Any.Type) -> BoxPair
 [0;36m28 |[0;0m
/Users/admin/builder/spi-builder-workspace/Sources/Echo/Runtime/Functions.swift:33:2: [1;33mwarning: [1;39msymbol name 'swift_makeBoxUnique' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m31 |[0;0m }
 [0;36m32 |[0;0m
 [0;36m33 |[0;0m @_silgen_name("swift_makeBoxUnique")
    [0;36m|[0;0m  `- [1;33mwarning: [1;39msymbol name 'swift_makeBoxUnique' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error[0;0m
 [0;36m34 |[0;0m func _swift_makeBoxUnique(
 [0;36m35 |[0;0m   for buffer: UnsafeRawPointer,
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-atomics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-atomics.git"
    }
  ],
  "manifest_display_name" : "Echo",
  "name" : "Echo",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
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      "targets" : [
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      ],
      "type" : {
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  ],
  "targets" : [
    {
      "c99name" : "EchoTests",
      "module_type" : "SwiftTarget",
      "name" : "EchoTests",
      "path" : "Tests/EchoTests",
      "sources" : [
        "Context Descriptor/AnonymousDescriptor.swift",
        "Context Descriptor/ClassDescriptor.swift",
        "Context Descriptor/EnumDescriptor.swift",
        "Context Descriptor/ExtensionDescriptor.swift",
        "Context Descriptor/FieldDescriptor.swift",
        "Context Descriptor/GenericContext.swift",
        "Context Descriptor/ModuleDescriptor.swift",
        "Context Descriptor/ProtocolDescriptor.swift",
        "Context Descriptor/StructDescriptor.swift",
        "EchoTests.swift",
        "Metadata/ClassMetadata.swift",
        "Metadata/EnumMetadata.swift",
        "Metadata/ExistentialMetadata.swift",
        "Metadata/ExistentialMetatypeMetadata.swift",
        "Metadata/FunctionMetadata.swift",
        "Metadata/MetadataAccessFunction.swift",
        "Metadata/MetatypeMetadata.swift",
        "Metadata/ObjCClassWrapperMetadata.swift",
        "Metadata/OpaqueMetadata.swift",
        "Metadata/StructMetadata.swift",
        "Metadata/TupleMetadata.swift",
        "Runtime/ConformanceDescriptor.swift",
        "Runtime/ExistentialContainer.swift",
        "Runtime/ImageInspection.swift",
        "Utils/Misc.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Echo"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Echo",
      "module_type" : "SwiftTarget",
      "name" : "Echo",
      "path" : "Sources/Echo",
      "product_dependencies" : [
        "Atomics"
      ],
      "product_memberships" : [
        "Echo"
      ],
      "sources" : [
        "ContextDescriptor/AnonymousDescriptor.swift",
        "ContextDescriptor/ClassDescriptor.swift",
        "ContextDescriptor/ContextDescriptor.swift",
        "ContextDescriptor/ContextDescriptorValues.swift",
        "ContextDescriptor/EnumDescriptor.swift",
        "ContextDescriptor/ExtensionDescriptor.swift",
        "ContextDescriptor/FieldDescriptor.swift",
        "ContextDescriptor/GenericContext.swift",
        "ContextDescriptor/ModuleDescriptor.swift",
        "ContextDescriptor/OpaqueDescriptor.swift",
        "ContextDescriptor/ProtocolDescriptor.swift",
        "ContextDescriptor/StructDescriptor.swift",
        "ContextDescriptor/TypeContextDescriptor.swift",
        "Echo.swift",
        "Metadata/ClassMetadata.swift",
        "Metadata/EnumMetadata.swift",
        "Metadata/EnumValueWitnessTable.swift",
        "Metadata/ExistentialMetadata.swift",
        "Metadata/ExistentialMetatypeMetadata.swift",
        "Metadata/ForeignClassMetadata.swift",
        "Metadata/FunctionMetadata.swift",
        "Metadata/HeapGenericLocalVariableMetadata.swift",
        "Metadata/HeapLocalVariableMetadata.swift",
        "Metadata/Metadata.swift",
        "Metadata/MetadataAccessFunction.swift",
        "Metadata/MetadataRequest.swift",
        "Metadata/MetadataValues.swift",
        "Metadata/MetatypeMetadata.swift",
        "Metadata/ObjCClassWrapperMetadata.swift",
        "Metadata/OpaqueMetadata.swift",
        "Metadata/StructMetadata.swift",
        "Metadata/TupleMetadata.swift",
        "Metadata/TypeMetadata.swift",
        "Metadata/ValueWitnessTable.swift",
        "Runtime/ConformanceDescriptor.swift",
        "Runtime/ExistentialContainer.swift",
        "Runtime/Functions.swift",
        "Runtime/HeapObject.swift",
        "Runtime/ImageInspection.swift",
        "Runtime/KeyPaths.swift",
        "Runtime/KnownMetadata.swift",
        "Runtime/RuntimeValues.swift",
        "Runtime/WitnessTable.swift",
        "Utils/FieldType.swift",
        "Utils/Misc.swift",
        "Utils/RelativeDirectPointer.swift",
        "Utils/RelativeIndirectPointer.swift",
        "Utils/RelativeIndirectablePointer.swift",
        "Utils/RelativeIndirectablePointerIntPair.swift",
        "Utils/RelativePointer.swift",
        "Utils/SignedPointer.swift"
      ],
      "target_dependencies" : [
        "CEcho"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CEcho",
      "module_type" : "ClangTarget",
      "name" : "CEcho",
      "path" : "Sources/CEcho",
      "product_memberships" : [
        "Echo"
      ],
      "sources" : [
        "CallAccessor.c",
        "Functions.c",
        "ImageInspectionELF.c",
        "ImageInspectionMachO.c",
        "KnownMetadata.c",
        "ValueWitnessTable.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.