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Build Information

Failed to build SwiftProtobuf, reference 1.31.0 (e3f69f), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 19 Aug 2025 10:56:21 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-protobuf.git
Reference: 1.31.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-protobuf
 * tag               1.31.0     -> FETCH_HEAD
HEAD is now at e3f69fd Prepare for a 1.31.0 release and update docs (#1843)
Cloned https://github.com/apple/swift-protobuf.git
Revision (git rev-parse @):
e3f69fd321d0c9fcdc16fb576a0cdd956675face
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-protobuf.git at 1.31.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/apple/swift-protobuf.git
https://github.com/apple/swift-protobuf.git
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error: 'spi-builder-workspace': executable product 'protoc' expects target 'protoc' to be executable; an executable target requires a 'main.swift' file
Command line invocation:
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Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  SwiftProtobuf: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftProtobuf
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error: 'spi-builder-workspace': executable product 'protoc' expects target 'protoc' to be executable; an executable target requires a 'main.swift' file
Command line invocation:
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Resolve Package Graph
Resolved source packages:
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resolved source packages: SwiftProtobuf
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        "Message+TextFormatAdditions.swift",
        "Message.swift",
        "MessageExtension.swift",
        "NameMap.swift",
        "PathDecoder.swift",
        "PathVisitor.swift",
        "ProtoNameProviding.swift",
        "ProtobufAPIVersionCheck.swift",
        "ProtobufMap.swift",
        "SelectiveVisitor.swift",
        "SimpleExtensionMap.swift",
        "StringUtils.swift",
        "SwiftProtobufContiguousBytes.swift",
        "SwiftProtobufError.swift",
        "TextFormatDecoder.swift",
        "TextFormatDecodingError.swift",
        "TextFormatDecodingOptions.swift",
        "TextFormatEncoder.swift",
        "TextFormatEncodingOptions.swift",
        "TextFormatEncodingVisitor.swift",
        "TextFormatScanner.swift",
        "TimeUtils.swift",
        "UnknownStorage.swift",
        "UnsafeRawPointer+Shims.swift",
        "Varint.swift",
        "Version.swift",
        "Visitor.swift",
        "WireFormat.swift",
        "ZigZag.swift",
        "any.pb.swift",
        "api.pb.swift",
        "descriptor.pb.swift",
        "duration.pb.swift",
        "empty.pb.swift",
        "field_mask.pb.swift",
        "source_context.pb.swift",
        "struct.pb.swift",
        "timestamp.pb.swift",
        "type.pb.swift",
        "wrappers.pb.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Conformance",
      "module_type" : "SwiftTarget",
      "name" : "Conformance",
      "path" : "Sources/Conformance",
      "product_memberships" : [
        "Conformance"
      ],
      "sources" : [
        "conformance.pb.swift",
        "main.swift",
        "test_messages_edition2023.pb.swift",
        "test_messages_proto2.pb.swift",
        "test_messages_proto2_editions.pb.swift",
        "test_messages_proto3.pb.swift",
        "test_messages_proto3_editions.pb.swift"
      ],
      "target_dependencies" : [
        "SwiftProtobuf"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.10"
}
error: 'spi-builder-workspace': executable product 'protoc' expects target 'protoc' to be executable; an executable target requires a 'main.swift' file
BUILD FAILURE 6.1 macosXcodebuild