Swift Package Index

Build Information

Failed to build SemanticVersion, reference main (d8070b), with Swift 6.3 for macOS (SPM) on 20 Apr 2026 19:59:51 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/smumriak/SemanticVersion.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/smumriak/SemanticVersion
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at d8070b9 Type annotation for regex builder because swift 5.9 fails to infer types in reasonable time
Cloned https://github.com/smumriak/SemanticVersion.git
Revision (git rev-parse @):
d8070b9edb47c0f526128b8e08e87c7709d10ed9
SUCCESS checkout https://github.com/smumriak/SemanticVersion.git at main
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ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "traits": [
    "default"
  ],
  "dependencies": [
    {
      "identity": "semanticversion",
      "name": "SemanticVersion",
      "url": "https://github.com/smumriak/SemanticVersion.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SemanticVersion",
      "traits": [
        "default"
      ],
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/smumriak/SemanticVersion.git
[1/32] Fetching semanticversion
Fetched https://github.com/smumriak/SemanticVersion.git from cache (0.57s)
Creating working copy for https://github.com/smumriak/SemanticVersion.git
Working copy of https://github.com/smumriak/SemanticVersion.git resolved at main (d8070b9)
warning: '.resolve-product-dependencies': dependency 'semanticversion' is not used by any target
Found 0 product dependencies
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/smumriak/SemanticVersion.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--6988338F2F200930.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module SemanticVersion
/Users/admin/builder/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:244:66: error: result builder 'AlternationBuilder' does not implement any 'buildBlock' or a combination of 'buildPartialBlock(first:)' and 'buildPartialBlock(accumulated:next:)' with sufficient availability for this call site [#ResultBuilderMethods]
242 |         }
243 |
244 |         let preReleaseIdentifier: ChoiceOf<Substring> = ChoiceOf {
    |                                                                  `- error: result builder 'AlternationBuilder' does not implement any 'buildBlock' or a combination of 'buildPartialBlock(first:)' and 'buildPartialBlock(accumulated:next:)' with sufficient availability for this call site [#ResultBuilderMethods]
245 |             "0"
246 |             positiveNumber
/Users/admin/builder/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:233:30: error: trailing closure passed to parameter of type 'String' that does not accept a closure
231 |     }
232 |
233 |     static let regex = Regex {
    |                              `- error: trailing closure passed to parameter of type 'String' that does not accept a closure
234 |         // Swift compiler has troubles type checking this builder. 5.8.1 takes 30 seconds to do it on my PC. 5.9 errors out with "failed to type check in reasonable type"
235 |         // One could think this is a problem of the past, but actually no. With proper type annotation made by hand build takes only 3 seconds. 10 times better
_StringProcessing.Regex.init:2:8: note: 'init(_:)' declared here
1 | generic struct Regex {
2 | public init(_ pattern: String) throws}
  |        `- note: 'init(_:)' declared here
3 |
[#ResultBuilderMethods]: <https://docs.swift.org/compiler/documentation/diagnostics/result-builder-methods>
[4/4] Compiling SemanticVersion SemanticVersion.swift
/Users/admin/builder/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:244:66: error: result builder 'AlternationBuilder' does not implement any 'buildBlock' or a combination of 'buildPartialBlock(first:)' and 'buildPartialBlock(accumulated:next:)' with sufficient availability for this call site [#ResultBuilderMethods]
242 |         }
243 |
244 |         let preReleaseIdentifier: ChoiceOf<Substring> = ChoiceOf {
    |                                                                  `- error: result builder 'AlternationBuilder' does not implement any 'buildBlock' or a combination of 'buildPartialBlock(first:)' and 'buildPartialBlock(accumulated:next:)' with sufficient availability for this call site [#ResultBuilderMethods]
245 |             "0"
246 |             positiveNumber
/Users/admin/builder/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:233:30: error: trailing closure passed to parameter of type 'String' that does not accept a closure
231 |     }
232 |
233 |     static let regex = Regex {
    |                              `- error: trailing closure passed to parameter of type 'String' that does not accept a closure
234 |         // Swift compiler has troubles type checking this builder. 5.8.1 takes 30 seconds to do it on my PC. 5.9 errors out with "failed to type check in reasonable type"
235 |         // One could think this is a problem of the past, but actually no. With proper type annotation made by hand build takes only 3 seconds. 10 times better
_StringProcessing.Regex.init:2:8: note: 'init(_:)' declared here
1 | generic struct Regex {
2 | public init(_ pattern: String) throws}
  |        `- note: 'init(_:)' declared here
3 |
[#ResultBuilderMethods]: <https://docs.swift.org/compiler/documentation/diagnostics/result-builder-methods>
BUILD FAILURE 6.3 macosSpm