Build Information
Successful build of swift-once-macro, reference 1.1.1 (5f9d4e), with Swift 6.3 for macOS (SPM) on 11 Apr 2026 14:14:12 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/davdroman/swift-once-macro.git
Reference: 1.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/davdroman/swift-once-macro
* tag 1.1.1 -> FETCH_HEAD
HEAD is now at 5f9d4e7 Bump swift-syntax upper bound to ..<604 (#8)
Cloned https://github.com/davdroman/swift-once-macro.git
Revision (git rev-parse @):
5f9d4e77cd95335fe14b44064fcf7f96e8ed56a0
SUCCESS checkout https://github.com/davdroman/swift-once-macro.git at 1.1.1
Fetching https://github.com/pointfreeco/swift-snapshot-testing
Fetching https://github.com/pointfreeco/swift-custom-dump
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
Fetching https://github.com/swiftlang/swift-syntax
Fetching https://github.com/pointfreeco/swift-macro-testing
[1/5464] Fetching swift-custom-dump
[165/6425] Fetching swift-custom-dump, swift-macro-testing
[223/12148] Fetching swift-custom-dump, swift-macro-testing, xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (1.01s)
[4567/6684] Fetching swift-macro-testing, xctest-dynamic-overlay
[6685/22730] Fetching swift-macro-testing, xctest-dynamic-overlay, swift-snapshot-testing
[6846/97697] Fetching swift-macro-testing, xctest-dynamic-overlay, swift-snapshot-testing, swift-syntax
Fetched https://github.com/pointfreeco/swift-macro-testing from cache (8.01s)
Fetched https://github.com/pointfreeco/swift-snapshot-testing from cache (8.02s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (8.02s)
Fetched https://github.com/swiftlang/swift-syntax from cache (8.02s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 602.0.0 (11.65s)
Computing version for https://github.com/pointfreeco/swift-macro-testing
Computed https://github.com/pointfreeco/swift-macro-testing at 0.6.4 (0.57s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.18.9 (0.59s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.5.0 (0.60s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (0.61s)
Creating working copy for https://github.com/pointfreeco/swift-macro-testing
Working copy of https://github.com/pointfreeco/swift-macro-testing resolved at 0.6.4
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.18.9
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 602.0.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/602.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip
Downloaded https://download.swift.org/prebuilts/swift-syntax/602.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip (0.34s)
========================================
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": "swift-once-macro",
"name": "swift-once-macro",
"url": "https://github.com/davdroman/swift-once-macro.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-once-macro",
"traits": [
"default"
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"dependencies": [
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}
Fetching https://github.com/davdroman/swift-once-macro.git
[1/377] Fetching swift-once-macro
Fetched https://github.com/davdroman/swift-once-macro.git from cache (0.76s)
Fetching https://github.com/swiftlang/swift-syntax from cache
Fetched https://github.com/swiftlang/swift-syntax from cache (0.89s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 603.0.0 (1.79s)
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 603.0.0
Creating working copy for https://github.com/davdroman/swift-once-macro.git
Working copy of https://github.com/davdroman/swift-once-macro.git resolved at 1.1.1 (5f9d4e7)
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip (0.33s)
warning: '.resolve-product-dependencies': dependency 'swift-once-macro' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/davdroman/swift-once-macro.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/6] Write sources
[3/6] Write swift-version--6988338F2F200930.txt
[5/9] Compiling OnceMacro OnceMacroPlugin.swift
[6/9] Emitting module OnceMacro
[7/9] Compiling OnceMacro OnceMacro.swift
[7/9] Write Objects.LinkFileList
[8/9] Linking OnceMacro-tool
[10/15] Compiling Once Macros.swift
[11/15] Emitting module Once
[12/15] Compiling Once Exports.swift
[14/15] Compiling Once Macros.swift
[15/15] Emitting module Once
Build complete! (8.47s)
Build complete.
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Done.