Build Information
Failed to build simd-tools, reference main (69e1bb), with Swift 6.3 for macOS (Xcode) using Xcode 26.4 on 18 Apr 2026 04:30:06 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDTools -destination platform=macOS,arch=arm64Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/computer-graphics-tools/simd-tools.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/computer-graphics-tools/simd-tools
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 69e1bb3 fix warnings
Cloned https://github.com/computer-graphics-tools/simd-tools.git
Revision (git rev-parse @):
69e1bb3b0fffedfd2865779f1576d650b9fd68db
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/computer-graphics-tools/simd-tools.git at main
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Build
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Selected platform: macosXcodebuild
Swift version: 6.3
Building package at path: $PWD
https://github.com/computer-graphics-tools/simd-tools.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/swiftlang/swift-syntax.git
Creating working copy of package ‘swift-syntax’
Checking out 602.0.0 of package ‘swift-syntax’
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/602.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip
Resolve Package Graph
Resolved source packages:
swift-syntax: https://github.com/swiftlang/swift-syntax.git @ 602.0.0
simd-tools: /Users/admin/builder/spi-builder-workspace
resolved source packages: swift-syntax, simd-tools
2026-04-18 00:29:58.132 xcodebuild[525:3013] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDTools -destination platform=macOS,arch=arm64
Command line invocation:
/Applications/Xcode-26.4.0.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 SIMDTools -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
swift-syntax: https://github.com/swiftlang/swift-syntax.git @ 602.0.0
simd-tools: /Users/admin/builder/spi-builder-workspace
2026-04-18 00:30:02.600 xcodebuild[627:3753] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 00:30:03.258 xcodebuild[627:3753] [MT] DVTAssertions: Warning in IDEFrameworks/IDEFoundation/Execution/RunContextManager/IDERunContextManager.m:926
Details: Error deleting scheme: Cannot modify data because the process disallows saving.
Object: <IDERunContextManager: 0xb95ff8300>
Method: -deleteRunContexts:completionQueue:completionBlock:
Thread: <_NSMainThread: 0x105279de0>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2026-04-18 00:30:03.259 xcodebuild[627:3753] could not delete old scheme: Error Domain=DVTCustomDataStoringErrors Code=0 "Cannot modify data because the process disallows saving." UserInfo={NSLocalizedDescription=Cannot modify data because the process disallows saving.}
2026-04-18 00:30:03.261 xcodebuild[627:3753] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-18-04_00-30-0003.xcresult
xcodebuild: error: The workspace named "spi-builder-workspace" does not contain a scheme named "SIMDTools". The "-list" option can be used to find the names of the schemes in the workspace.
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
simd-tools: /Users/admin/builder/spi-builder-workspace
swift-syntax: https://github.com/swiftlang/swift-syntax.git @ 602.0.0
resolved source packages: simd-tools, swift-syntax
2026-04-18 00:30:04.816 xcodebuild[654:3946] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SIMDTools -destination platform=macOS,arch=arm64
Command line invocation:
/Applications/Xcode-26.4.0.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 SIMDTools -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
swift-syntax: https://github.com/swiftlang/swift-syntax.git @ 602.0.0
simd-tools: /Users/admin/builder/spi-builder-workspace
2026-04-18 00:30:06.393 xcodebuild[658:3996] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-04-18 00:30:06.475 xcodebuild[658:3996] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-18-04_00-30-0006.xcresult
xcodebuild: error: The workspace named "spi-builder-workspace" does not contain a scheme named "SIMDTools". The "-list" option can be used to find the names of the schemes in the workspace.
BUILD FAILURE 6.3 macosXcodebuild