Swift Package Index

Build Information

Failed to build MuJoCo, reference v2.3.1 (ebfd2d), with Swift 6.4 for macOS (SPM) on 18 Sep 2026 21:39:02 UTC.

Build Command

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

Build Log

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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/liuliu/swift-mujoco.git
Reference: v2.3.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/liuliu/swift-mujoco
 * tag               v2.3.1     -> FETCH_HEAD
HEAD is now at ebfd2d1 Update to 2.3.1
Cloned https://github.com/liuliu/swift-mujoco.git
Revision (git rev-parse @):
ebfd2d198baca173239e43af3336cab6b1498042
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/liuliu/swift-mujoco.git at v2.3.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/liuliu/swift-mujoco.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 482]
[Planning deferred tasks]
[86 / 291]
[97 / 294] RealModule
[107 / 304] C_mujoco
[110 / 318]
[112 / 318] C_mujoco
[113 / 318] RealModule
Fetching https://github.com/liuliu/mujoco.git
[1/5625] Fetching mujoco
Fetched https://github.com/liuliu/mujoco.git (4.21s)
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-numerics
[1/2345] Fetching swift-docc-plugin
[166/8981] Fetching swift-docc-plugin, swift-numerics
Fetched https://github.com/apple/swift-docc-plugin (1.43s)
Fetched https://github.com/apple/swift-numerics (1.43s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (2.03s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (0.65s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3823] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (1.36s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (2.11s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/liuliu/mujoco.git
Working copy of https://github.com/liuliu/mujoco.git resolved at efd310e00b1766b45e234952b60f6a2291cc90b0
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.1.1
warning: 'spi-builder-workspace': failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: 'spi-builder-workspace': you may be able to install glfw3 using your system-packager:
    brew install glfw
error: clang dependency scanning failure: While building module 'C_glfw' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/C_glfw/glfw.h:2:10: fatal error: 'GLFW/glfw3.h' file not found
module-include.input:1:2: fatal error: could not build module 'C_glfw'
error: /Users/admin/builder/spi-builder-workspace/Sources/GLContext.swift:4:10 unable to resolve module dependency: 'C_glfw'
error: clang dependency scanning failure: While building module 'C_glfw' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/C_glfw/glfw.h:2:10: fatal error: 'GLFW/glfw3.h' file not found
module-include.input:1:2: fatal error: could not build module 'C_glfw'
error: SwiftDriver MuJoCo normal arm64 com.apple.xcode.tools.swift.compiler failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name MuJoCo -Onone @/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/tinyxml2.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/lodepng.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/qhull.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/ccd.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/C_mujoco.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/Sources/C_glfw/module.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/CShim_mujoco.modulemap -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo-OutputFileMap.json -save-temps -color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/mujoco/external/tinyxml2/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/mujoco/external/lodepng/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/mujoco/external/qhull/src/libqhull_r -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/mujoco/external/libccd/src/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/mujoco/include -Xcc -I/Users/admin/builder/spi-builder-workspace/Sources/CShim -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/MuJoCo.build/Debug/MuJoCo-t.build/Objects-normal/arm64/MuJoCo-Swift.h -working-directory /Users/admin/builder -experimental-emit-module-separately -disable-cmo
error: Build failed
BUILD FAILURE 6.4 macosSpm