Swift Package IndexBuild Information
Successful build of mlx-libraries, reference main (378f24), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 05:25:00 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64Build 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/ml-explore/mlx-swift-examples.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ml-explore/mlx-swift-examples
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 378f244 MLXChatExample: fix VLM image handling on iOS (PhotosPicker, EXIF, empty assistant trim) (#472)
Cloned https://github.com/ml-explore/mlx-swift-examples.git
Revision (git rev-parse @):
378f2449c257788c5067b9f8b086731d76b39b33
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ml-explore/mlx-swift-examples.git at main
========================================
Build
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Selected platform: macosSpm
Swift version: 6.4
Building package at path: $PWD
https://github.com/ml-explore/mlx-swift-examples.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Constructing description]
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Build complete! (44.37 sec)
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warning: missing creator for mutated node: ('/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/mlx-swift_Cmlx.bundle/Contents/MacOS')
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/steel_attention.metal:6:
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/kernels/steel_attention.h:3:
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/attn.h:6:
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/../../steel/attn/mma.h:11:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/../../steel/utils/integral_constant.h:108:6: warning: constexpr if is a C++17 extension [-Wc++17-extensions]
if constexpr (start < stop) {
^
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/steel_attention.metal:6:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/kernels/steel_attention.h:356:16: warning: constexpr if is a C++17 extension [-Wc++17-extensions]
if constexpr (is_bool) {
^
/Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/kernels/steel_attention.h:426:14: warning: constexpr if is a C++17 extension [-Wc++17-extensions]
if constexpr (BD == 128) {
^
/Users/admin/builder/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx-generated/metal/steel/attn/kernels/../../../steel/attn/kernels/steel_attention.h:436:14: warning: constexpr if is a C++17 extension [-Wc++17-extensions]
if constexpr (BD == 128) {
^
4 warnings generated.
/Users/admin/builder/spi-builder-workspace/Libraries/StableDiffusion/UNet.swift:134:13: [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m132 |[0;0m ) -> MLXArray {
[0;36m133 |[0;0m let inputX = x
[0;36m134 |[0;0m let dtype = x.dtype
[0;36m|[0;0m `- [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m135 |[0;0m var x = x
[0;36m136 |[0;0m
/Users/admin/builder/spi-builder-workspace/Libraries/StableDiffusion/UNet.swift:196:13: [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m194 |[0;0m
[0;36m195 |[0;0m func callAsFunction(_ x: MLXArray, timeEmbedding: MLXArray? = nil) -> MLXArray {
[0;36m196 |[0;0m let dtype = x.dtype
[0;36m|[0;0m `- [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m197 |[0;0m
[0;36m198 |[0;0m var y = norm1(x)
/Users/admin/builder/spi-builder-workspace/Libraries/StableDiffusion/UNet.swift:503:13: [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m501 |[0;0m
[0;36m502 |[0;0m // postprocess the output
[0;36m503 |[0;0m let dtype = x.dtype
[0;36m|[0;0m `- [1;33mwarning: [1;39minitialization of immutable value 'dtype' was never used; consider replacing with assignment to '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m504 |[0;0m x = convNormOut(x)
[0;36m505 |[0;0m x = silu(x)
[#NoUsage]: <https://docs.swift.org/compiler/documentation/diagnostics/no-usage>
/Users/admin/builder/spi-builder-workspace/Libraries/StableDiffusion/Image.swift:135:20: [1;33mwarning: [1;39mimmutable value 'C' was never used; consider replacing with '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m133 |[0;0m
[0;36m134 |[0;0m let arrayData = raster.asData()
[0;36m135 |[0;0m let (H, W, C) = raster.shape3
[0;36m|[0;0m `- [1;33mwarning: [1;39mimmutable value 'C' was never used; consider replacing with '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m136 |[0;0m let cs = CGColorSpace(name: CGColorSpace.sRGB)!
[0;36m137 |[0;0m
[#NoUsage]: <https://docs.swift.org/compiler/documentation/diagnostics/no-usage>
Build complete.
{
"dependencies" : [
{
"identity" : "mlx-swift",
"requirement" : {
"range" : [
{
"lower_bound" : "0.31.4",
"upper_bound" : "0.32.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/ml-explore/mlx-swift"
},
{
"identity" : "swift-transformers",
"requirement" : {
"range" : [
{
"lower_bound" : "1.3.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/huggingface/swift-transformers"
},
{
"identity" : "gzipswift",
"requirement" : {
"range" : [
{
"lower_bound" : "6.0.1",
"upper_bound" : "6.0.2"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/1024jp/GzipSwift"
}
],
"manifest_display_name" : "mlx-libraries",
"name" : "mlx-libraries",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "ios",
"version" : "16.0"
}
],
"products" : [
{
"name" : "MLXMNIST",
"targets" : [
"MLXMNIST"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "StableDiffusion",
"targets" : [
"StableDiffusion"
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"type" : {
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],
"targets" : [
{
"c99name" : "StableDiffusion",
"module_type" : "SwiftTarget",
"name" : "StableDiffusion",
"path" : "Libraries/StableDiffusion",
"product_dependencies" : [
"MLX",
"MLXNN",
"MLXRandom",
"Transformers"
],
"product_memberships" : [
"StableDiffusion"
],
"sources" : [
"Clip.swift",
"Configuration.swift",
"Image.swift",
"Load.swift",
"Sampler.swift",
"StableDiffusion.swift",
"Tokenizer.swift",
"UNet.swift",
"VAE.swift"
],
"type" : "library"
},
{
"c99name" : "MLXMNIST",
"module_type" : "SwiftTarget",
"name" : "MLXMNIST",
"path" : "Libraries/MLXMNIST",
"product_dependencies" : [
"MLX",
"MLXFast",
"MLXNN",
"MLXOptimizers",
"MLXRandom",
"Gzip"
],
"product_memberships" : [
"MLXMNIST"
],
"sources" : [
"Files.swift",
"MNIST.swift",
"Random.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
Done.