Swift Package IndexBuild Information
Failed to build mlx-swift, reference 0.32.3 (196012), with Swift 6.3 for Linux on 3 Oct 2026 21:03:33 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ml-explore/mlx-swift.git
Reference: 0.32.3
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/ml-explore/mlx-swift
* tag 0.32.3 -> FETCH_HEAD
HEAD is now at 1960120 fix MLXLogger (#493)
Submodule path 'Source/Cmlx/mlx': checked out '1f8e74e3f12f31365464a6867c6579f0e9b29d85'
Submodule path 'Source/Cmlx/mlx-c': checked out 'ebc88f10caa1b625e6b581437a8dea6df8a70085'
Submodule 'submodules/mlx' (https://github.com/ml-explore/mlx) registered for path 'Source/Cmlx/mlx'
Submodule 'submodules/mlx-c' (https://github.com/ml-explore/mlx-c) registered for path 'Source/Cmlx/mlx-c'
Cloning into '/host/spi-builder-workspace/Source/Cmlx/mlx'...
Cloning into '/host/spi-builder-workspace/Source/Cmlx/mlx-c'...
Cloned https://github.com/ml-explore/mlx-swift.git
Revision (git rev-parse @):
19601207e9a0de51e03ee6ec0c3c5f3784275075
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ml-explore/mlx-swift.git at 0.32.3
========================================
Build
========================================
Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/ml-explore/mlx-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from saguaro1/spi-images
Digest: sha256:c577f8f8f4df4f423827bf5e7d96027716bb7030ef75b2fd4a15f7fb0043ce6d
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.3-latest
Fetching https://github.com/apple/swift-numerics
Fetching https://github.com/apple/swift-argument-parser
[1/6658] Fetching swift-numerics
[800/25684] Fetching swift-numerics, swift-argument-parser
Fetched https://github.com/apple/swift-numerics from cache (0.61s)
[5899/19026] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (0.80s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (0.97s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.8.2 (0.16s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.8.2
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': Invalid Exclude '/host/spi-builder-workspace/Source/Cmlx/mlx/build': File not found.
[0/9] Write sources
[3/9] Write swift-version-24593BA9C3E375BF.txt
[5/11] Emitting module ArgumentParserToolInfo
[6/11] Compiling ArgumentParserToolInfo ToolInfo.swift
[7/12] Wrapping AST for ArgumentParserToolInfo for debugging
[9/59] Emitting module ArgumentParser
[10/65] Compiling ArgumentParser ParentCommand.swift
[11/65] Compiling ArgumentParser AsyncParsableCommand.swift
[12/65] Compiling ArgumentParser CommandConfiguration.swift
[13/65] Compiling ArgumentParser CommandGroup.swift
[14/65] Compiling ArgumentParser EnumerableFlag.swift
[15/65] Compiling ArgumentParser ExpressibleByArgument.swift
[16/65] Compiling ArgumentParser ParsableArguments.swift
[17/65] Compiling ArgumentParser ArgumentVisibility.swift
[18/65] Compiling ArgumentParser CompletionKind.swift
[19/65] Compiling ArgumentParser Errors.swift
[20/65] Compiling ArgumentParser Flag.swift
[21/65] Compiling ArgumentParser NameSpecification.swift
[22/65] Compiling ArgumentParser Option.swift
[23/65] Compiling ArgumentParser OptionGroup.swift
[24/65] Compiling ArgumentParser Mutex.swift
[25/65] Compiling ArgumentParser Platform.swift
[26/65] Compiling ArgumentParser SequenceExtensions.swift
[27/65] Compiling ArgumentParser StringExtensions.swift
[28/65] Compiling ArgumentParser SwiftExtensions.swift
[29/65] Compiling ArgumentParser Tree.swift
[30/65] Compiling ArgumentParser AsyncCompletionsValidator.swift
[31/65] Compiling ArgumentParser CodingKeyValidator.swift
[32/65] Compiling ArgumentParser NonsenseFlagsValidator.swift
[33/65] Compiling ArgumentParser ParsableArgumentsValidation.swift
[34/65] Compiling ArgumentParser PositionalArgumentsValidator.swift
[35/65] Compiling ArgumentParser UniqueNamesValidator.swift
[36/65] Compiling ArgumentParser Name.swift
[37/65] Compiling ArgumentParser Parsed.swift
[38/65] Compiling ArgumentParser ParsedValues.swift
[39/65] Compiling ArgumentParser ParserError.swift
[40/65] Compiling ArgumentParser SplitArguments.swift
[41/65] Compiling ArgumentParser DumpHelpGenerator.swift
[42/65] Compiling ArgumentParser HelpCommand.swift
[43/65] Compiling ArgumentParser HelpGenerator.swift
[44/65] Compiling ArgumentParser MessageInfo.swift
[45/65] Compiling ArgumentParser UsageGenerator.swift
[46/65] Compiling ArgumentParser CollectionExtensions.swift
[47/65] Compiling ArgumentParser Foundation.swift
[48/65] Compiling ArgumentParser ParsableCommand.swift
[49/65] Compiling ArgumentParser ArgumentDecoder.swift
[50/65] Compiling ArgumentParser ArgumentDefinition.swift
[51/65] Compiling ArgumentParser ArgumentSet.swift
[52/65] Compiling ArgumentParser CommandParser.swift
[53/65] Compiling ArgumentParser InputKey.swift
[54/65] Compiling ArgumentParser InputOrigin.swift
[55/65] Compiling ArgumentParser BashCompletionsGenerator.swift
[56/65] Compiling ArgumentParser CompletionsGenerator.swift
[57/65] Compiling ArgumentParser FishCompletionsGenerator.swift
[58/65] Compiling ArgumentParser ZshCompletionsGenerator.swift
[59/65] Compiling ArgumentParser Argument.swift
[60/65] Compiling ArgumentParser ArgumentDiscussion.swift
[61/65] Compiling ArgumentParser ArgumentHelp.swift
[62/66] Wrapping AST for ArgumentParser for debugging
[64/72] Emitting module encuda
[65/72] Compiling encuda encuda.swift
[66/72] Compiling encuda encuda-utils.swift
[67/72] Compiling encuda encuda-compile.swift
[68/72] Compiling encuda encuda-error.swift
[69/72] Compiling encuda encuda-link.swift
[70/73] Wrapping AST for encuda for debugging
[71/73] Write Objects.LinkFileList
[72/73] Linking encuda-tool
warning: 'spi-builder-workspace': found 3 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/Source/Examples/CustomFunctionExample.swift
/host/spi-builder-workspace/Source/Examples/CustomFunctionExampleSimple.swift
/host/spi-builder-workspace/Source/Examples/Example1.swift
warning: 'spi-builder-workspace': found 3 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/Source/Examples/CustomFunctionExample.swift
/host/spi-builder-workspace/Source/Examples/Tutorial.swift
/host/spi-builder-workspace/Source/Examples/CustomFunctionExampleSimple.swift
warning: 'spi-builder-workspace': found 3 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/Source/Examples/CustomFunctionExample.swift
/host/spi-builder-workspace/Source/Examples/Tutorial.swift
/host/spi-builder-workspace/Source/Examples/Example1.swift
warning: 'spi-builder-workspace': found 3 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/Source/Examples/Example1.swift
/host/spi-builder-workspace/Source/Examples/Tutorial.swift
/host/spi-builder-workspace/Source/Examples/CustomFunctionExampleSimple.swift
[1/1] Compiling plugin CudaBuild
[2/2] Compiling plugin GenerateManual
[3/3] Compiling plugin GenerateDoccReference
Building for debugging...
[3/430] Write sources
[5/430] Compiling cLogSupport cLogSupport.c
[6/430] Compiling _NumericsShims _NumericsShims.c
[7/430] Write sources
[22/430] Compiling version.cpp
[23/430] Compiling utils.cpp
[24/430] Compiling format.cc
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/io_types.cpp:7:
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/mlx.h:13:
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:51:16: error: no member named 'format' in namespace 'std'
51 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:58:16: error: no member named 'format' in namespace 'std'
58 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:66:14: error: no member named 'format' in namespace 'std'
66 | std::format("[mlx_io_reader] {} in {}", msg, label()));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:113:16: error: no member named 'format' in namespace 'std'
113 | std::format(
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:122:14: error: no member named 'format' in namespace 'std'
122 | std::format("[mlx_io_writer] {} in {}", msg, label()));
| ^~~~~~
5 errors generated.
[25/430] Compiling io_types.cpp
[25/430] Compiling stream.cpp
[25/430] Compiling transforms.cpp
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/array.cpp:7:
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/mlx.h:13:
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:51:16: error: no member named 'format' in namespace 'std'
51 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:58:16: error: no member named 'format' in namespace 'std'
58 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:66:14: error: no member named 'format' in namespace 'std'
66 | std::format("[mlx_io_reader] {} in {}", msg, label()));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:113:16: error: no member named 'format' in namespace 'std'
113 | std::format(
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:122:14: error: no member named 'format' in namespace 'std'
122 | std::format("[mlx_io_writer] {} in {}", msg, label()));
| ^~~~~~
[25/430] Compiling array.cpp
[25/430] Write swift-version-24593BA9C3E375BF.txt
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/compile.cpp:8:
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/mlx.h:13:
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:51:16: error: no member named 'format' in namespace 'std'
51 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:58:16: error: no member named 'format' in namespace 'std'
58 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:66:14: error: no member named 'format' in namespace 'std'
66 | std::format("[mlx_io_reader] {} in {}", msg, label()));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:113:16: error: no member named 'format' in namespace 'std'
113 | std::format(
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:122:14: error: no member named 'format' in namespace 'std'
122 | std::format("[mlx_io_writer] {} in {}", msg, label()));
| ^~~~~~
[25/430] Compiling compile.cpp
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/stream.cpp:7:
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/mlx.h:13:
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:51:16: error: no member named 'format' in namespace 'std'
51 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:58:16: error: no member named 'format' in namespace 'std'
58 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
[25/430] Compiling stream.cpp
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/closure.cpp:8:
In file included from /host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/mlx.h:13:
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:51:16: error: no member named 'format' in namespace 'std'
51 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:58:16: error: no member named 'format' in namespace 'std'
58 | std::format("unable to read {} bytes (read {} instead)", n, read_n));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:66:14: error: no member named 'format' in namespace 'std'
66 | std::format("[mlx_io_reader] {} in {}", msg, label()));
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:113:16: error: no member named 'format' in namespace 'std'
113 | std::format(
| ^~~~~~
/host/spi-builder-workspace/Source/Cmlx/mlx-c/mlx/c/private/io.h:122:14: error: no member named 'format' in namespace 'std'
122 | std::format("[mlx_io_writer] {} in {}", msg, label()));
| ^~~~~~
[25/430] Compiling closure.cpp
BUILD FAILURE 6.3 linux