Swift Package IndexBuild Information
Failed to build mlx-libraries, reference 2.25.7 (dddb0b), with Swift 6.2 (beta) for Wasm on 2 Sep 2025 19:50:23 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1Build Log
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RunAll
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Builder version: 4.67.1
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: 2.25.7
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-examples
* tag 2.25.7 -> FETCH_HEAD
HEAD is now at dddb0b3 increment version on swift-transformers (#381)
Cloned https://github.com/ml-explore/mlx-swift-examples.git
Revision (git rev-parse @):
dddb0b3871390dd9dea8e7ff2c347cf7e74cec9d
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ml-explore/mlx-swift-examples.git at 2.25.7
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Build
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Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/ml-explore/mlx-swift-examples.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:3160178686d03086db4c1712d78c1980537bb37521128c64baade7f466b6b4aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest
Fetching https://github.com/1024jp/GzipSwift
Fetching https://github.com/huggingface/swift-transformers
Fetching https://github.com/ml-explore/mlx-swift
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Fetched https://github.com/1024jp/GzipSwift from cache (1.43s)
Fetched https://github.com/huggingface/swift-transformers from cache (2.07s)
Fetched https://github.com/ml-explore/mlx-swift from cache (2.07s)
Computing version for https://github.com/1024jp/GzipSwift
Computed https://github.com/1024jp/GzipSwift at 6.0.1 (6.50s)
Computing version for https://github.com/huggingface/swift-transformers
Computed https://github.com/huggingface/swift-transformers at 0.1.23 (0.70s)
Fetching https://github.com/johnmai-dev/Jinja
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Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.4.0 (1.79s)
Computing version for https://github.com/ml-explore/mlx-swift
Computed https://github.com/ml-explore/mlx-swift at 0.25.6 (0.55s)
Fetching https://github.com/apple/swift-numerics
[1/6348] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (0.90s)
Computing version for https://github.com/johnmai-dev/Jinja
Computed https://github.com/johnmai-dev/Jinja at 1.2.4 (8.32s)
Fetching https://github.com/apple/swift-collections.git
[1/17394] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.15s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.0 (2.01s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.2.1 (0.97s)
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.4.0
Creating working copy for https://github.com/1024jp/GzipSwift
Working copy of https://github.com/1024jp/GzipSwift resolved at 6.0.1
Creating working copy for https://github.com/ml-explore/mlx-swift
Working copy of https://github.com/ml-explore/mlx-swift resolved at 0.25.6
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.1.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.2.1
Creating working copy for https://github.com/johnmai-dev/Jinja
Working copy of https://github.com/johnmai-dev/Jinja resolved at 1.2.4
Creating working copy for https://github.com/huggingface/swift-transformers
Working copy of https://github.com/huggingface/swift-transformers resolved at 0.1.23
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/183] Write sources
[5/183] Copying gpt2_tokenizer_config.json
[5/183] Copying t5_tokenizer_config.json
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[27/183] Compiling system-zlib anchor.c
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[29/183] Write swift-version-24593BA9C3E375BF.txt
[30/183] Compiling version.cpp
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:3:
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:19:8: error: no type named 'mutex' in namespace 'std'
19 | std::mutex mtx;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:21:8: error: no type named 'condition_variable' in namespace 'std'
21 | std::condition_variable cond;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:23:8: error: no type named 'thread' in namespace 'std'
23 | std::thread thread;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:29:28: error: no member named 'mutex' in namespace 'std'
29 | std::lock_guard<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:40:14: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
40 | std::unique_lock<std::mutex> lk(mtx);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-05-30-a_wasm.artifactbundle/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-05-30-a_wasm/wasm32-unknown-wasi/WASI.sdk/include/c++/v1/__algorithm/unique_copy.h:102:1: note: 'unique_copy' declared here
102 | unique_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _BinaryPredicate __pred) {
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:3:
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:40:31: error: no member named 'mutex' in namespace 'std'
40 | std::unique_lock<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:41:19: error: use of undeclared identifier 'lk'
41 | cond.wait(lk, [this] { return !this->q.empty() || this->stop; });
| ^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:56:28: error: no member named 'mutex' in namespace 'std'
56 | std::lock_guard<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:153:8: error: no type named 'condition_variable' in namespace 'std'
153 | std::condition_variable completion_cv;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:154:8: error: no type named 'mutex' in namespace 'std'
154 | std::mutex mtx;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:109:28: error: no member named 'mutex' in namespace 'std'
109 | std::lock_guard<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:117:28: error: no member named 'mutex' in namespace 'std'
117 | std::lock_guard<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:128:10: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
128 | std::unique_lock<std::mutex> lk(mtx);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-05-30-a_wasm.artifactbundle/swift-6.2-DEVELOPMENT-SNAPSHOT-2025-05-30-a_wasm/wasm32-unknown-wasi/WASI.sdk/include/c++/v1/__algorithm/unique_copy.h:102:1: note: 'unique_copy' declared here
102 | unique_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _BinaryPredicate __pred) {
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:3:
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:128:27: error: no member named 'mutex' in namespace 'std'
128 | std::unique_lock<std::mutex> lk(mtx);
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:131:26: error: use of undeclared identifier 'lk'
131 | completion_cv.wait(lk, [this, n_tasks_old] {
| ^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:42:36: error: no member named 'promise' in namespace 'std'
42 | auto p = std::make_shared<std::promise<void>>();
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:42:48: error: expected '(' for function-style cast or type construction
42 | auto p = std::make_shared<std::promise<void>>();
| ~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:42:51: error: expected expression
42 | auto p = std::make_shared<std::promise<void>>();
| ^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:43:10: error: no member named 'future' in namespace 'std'
43 | std::future<void> f = p->get_future();
| ~~~~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[31/193] Compiling scheduler.cpp
[31/193] Compiling utils.cpp
[31/193] Compiling random.cpp
[31/193] Compiling transforms.cpp
[31/193] Compiling linalg.cpp
[31/193] Compiling primitives.cpp
[31/193] Compiling ops.cpp
BUILD FAILURE 6.2 wasm