Swift Package IndexBuild Information
Failed to build MLXAudio, reference v69.2.2 (d82ad7), with Swift 6.3 for Wasm on 24 Apr 2026 23:40:53 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/gaelic-ghost/mlx-audio-swift.git
Reference: v69.2.2
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/gaelic-ghost/mlx-audio-swift
* tag v69.2.2 -> FETCH_HEAD
HEAD is now at d82ad71 models: expose bounded qwen replay decode
Cloned https://github.com/gaelic-ghost/mlx-audio-swift.git
Revision (git rev-parse @):
d82ad715fd1ffb841c7771deacd158faa8183f0c
SUCCESS checkout https://github.com/gaelic-ghost/mlx-audio-swift.git at v69.2.2
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/gaelic-ghost/mlx-audio-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Fetching https://github.com/huggingface/swift-huggingface.git
Fetching https://github.com/huggingface/swift-transformers.git
Fetching https://github.com/ml-explore/mlx-swift-lm.git
Fetching https://github.com/ml-explore/mlx-swift.git
[1/2340] Fetching swift-huggingface
[750/8582] Fetching swift-huggingface, swift-transformers
[2537/22811] Fetching swift-huggingface, swift-transformers, mlx-swift
[6720/30440] Fetching swift-huggingface, swift-transformers, mlx-swift, mlx-swift-lm
Fetched https://github.com/huggingface/swift-transformers.git from cache (1.13s)
[20068/24198] Fetching swift-huggingface, mlx-swift, mlx-swift-lm
Fetched https://github.com/huggingface/swift-huggingface.git from cache (2.10s)
Fetched https://github.com/ml-explore/mlx-swift-lm.git from cache (2.11s)
Fetched https://github.com/ml-explore/mlx-swift.git from cache (2.12s)
Computing version for https://github.com/huggingface/swift-huggingface.git
Computed https://github.com/huggingface/swift-huggingface.git at 0.9.0 (2.64s)
Fetching https://github.com/mattt/EventSource.git
Fetching https://github.com/apple/swift-crypto.git
[1/271] Fetching eventsource
Fetched https://github.com/mattt/EventSource.git from cache (0.27s)
[1/17436] Fetching swift-crypto
Fetched https://github.com/apple/swift-crypto.git from cache (2.31s)
Computing version for https://github.com/ml-explore/mlx-swift-lm.git
Computed https://github.com/ml-explore/mlx-swift-lm.git at 2.31.3 (2.97s)
Computing version for https://github.com/ml-explore/mlx-swift.git
Computed https://github.com/ml-explore/mlx-swift.git at 0.31.3 (0.75s)
Fetching https://github.com/apple/swift-numerics
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (0.57s)
Computing version for https://github.com/huggingface/swift-transformers.git
Computed https://github.com/huggingface/swift-transformers.git at 1.2.1 (1.15s)
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/huggingface/swift-jinja.git
Fetching https://github.com/ibireme/yyjson.git
[1/1051] Fetching swift-jinja
[1052/24731] Fetching swift-jinja, swift-collections
[2710/29174] Fetching swift-jinja, swift-collections, yyjson
Fetched https://github.com/huggingface/swift-jinja.git from cache (1.71s)
[22440/28123] Fetching swift-collections, yyjson
Fetched https://github.com/ibireme/yyjson.git from cache (1.72s)
[18471/23680] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (2.70s)
Computing version for https://github.com/ibireme/yyjson.git
Computed https://github.com/ibireme/yyjson.git at 0.12.0 (5.50s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (0.45s)
Computing version for https://github.com/mattt/EventSource.git
Computed https://github.com/mattt/EventSource.git at 1.4.1 (0.47s)
Fetching https://github.com/apple/swift-nio.git
[1/83219] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git from cache (11.30s)
Computing version for https://github.com/huggingface/swift-jinja.git
Computed https://github.com/huggingface/swift-jinja.git at 2.3.5 (12.12s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (1.40s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.99.0 (1.45s)
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-system.git
[1/1820] Fetching swift-atomics
[602/7421] Fetching swift-atomics, swift-system
Fetched https://github.com/apple/swift-system.git from cache (1.10s)
Fetched https://github.com/apple/swift-atomics.git from cache (1.13s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (2.01s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (0.89s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.5.0 (4.85s)
Fetching https://github.com/apple/swift-asn1.git
[1/1803] Fetching swift-asn1
Fetched https://github.com/apple/swift-asn1.git from cache (0.64s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.0 (1.59s)
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.1.1
Creating working copy for https://github.com/huggingface/swift-transformers.git
Working copy of https://github.com/huggingface/swift-transformers.git resolved at 1.2.1
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.99.0
Creating working copy for https://github.com/mattt/EventSource.git
Working copy of https://github.com/mattt/EventSource.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.5.0
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.0
Creating working copy for https://github.com/ibireme/yyjson.git
Working copy of https://github.com/ibireme/yyjson.git resolved at 0.12.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/huggingface/swift-huggingface.git
Working copy of https://github.com/huggingface/swift-huggingface.git resolved at 0.9.0
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Creating working copy for https://github.com/huggingface/swift-jinja.git
Working copy of https://github.com/huggingface/swift-jinja.git resolved at 2.3.5
Creating working copy for https://github.com/ml-explore/mlx-swift.git
Working copy of https://github.com/ml-explore/mlx-swift.git resolved at 0.31.3
Creating working copy for https://github.com/ml-explore/mlx-swift-lm.git
Working copy of https://github.com/ml-explore/mlx-swift-lm.git resolved at 2.31.3
Building for debugging...
[0/625] Copying t5_tokenizer_config.json
[1/625] Copying gpt2_tokenizer_config.json
[2/625] Write sources
[42/625] Compiling _NumericsShims _NumericsShims.c
[43/625] Compiling _AtomicsShims.c
[44/625] Compiling version.cpp
[45/625] Write swift-version-24593BA9C3E375BF.txt
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:40:31: 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: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:160:8: error: no type named 'condition_variable' in namespace 'std'
160 | std::condition_variable completion_cv;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:161:8: error: no type named 'mutex' in namespace 'std'
161 | std::mutex mtx;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:112:28: error: no member named 'mutex' in namespace 'std'
112 | std::lock_guard<std::mutex> lk(mtx);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:120:28: error: no member named 'mutex' in namespace 'std'
120 | std::lock_guard<std::mutex> lk(mtx);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.h:131:27: error: no member named 'mutex' in namespace 'std'
131 | std::unique_lock<std::mutex> lk(mtx);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:47:36: error: no member named 'promise' in namespace 'std'
47 | auto p = std::make_shared<std::promise<void>>();
| ^~~~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:47:48: error: expected '(' for function-style cast or type construction
47 | auto p = std::make_shared<std::promise<void>>();
| ~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:47:51: error: expected expression
47 | auto p = std::make_shared<std::promise<void>>();
| ^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:48:10: error: no member named 'future' in namespace 'std'
48 | std::future<void> f = p->get_future();
| ^~~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:48:21: error: expected '(' for function-style cast or type construction
48 | std::future<void> f = p->get_future();
| ~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:48:23: error: use of undeclared identifier 'f'
48 | std::future<void> f = p->get_future();
| ^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/scheduler.cpp:50:5: error: use of undeclared identifier 'f'
50 | f.wait();
| ^
18 errors generated.
[46/625] Compiling scheduler.cpp
[46/625] Compiling linalg.cpp
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/ops.cpp:14:
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/fast_primitives.h:6:
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/primitives.h:10:
In file included from /host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/io/load.h:16:
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:40:15: error: no template named 'future' in namespace 'std'
40 | -> std::future<typename std::invoke_result_t<F, Args...>>;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:48:20: error: no member named 'thread' in namespace 'std'
48 | std::vector<std::thread> workers;
| ^~~~~~
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:50:8: error: no type named 'mutex' in namespace 'std'
50 | std::mutex queue_mutex;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:51:8: error: no type named 'condition_variable' in namespace 'std'
51 | std::condition_variable condition;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:61:13: error: no template named 'future' in namespace 'std'
61 | -> std::future<typename std::invoke_result_t<F, Args...>> {
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/mlx-swift/Source/Cmlx/mlx/mlx/threadpool.h:64:37: error: no member named 'packaged_task' in namespace 'std'
64 | auto task = std::make_shared<std::packaged_task<return_type()>>(
| ^~~~~~~~~~~~~
[46/625] Compiling ops.cpp
[46/625] Compiling random.cpp
[46/625] Compiling transforms.cpp
[46/625] Compiling primitives.cpp
[46/625] Compiling utils.cpp
[46/625] Compiling yyjson.c
BUILD FAILURE 6.3 wasm