Swift Package IndexBuild Information
Failed to build swift-index, reference v0.6.1 (8a8abc), with Swift 6.3 for Wasm on 29 Sep 2026 13:11:01 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344845-1":/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:wasm-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/alexey1312/swift-index.git
Reference: v0.6.1
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/alexey1312/swift-index
* tag v0.6.1 -> FETCH_HEAD
HEAD is now at 8a8abc5 fix: stop MLX embedding stalls and crashes on Ctrl-C
Cloned https://github.com/alexey1312/swift-index.git
Revision (git rev-parse @):
8a8abc542afbacf629f0ca596099021844cad90d
SUCCESS checkout https://github.com/alexey1312/swift-index.git at v0.6.1
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/alexey1312/swift-index.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from saguaro1/spi-images
Digest: sha256:253aad7f5b11d25cf9eaef34120b94cd8a325782929c57fb304a7711494a3f9a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest
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In file included from /host/spi-builder-workspace/.build/checkouts/usearch/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_dense.hpp:8:
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:85:
/root/.swiftpm/swift-sdks/swift-6.3.2-RELEASE_wasm.artifactbundle/swift-6.3.2-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk/include/wasm32-wasip1/sys/mman.h:2:2: error: "WASI lacks a true mmap; to enable minimal mmap emulation, compile with -D_WASI_EMULATED_MMAN and link with -lwasi-emulated-mman"
2 | #error "WASI lacks a true mmap; to enable minimal mmap emulation, \
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:788:18: error: no member named 'this_thread' in namespace 'std'
788 | std::this_thread::yield();
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:1678:61: error: no member named 'thread' in namespace 'std'
1678 | : index_limits_t(n, (std::max<std::size_t>)(1, std::thread::hardware_concurrency())) {}
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:2106:63: error: use of undeclared identifier 'PROT_READ'
2106 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^~~~~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:2106:74: error: use of undeclared identifier 'MAP_SHARED'
2106 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^~~~~~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:2107:21: error: use of undeclared identifier 'MAP_FAILED'
2107 | if (file == MAP_FAILED) {
| ^~~~~~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:2131:9: error: use of undeclared identifier 'munmap'
2131 | munmap(ptr_, length_);
| ^~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:2554:10: error: no type named 'mutex' in namespace 'std'
2554 | std::mutex global_mutex_{};
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:3215:31: error: no member named 'mutex' in namespace 'std'
3215 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:3362:35: error: no member named 'mutex' in namespace 'std'
3362 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:4927:10: error: no type named 'mutex' in namespace 'std'
4927 | std::mutex free_men_mutex{};
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:4970:39: error: no member named 'mutex' in namespace 'std'
4970 | std::unique_lock<std::mutex> pop_lock(free_men_mutex);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:5026:43: error: no member named 'mutex' in namespace 'std'
5026 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ^~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index.hpp:5029:43: error: no member named 'mutex' in namespace 'std'
5029 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ^~~~~
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_dense.hpp:12:
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_plugins.hpp:1355:14: error: no type named 'thread' in namespace 'std'
1355 | std::thread native_;
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_plugins.hpp:1375:63: error: no member named 'thread' in namespace 'std'
1375 | : threads_count_(threads_count ? threads_count : std::thread::hardware_concurrency()) {}
| ~~~~~^
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_plugins.hpp:1628:48: error: use of undeclared identifier 'PROT_WRITE'
1628 | auto* result = mmap(NULL, count_bytes, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
| ^~~~~~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_plugins.hpp:1628:61: error: use of undeclared identifier 'PROT_READ'
1628 | auto* result = mmap(NULL, count_bytes, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
| ^~~~~~~~~
/host/spi-builder-workspace/.build/checkouts/usearch/include/usearch/index_plugins.hpp:1628:72: error: use of undeclared identifier 'MAP_PRIVATE'
1628 | auto* result = mmap(NULL, count_bytes, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
| ^~~~~~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[41/957] Compiling USearchC lib.cpp
[42/957] Emitting module SwiftSyntax603
[43/957] Emitting module _NIOBase64
BUILD FAILURE 6.3 wasm