Swift Package IndexBuild Information
Failed to build USearch, reference v2.21.0 (fd6279), with Swift 6.1 for Wasm on 4 Sep 2025 16:37:57 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/unum-cloud/usearch.git
Reference: v2.21.0
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/unum-cloud/usearch
* tag v2.21.0 -> FETCH_HEAD
HEAD is now at fd6279a Release: v2.21.0 [skip ci] ### Minor
Submodule path 'fp16': checked out '0a92994d729ff76a58f692d3028ca1b64b145d91'
Submodule path 'simsimd': checked out '869b8d84930af1413c34c92ede48e18d1d951b6d'
Submodule path 'stringzilla': checked out '2f4b1386ca2ed3c4178c1e4f467a2e78a911f3b2'
Submodule 'fp16' (https://github.com/maratyszcza/fp16) registered for path 'fp16'
Submodule 'simsimd' (https://github.com/ashvardanian/simsimd) registered for path 'simsimd'
Submodule 'stringzilla' (https://github.com/ashvardanian/stringzilla) registered for path 'stringzilla'
Cloning into '/host/spi-builder-workspace/fp16'...
Cloning into '/host/spi-builder-workspace/simsimd'...
Cloning into '/host/spi-builder-workspace/stringzilla'...
Cloned https://github.com/unum-cloud/usearch.git
Revision (git rev-parse @):
fd6279af6bc205baab1e0ad48651cc0f875cdb7d
SUCCESS checkout https://github.com/unum-cloud/usearch.git at v2.21.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/unum-cloud/usearch.git
https://github.com/unum-cloud/usearch.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"cxx_language_standard" : "c++11",
"dependencies" : [
],
"manifest_display_name" : "USearch",
"name" : "USearch",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "USearch",
"targets" : [
"USearch"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "USearchTestsSwift",
"module_type" : "SwiftTarget",
"name" : "USearchTestsSwift",
"path" : "swift",
"sources" : [
"Test.swift"
],
"target_dependencies" : [
"USearch"
],
"type" : "test"
},
{
"c99name" : "USearchC",
"module_type" : "ClangTarget",
"name" : "USearchC",
"path" : "c",
"product_memberships" : [
"USearch"
],
"sources" : [
"lib.cpp"
],
"type" : "library"
},
{
"c99name" : "USearch",
"module_type" : "SwiftTarget",
"name" : "USearch",
"path" : "swift",
"product_memberships" : [
"USearch"
],
"sources" : [
"USearchIndex+Sugar.swift",
"USearchIndex.swift",
"Util.swift"
],
"target_dependencies" : [
"USearchC"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:eb0758f51dbd6991fb9e51dedbfbcbec142ffc0d3b9b8ad91fa19d35e5136f0a
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Building for debugging...
[0/3] Write sources
In file included from /host/spi-builder-workspace/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
In file included from /host/spi-builder-workspace/include/usearch/index.hpp:83:
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:1405:36: error: no member named 'thread' in namespace 'std'
1405 | std::size_t threads_add = std::thread::hardware_concurrency();
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1407:39: error: no member named 'thread' in namespace 'std'
1407 | std::size_t threads_search = std::thread::hardware_concurrency();
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1410:80: error: no member named 'thread' in namespace 'std'
1410 | inline index_limits_t(std::size_t n = 0) noexcept : index_limits_t(n, std::thread::hardware_concurrency()) {}
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1821:63: error: use of undeclared identifier 'PROT_READ'
1821 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1821:74: error: use of undeclared identifier 'MAP_SHARED'
1821 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1822:21: error: use of undeclared identifier 'MAP_FAILED'
1822 | if (file == MAP_FAILED) {
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1846:9: error: use of undeclared identifier 'munmap'
1846 | munmap(ptr_, length_);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:2269:10: error: no type named 'mutex' in namespace 'std'
2269 | std::mutex global_mutex_{};
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:2807:14: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
2807 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:2807:31: error: no member named 'mutex' in namespace 'std'
2807 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:2827:13: error: use of undeclared identifier 'new_level_lock'
2827 | new_level_lock.unlock();
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:2951:18: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
2951 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:2951:35: error: no member named 'mutex' in namespace 'std'
2951 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4409:10: error: no type named 'mutex' in namespace 'std'
4409 | std::mutex free_men_mutex{};
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4452:22: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
4452 | std::unique_lock<std::mutex> pop_lock(free_men_mutex);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:4452:39: error: no member named 'mutex' in namespace 'std'
4452 | std::unique_lock<std::mutex> pop_lock(free_men_mutex);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4508:26: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
4508 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:4508:43: error: no member named 'mutex' in namespace 'std'
4508 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ~~~~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[1/3] Compiling USearchC lib.cpp
[1/3] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:eb0758f51dbd6991fb9e51dedbfbcbec142ffc0d3b9b8ad91fa19d35e5136f0a
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
warning: 'spi-builder-workspace': found 4 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/swift/USearchIndex.swift
/host/spi-builder-workspace/swift/USearchIndex+Sugar.swift
/host/spi-builder-workspace/swift/README.md
/host/spi-builder-workspace/swift/Util.swift
[0/1] Planning build
Building for debugging...
[0/2] Write swift-version-24593BA9C3E375BF.txt
In file included from /host/spi-builder-workspace/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
In file included from /host/spi-builder-workspace/include/usearch/index.hpp:83:
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:1405:36: error: no member named 'thread' in namespace 'std'
1405 | std::size_t threads_add = std::thread::hardware_concurrency();
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1407:39: error: no member named 'thread' in namespace 'std'
1407 | std::size_t threads_search = std::thread::hardware_concurrency();
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1410:80: error: no member named 'thread' in namespace 'std'
1410 | inline index_limits_t(std::size_t n = 0) noexcept : index_limits_t(n, std::thread::hardware_concurrency()) {}
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1821:63: error: use of undeclared identifier 'PROT_READ'
1821 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1821:74: error: use of undeclared identifier 'MAP_SHARED'
1821 | byte_t* file = (byte_t*)mmap(NULL, file_stat.st_size, PROT_READ, MAP_SHARED, descriptor, 0);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1822:21: error: use of undeclared identifier 'MAP_FAILED'
1822 | if (file == MAP_FAILED) {
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:1846:9: error: use of undeclared identifier 'munmap'
1846 | munmap(ptr_, length_);
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:2269:10: error: no type named 'mutex' in namespace 'std'
2269 | std::mutex global_mutex_{};
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:2807:14: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
2807 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:2807:31: error: no member named 'mutex' in namespace 'std'
2807 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:2827:13: error: use of undeclared identifier 'new_level_lock'
2827 | new_level_lock.unlock();
| ^
/host/spi-builder-workspace/include/usearch/index.hpp:2951:18: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
2951 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:2951:35: error: no member named 'mutex' in namespace 'std'
2951 | std::unique_lock<std::mutex> new_level_lock(global_mutex_);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4409:10: error: no type named 'mutex' in namespace 'std'
4409 | std::mutex free_men_mutex{};
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4452:22: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
4452 | std::unique_lock<std::mutex> pop_lock(free_men_mutex);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:4452:39: error: no member named 'mutex' in namespace 'std'
4452 | std::unique_lock<std::mutex> pop_lock(free_men_mutex);
| ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:4508:26: error: no template named 'unique_lock' in namespace 'std'; did you mean 'unique_copy'?
4508 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ~~~~~^~~~~~~~~~~
| unique_copy
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/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/c/lib.cpp:3:
In file included from /host/spi-builder-workspace/include/usearch/index_dense.hpp:8:
/host/spi-builder-workspace/include/usearch/index.hpp:4508:43: error: no member named 'mutex' in namespace 'std'
4508 | std::unique_lock<std::mutex> push_lock(free_men_mutex);
| ~~~~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[1/2] Compiling USearchC lib.cpp
BUILD FAILURE 6.1 wasm