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Build Information

Failed to build USearch, reference v2.26.6 (a985f7), with Swift 6.4 for Wasm on 27 Oct 2026 19:50:39 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886768-1":/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-6.4-latest swift build --swift-sdk swift-6.4.0-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/unum-cloud/usearch.git
Reference: v2.26.6
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               v2.26.6    -> FETCH_HEAD
HEAD is now at a985f77 Release: v2.26.6 [skip ci] ### Patch
Submodule path 'numkong': checked out '254198d3cc1e9fbbfc194484d20cc9767dd8a676'
Submodule path 'stringzilla': checked out '30d3e2129654d8269b3f66726414f9694c834e25'
Submodule 'numkong' (https://github.com/ashvardanian/NumKong) registered for path 'numkong'
Submodule 'stringzilla' (https://github.com/ashvardanian/stringzilla) registered for path 'stringzilla'
Cloning into '/host/spi-builder-workspace/numkong'...
Cloning into '/host/spi-builder-workspace/stringzilla'...
Cloned https://github.com/unum-cloud/usearch.git
Revision (git rev-parse @):
a985f77553d2d58d5ef1516eafaae81480bb3c30
SUCCESS checkout https://github.com/unum-cloud/usearch.git at v2.26.6
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/unum-cloud/usearch.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886768-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:0ad19d16955074ecc72bbe910025b19c4e4614184c1a48afc82660d4c7620121
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/ashvardanian/NumKong
[1/37020] Fetching numkong
Fetched https://github.com/ashvardanian/NumKong (2.40s)
Computing version for https://github.com/ashvardanian/NumKong
Computed https://github.com/ashvardanian/NumKong at 7.8.6 (2.56s)
Creating working copy for https://github.com/ashvardanian/NumKong
Working copy of https://github.com/ashvardanian/NumKong resolved at 7.8.6
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/README.md
    /host/spi-builder-workspace/swift/USearchIndex+Sugar.swift
    /host/spi-builder-workspace/swift/USearchIndex.swift
    /host/spi-builder-workspace/swift/Util.swift
Building for debugging...
[Pre-planning 1 / 156]
[21 / 58]
[30 / 58] CNumKongDispatch
[34 / 58] CNumKongDispatch
[37 / 58] CNumKongDispatch
[40 / 58] CNumKongDispatch
[43 / 58] CNumKongDispatch
[45 / 58] CNumKongDispatch
[51 / 63] USearch
[52 / 63] CNumKongDispatch
[53 / 63] CNumKongDispatch
[54 / 63] USearch
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:85:
/root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-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/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:788:18: error: no member named 'this_thread' in namespace 'std'
  788 |             std::this_thread::yield();
      |             ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:1698:61: error: no member named 'thread' in namespace 'std'
 1698 |         : index_limits_t(n, (std::max<std::size_t>)(1, std::thread::hardware_concurrency())) {}
      |                                                        ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:2126:63: error: use of undeclared identifier 'PROT_READ'
 2126 |         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:2126:74: error: use of undeclared identifier 'MAP_SHARED'
 2126 |         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:2127:21: error: use of undeclared identifier 'MAP_FAILED'
 2127 |         if (file == MAP_FAILED) {
      |                     ^~~~~~~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:2151:9: error: use of undeclared identifier 'munmap'
 2151 |         munmap(ptr_, length_);
      |         ^~~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:2574:10: error: no type named 'mutex' in namespace 'std'
 2574 |     std::mutex global_mutex_{};
      |     ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:3256:31: error: no member named 'mutex' in namespace 'std'
 3256 |         std::unique_lock<std::mutex> new_level_lock(global_mutex_);
      |                               ^~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:3402:35: error: no member named 'mutex' in namespace 'std'
 3402 |             std::unique_lock<std::mutex> new_level_lock(global_mutex_);
      |                                   ^~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:4985:10: error: no type named 'mutex' in namespace 'std'
 4985 |     std::mutex free_men_mutex{};
      |     ~~~~~^
/host/spi-builder-workspace/include/usearch/index.hpp:5028:39: error: no member named 'mutex' in namespace 'std'
 5028 |                 std::unique_lock<std::mutex> pop_lock(free_men_mutex);
      |                                       ^~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:5084:43: error: no member named 'mutex' in namespace 'std'
 5084 |                     std::unique_lock<std::mutex> push_lock(free_men_mutex);
      |                                           ^~~~~
/host/spi-builder-workspace/include/usearch/index.hpp:5087:43: error: no member named 'mutex' in namespace 'std'
 5087 |                     std::unique_lock<std::mutex> push_lock(free_men_mutex);
      |                                           ^~~~~
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:12:
/host/spi-builder-workspace/include/usearch/index_plugins.hpp:1358:14: error: no type named 'thread' in namespace 'std'
 1358 |         std::thread native_;
      |         ~~~~~^
/host/spi-builder-workspace/include/usearch/index_plugins.hpp:1378:63: error: no member named 'thread' in namespace 'std'
 1378 |         : threads_count_(threads_count ? threads_count : std::thread::hardware_concurrency()) {}
      |                                                          ~~~~~^
/host/spi-builder-workspace/include/usearch/index_plugins.hpp:1631:48: error: use of undeclared identifier 'PROT_WRITE'
 1631 |         auto* result = mmap(NULL, count_bytes, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
      |                                                ^~~~~~~~~~
/host/spi-builder-workspace/include/usearch/index_plugins.hpp:1631:61: error: use of undeclared identifier 'PROT_READ'
 1631 |         auto* result = mmap(NULL, count_bytes, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
      |                                                             ^~~~~~~~~
/host/spi-builder-workspace/include/usearch/index_plugins.hpp:1631:72: error: use of undeclared identifier 'MAP_PRIVATE'
 1631 |         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.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/lib.o /host/spi-builder-workspace/c/lib.cpp normal wasm32 c++ com.apple.compilers.llvm.clang.1_0.compiler failed with a nonzero exit code. Command line:     cd /host

    Using response file: /host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp

    /usr/bin/clang -x c++ -target wasm32-unknown-wasip1 -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fcolor-diagnostics -Wno-trigraphs -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wno-shorten-64-to-32 -Wno-newline-eof -Wno-c++11-extensions -Wno-implicit-fallthrough -fstrict-aliasing -Wdeprecated-declarations -Winvalid-offsetof -Wno-sign-conversion -Wno-infinite-recursion -Wno-move -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-range-loop-analysis -Wno-semicolon-before-method-body --sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/lib.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/lib.dia -c /host/spi-builder-workspace/c/lib.cpp -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/USearch.build/Debug-webassembly-wasm32/USearchC-t.build/Objects-normal/wasm32/lib.o
error: Build failed
BUILD FAILURE 6.4 wasm