XGrammar – Build Information – Swift Package Index

Build Information

Failed to build XGrammar, reference main (e0f2de), with Swift 6.4 for Wasm on 24 Sep 2026 17:19:20 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mattt/swift-xgrammar.git
Reference: main
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/mattt/swift-xgrammar
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e0f2de3 Add CI workflow (#1)
Cloned https://github.com/mattt/swift-xgrammar.git
Revision (git rev-parse @):
e0f2de361aa4891dbca5113629bc90ab8e5c3888
SUCCESS checkout https://github.com/mattt/swift-xgrammar.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/mattt/swift-xgrammar.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$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.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Constructing description]
[Planning deferred tasks]
[27 / 46] Cxgrammar
[29 / 46] Cxgrammar
[30 / 46] Cxgrammar
[32 / 46] Cxgrammar
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:27:
[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:71:46: [0m[0;1;31merror: [0m[1mno template named 'shared_future' in namespace 'std'; did you mean 'shared_ptr'?[0m
   71 |   [0;34mauto[0m Submit(F&& f, Args&&... args) -> std::shared_future<std::invoke_result_t<F, Args...>> {[0m
      | [0;1;32m                                        ~~~~~^~~~~~~~~~~~~
[0m      | [0;32m                                             shared_ptr
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/matcher.h:11:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/compiler.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/grammar.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/object.h:10:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/memory:950:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__memory/inout_ptr.h:16:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__memory/shared_ptr.h:307:38: [0m[0;1;36mnote: [0m'shared_ptr' declared here[0m
  307 | [0;34mclass[0m _LIBCPP_SHARED_PTR_TRIVIAL_ABI shared_ptr {[0m
      | [0;1;32m                                     ^
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:27:
[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:160:20: [0m[0;1;31merror: [0m[1mno member named 'thread' in namespace 'std'; did you mean 'fread'?[0m
  160 |   std::vector<std::thread> workers_;[0m
      | [0;1;32m                   ^~~~~~
[0m      | [0;32m                   fread
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/matcher.h:11:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/compiler.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/grammar.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/object.h:10:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/memory:998:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/iterator:693:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__iterator/istreambuf_iterator.h:19:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__string/char_traits.h:29:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/cstdio:144:9: [0m[0;1;36mnote: [0m'fread' declared here[0m
  144 | [0;34musing[0m ::fread _LIBCPP_USING_IF_EXISTS;[0m
      | [0;1;32m        ^
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:27:
[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:160:15: [0m[0;1;31merror: [0m[1mtemplate argument for template type parameter must be a type[0m
  160 |   std::vector<std::thread> workers_;[0m
      | [0;1;32m              ^~~~~~~~~~~
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/matcher.h:11:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/compiler.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/grammar.h:16:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/vector:314:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__vector/vector.h:87:17: [0m[0;1;36mnote: [0mtemplate parameter is declared here[0m
   87 | [0;34mtemplate[0m <[0;34mclass[0m _Tp, [0;34mclass[0m _Allocator [0;33m/* = allocator<_Tp> */[0m>[0m
      | [0;1;32m                ^
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:27:
[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:164:8: [0m[0;1;31merror: [0m[1mno type named 'mutex' in namespace 'std'[0m
  164 |   std::mutex queue_mutex_;[0m
      | [0;1;32m  ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:166:8: [0m[0;1;31merror: [0m[1mno type named 'condition_variable' in namespace 'std'[0m
  166 |   std::condition_variable queue_condition_;[0m
      | [0;1;32m  ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:168:8: [0m[0;1;31merror: [0m[1mno type named 'condition_variable' in namespace 'std'[0m
  168 |   std::condition_variable tasks_done_condition_;[0m
      | [0;1;32m  ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:36:40: [0m[0;1;31merror: [0m[1mno member named 'thread' in namespace 'std'[0m
   36 |   ThreadPool(size_t num_threads = std::thread::hardware_concurrency()) {[0m
      | [0;1;32m                                  ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:44:35: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
   44 |             std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                                  ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:75:39: [0m[0;1;31merror: [0m[1mno member named 'packaged_task' in namespace 'std'[0m
   75 |     [0;34mauto[0m task = std::make_shared<std::packaged_task<return_type()>>([0m
      | [0;1;32m                                      ^~~~~~~~~~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:79:10: [0m[0;1;31merror: [0m[1mno template named 'shared_future' in namespace 'std'; did you mean 'shared_ptr'?[0m
   79 |     std::shared_future<return_type> res = task->get_future().share();[0m
      | [0;1;32m    ~~~~~^~~~~~~~~~~~~
[0m      | [0;32m         shared_ptr
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/matcher.h:11:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/compiler.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/grammar.h:10:
In file included from /host/spi-builder-workspace/Sources/Cxgrammar/include/xgrammar/object.h:10:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/memory:950:
In file included from /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__memory/inout_ptr.h:16:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk/include/c++/v1/__memory/shared_ptr.h:307:38: [0m[0;1;36mnote: [0m'shared_ptr' declared here[0m
  307 | [0;34mclass[0m _LIBCPP_SHARED_PTR_TRIVIAL_ABI shared_ptr {[0m
      | [0;1;32m                                     ^
[0mIn file included from /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:27:
[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:82:29: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
   82 |       std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                            ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:104:29: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
  104 |       std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                            ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:115:27: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
  115 |     std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                          ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:128:29: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
  128 |       std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                            ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:134:15: [0m[0;1;31merror: [0m[1mno type named 'thread' in namespace 'std'[0m
  134 |     [0;34mfor[0m (std::thread& worker : workers_) {[0m
      | [0;1;32m         ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/support/thread_pool.h:152:27: [0m[0;1;31merror: [0m[1mno member named 'mutex' in namespace 'std'[0m
  152 |     std::unique_lock<std::mutex> lock(queue_mutex_);[0m
      | [0;1;32m                          ^~~~~
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:430:53: [0m[0;1;31merror: [0m[1mno member named 'thread' in namespace 'std'[0m
  430 |         [0;34mif[0m (num_threads > [0;34mstatic_cast[0m<int32_t>(std::thread::hardware_concurrency())) {[0m
      | [0;1;32m                                               ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:433:62: [0m[0;1;31merror: [0m[1mno member named 'thread' in namespace 'std'[0m
  433 |                                 << [0;34mstatic_cast[0m<int32_t>(std::thread::hardware_concurrency())[0m
      | [0;1;32m                                                        ~~~~~^
[0m[1m/host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc:437:61: [0m[0;1;31merror: [0m[1mno member named 'thread' in namespace 'std'[0m
  437 |             std::min(num_threads, [0;34mstatic_cast[0m<int32_t>(std::thread::hardware_concurrency()));[0m
      | [0;1;32m                                                       ~~~~~^
[0m[0;1;31mfatal error: [0m[1mtoo many errors emitted, stopping now [-ferror-limit=][0m
20 errors generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-t.build/Objects-normal/wasm32/grammar_matcher.o /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc 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/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-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.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-t.build/Objects-normal/wasm32/grammar_matcher.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-t.build/Objects-normal/wasm32/grammar_matcher.dia -c /host/spi-builder-workspace/Sources/Cxgrammar/cpp/grammar_matcher.cc -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/XGrammar.build/Debug-webassembly-wasm32/Cxgrammar-t.build/Objects-normal/wasm32/grammar_matcher.o
error: Build failed
BUILD FAILURE 6.4 wasm