Yams – Build Information – Swift Package Index

Build Information

Failed to build Yams, reference 4.0.1 (138cf1), with Swift 6.4 for Wasm on 23 Sep 2026 22:07:13 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/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/foscomputerservices/Yams.git
Reference: 4.0.1
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/foscomputerservices/Yams
 * tag               4.0.1      -> FETCH_HEAD
HEAD is now at 138cf1b Release 4.0.1
Cloned https://github.com/foscomputerservices/Yams.git
Revision (git rev-parse @):
138cf1b701cf825233b92ceac919152d5aba8a3f
SUCCESS checkout https://github.com/foscomputerservices/Yams.git at 4.0.1
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/foscomputerservices/Yams.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/host -w "$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...
[Planning deferred tasks]
[30 / 43] Yams
[35 / 43] Yams
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/CoreFoundation.h:28:10: [1;39mnote: [1;39mwhile building module 'wasi_emulated_signal' imported 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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/CoreFoundation.h:28:[0;0m
 [0;36m26 |[0;0m #include <setjmp.h>
 [0;36m27 |[0;0m #endif
 [0;36m28 |[0;0m #include <signal.h>
    [0;36m|[0;0m          `- [1;39mnote: [1;39mwhile building module 'wasi_emulated_signal' imported 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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/CoreFoundation.h:28:[0;0m
 [0;36m29 |[0;0m #include <stddef.h>
 [0;36m30 |[0;0m #include <stdio.h>
<module-includes>:1:10: [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m1 |[0;0m #include "signal.h"
  [0;36m|[0;0m          `- [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m2 |[0;0m
/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/wasm32-wasip1/signal.h:2:2: [1;31merror: [1;39m"wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"[0;0m
  [0;36m1 |[0;0m #ifndef _WASI_EMULATED_SIGNAL
  [0;36m2 |[0;0m #error "wasm lacks signal support; to enable minimal signal emulation, \
    [0;36m|[0;0m  `- [1;31merror: [1;39m"wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"[0;0m
  [0;36m3 |[0;0m compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"
  [0;36m4 |[0;0m #else
<module-includes>:1:10: [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m1 |[0;0m #include "CoreFoundation.h"
  [0;36m|[0;0m          `- [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m2 |[0;0m
/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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/CoreFoundation.h:28:10: [1;31merror: [1;39mcould not build module 'wasi_emulated_signal'[0;0m
 [0;36m26 |[0;0m #include <setjmp.h>
 [0;36m27 |[0;0m #endif
 [0;36m28 |[0;0m #include <signal.h>
    [0;36m|[0;0m          `- [1;31merror: [1;39mcould not build module 'wasi_emulated_signal'[0;0m
 [0;36m29 |[0;0m #include <stddef.h>
 [0;36m30 |[0;0m #include <stdio.h>
/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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/ForSwiftFoundationOnly.h:86:10: [1;39mnote: [1;39mwhile building module 'wasi_emulated_mman' imported 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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/ForSwiftFoundationOnly.h:86:[0;0m
 [0;36m84 |[0;0m #undef _WASI_EMULATED_MMAN
 [0;36m85 |[0;0m #define _WASI_EMULATED_MMAN
 [0;36m86 |[0;0m #include <sys/mman.h>
    [0;36m|[0;0m          `- [1;39mnote: [1;39mwhile building module 'wasi_emulated_mman' imported 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/swift.xctoolchain/usr/lib/swift_static/CoreFoundation/ForSwiftFoundationOnly.h:86:[0;0m
 [0;36m87 |[0;0m #elif TARGET_OS_LINUX
 [0;36m88 |[0;0m #include <errno.h>
<module-includes>:1:10: [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m1 |[0;0m #include "sys/mman.h"
  [0;36m|[0;0m          `- [1;39mnote: [1;39min file included from <module-includes>:1:[0;0m
[0;36m2 |[0;0m
/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/wasm32-wasip1/sys/mman.h:2:2: [1;31merror: [1;39m"WASI lacks a true mmap; to enable minimal mmap emulation, compile with -D_WASI_EMULATED_MMAN and link with -lwasi-emulated-mman"[0;0m
  [0;36m1 |[0;0m #ifndef _WASI_EMULATED_MMAN
  [0;36m2 |[0;0m #error "WASI lacks a true mmap; to enable minimal mmap emulation, \
    [0;36m|[0;0m  `- [1;31merror: [1;39m"WASI lacks a true mmap; to enable minimal mmap emulation, compile with -D_WASI_EMULATED_MMAN and link with -lwasi-emulated-mman"[0;0m
  [0;36m3 |[0;0m compile with -D_WASI_EMULATED_MMAN and link with -lwasi-emulated-mman"
  [0;36m4 |[0;0m #else
/host/spi-builder-workspace/Sources/Yams/Representer.swift:18:8: [1;31merror: [1;39mcould not build C module 'CoreFoundation'[0;0m
 [0;36m16 |[0;0m private let cpow: (_: Double, _: Double) -> Double = ucrt.pow
 [0;36m17 |[0;0m #else
 [0;36m18 |[0;0m import CoreFoundation
    [0;36m|[0;0m        `- [1;31merror: [1;39mcould not build C module 'CoreFoundation'[0;0m
 [0;36m19 |[0;0m import Glibc
 [0;36m20 |[0;0m private let cpow: (_: Double, _: Double) -> Double = Glibc.pow
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Yams/Constructor.swift /host/spi-builder-workspace/Sources/Yams/Decoder.swift /host/spi-builder-workspace/Sources/Yams/Emitter.swift /host/spi-builder-workspace/Sources/Yams/Encoder.swift /host/spi-builder-workspace/Sources/Yams/Mark.swift /host/spi-builder-workspace/Sources/Yams/Node.Mapping.swift /host/spi-builder-workspace/Sources/Yams/Node.Scalar.swift /host/spi-builder-workspace/Sources/Yams/Node.Sequence.swift /host/spi-builder-workspace/Sources/Yams/Node.swift /host/spi-builder-workspace/Sources/Yams/Parser.swift /host/spi-builder-workspace/Sources/Yams/Representer.swift /host/spi-builder-workspace/Sources/Yams/Resolver.swift /host/spi-builder-workspace/Sources/Yams/String+Yams.swift /host/spi-builder-workspace/Sources/Yams/Tag.swift /host/spi-builder-workspace/Sources/Yams/YamlError.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /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 -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 -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /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/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /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/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -fmodule-map-file\=/host/spi-builder-workspace/Sources/CYaml/include/module.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/Sources/CYaml/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Yams -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Yams_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Modules/Yams.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Modules/Yams.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Yams-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Yams-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Yams-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Yams.build/Debug-webassembly-wasm32/Yams-t.build/Objects-normal/wasm32/Modules/Yams.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm