SwiftProtobuf – Build Information

Build Information

Failed to build SwiftProtobuf, reference 1.39.0 (3d537c), with Swift 6.4 for Wasm on 14 Oct 2026 08:17:32 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-2":/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: 5.1.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-protobuf.git
Reference: 1.39.0
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/apple/swift-protobuf
 * tag               1.39.0     -> FETCH_HEAD
HEAD is now at 3d537cb Version bump to prep for a release. (#2185)
Cloned https://github.com/apple/swift-protobuf.git
Revision (git rev-parse @):
3d537cb81aef272a03cb3be815439e9bf0eb3bd3
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-protobuf.git at 1.39.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/apple/swift-protobuf.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-2":/host -w "$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:d8610b27563fbed4643ddaec8e9397319e3b3e1372fc54686db2dacb952c1b8f
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 298]
[Planning deferred tasks]
[Constructing 847 / 861]
[15 / 374] SwiftProtobuf_SwiftProtobuf
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[69 / 374] protoc-product
In file included from /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/message/unknown_fields.c:8:
In file included from /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/message/unknown_fields.h:14:
In file included from /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/mem/internal/arena.h:15:
In file included from /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/port/sanitizers.h:16:
In file included from /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/port/def.inc:104:
[1m/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/setjmp.h:13:2: [0m[0;1;31merror: [0m[1mSetjmp/longjmp support requires Exception handling support, which is [not yet standardized](https://github.com/WebAssembly/proposals?tab=readme-ov-file#phase-3---implementation-phase-cg--wg). To enable it, compile with `-mllvm -wasm-enable-sjlj` and use an engine that implements the Exception handling proposal.[0m
   13 | #error Setjmp/longjmp support requires Exception handling support, which is [not yet standardized](https:[0;33m//github.com/WebAssembly/proposals?tab=readme-ov-file#phase-3---implementation-phase-cg--wg). To enable it, compile with `-mllvm -wasm-enable-sjlj` and use an engine that implements the Exception handling proposal.[0m
      | [0;1;32m ^
[0m1 error generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/unknown_fields.o /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/message/unknown_fields.c 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/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-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-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 -Wpointer-sign -Wno-newline-eof -Wno-implicit-fallthrough -fstrict-aliasing -Wdeprecated-declarations -Wno-sign-conversion -Wno-infinite-recursion -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -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 -Wno-conversion -Wno-deprecated-declarations @/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/unknown_fields.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/unknown_fields.dia -c /host/spi-builder-workspace/Sources/protobuf/protobuf/upb/message/unknown_fields.c -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftProtobuf.build/Debug-webassembly-wasm32/protoc-p.build/Objects-normal/wasm32/unknown_fields.o
[70 / 374] protoc-product
error: Build failed
BUILD FAILURE 6.4 wasm