Swift Package Index

Build Information

Failed to build modbus-swift, reference main (713015), with Swift 6.4 for Wasm on 23 Sep 2026 14:37:10 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/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/3a4oT/modbus-swift.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/3a4oT/modbus-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7130151 feat(ModbusCore): add 64-bit register decoding
Cloned https://github.com/3a4oT/modbus-swift.git
Revision (git rev-parse @):
7130151da9f7e4c20291995a8b18f6452713d465
SUCCESS checkout https://github.com/3a4oT/modbus-swift.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/3a4oT/modbus-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$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
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-nio-ssl.git
Fetching https://github.com/apple/swift-metrics.git
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/apple/swift-nio.git
[1/8164] Fetching swift-log
[165/24229] Fetching swift-log, swift-nio-ssl
[247/27072] Fetching swift-log, swift-nio-ssl, swift-service-lifecycle
[3320/30588] Fetching swift-log, swift-nio-ssl, swift-service-lifecycle, swift-metrics
Fetched https://github.com/swift-server/swift-service-lifecycle.git (0.56s)
Fetched https://github.com/apple/swift-metrics.git (0.56s)
[9771/24229] Fetching swift-log, swift-nio-ssl
[24230/110294] Fetching swift-log, swift-nio-ssl, swift-nio
Fetched https://github.com/apple/swift-log.git (1.05s)
Fetched https://github.com/apple/swift-nio-ssl.git (1.05s)
[861/86065] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git (2.94s)
Computing version for https://github.com/swift-server/swift-service-lifecycle.git
Computed https://github.com/swift-server/swift-service-lifecycle.git at 2.12.0 (3.12s)
Fetching https://github.com/apple/swift-async-algorithms.git
[1/6732] Fetching swift-async-algorithms
Fetched https://github.com/apple/swift-async-algorithms.git (0.56s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.76s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.5 (0.20s)
Fetching https://github.com/apple/swift-collections.git
[1/27693] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git (1.22s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.7.0 (1.51s)
Computing version for https://github.com/apple/swift-metrics.git
Computed https://github.com/apple/swift-metrics.git at 2.11.0 (0.17s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 2.37.5 (0.22s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.32s)
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-system.git
[1/6916] Fetching swift-system
[6917/8791] Fetching swift-system, swift-atomics
Fetched https://github.com/apple/swift-atomics.git (1.56s)
Fetched https://github.com/apple/swift-system.git (1.57s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (1.75s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.8.1 (0.20s)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.7.0
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.37.5
Creating working copy for https://github.com/apple/swift-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.5
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.8.1
Creating working copy for https://github.com/apple/swift-metrics.git
Working copy of https://github.com/apple/swift-metrics.git resolved at 2.11.0
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
Creating working copy for https://github.com/swift-server/swift-service-lifecycle.git
Working copy of https://github.com/swift-server/swift-service-lifecycle.git resolved at 2.12.0
Building for debugging...
[Computing dependencies]
[Provisioning 3 / 52]
[Pre-planning 1 / 1134]
[Planning deferred tasks]
[Starting]
[89 / 756] ModbusKit
[179 / 800] InternalCollectionsUtilities
[180 / 808] ModbusCore
[180 / 808] _NIODataStructures
[193 / 808] NIOConcurrencyHelpers
[204 / 808] NIOConcurrencyHelpers
[204 / 808] InternalCollectionsUtilities
[215 / 808] NIOConcurrencyHelpers-product
[216 / 808] _NIODataStructures
[224 / 808] ModbusCore
[227 / 809] _NIODataStructures
[235 / 810] _NIODataStructures
[239 / 811] NIOConcurrencyHelpers
[242 / 811] Logging
[244 / 811] Logging-product
[245 / 811] Logging-product
[249 / 811] InternalCollectionsUtilities
[251 / 811] InternalCollectionsUtilities
[252 / 811] SpanPreview
[257 / 812] Metrics
[262 / 812]
[277 / 832] SpanPreview
[286 / 833] SpanPreview
[289 / 833] ConcurrencyHelpers
[296 / 834] Atomics
[303 / 834] CNIOPosix
[317 / 834] CNIODarwin
[320 / 834] CNIOBoringSSL
[321 / 835] CoreMetrics
[323 / 836] CNIOBoringSSL
[324 / 836] CNIOBoringSSL
[327 / 836] CNIOBoringSSL
[329 / 836] CNIOBoringSSL
[333 / 836] Atomics
[346 / 836] CNIOBoringSSL
[346 / 836] Atomics
[347 / 837] CNIOBoringSSL
[348 / 837] CNIOBoringSSL
[354 / 837] CNIOBoringSSL
[355 / 837] CNIOBoringSSL
[356 / 837] CNIOBoringSSL
[362 / 837] CNIOBoringSSL
[364 / 837] CNIOBoringSSL
[370 / 837] CNIOBoringSSL
[373 / 837] CNIOBoringSSL
[375 / 837] CNIOBoringSSL
[377 / 837] CNIOBoringSSL
[380 / 837] CNIOBoringSSL
[383 / 837] CNIOBoringSSL
[385 / 837] CNIOBoringSSL
[388 / 837] CNIOBoringSSL
[390 / 837] CNIOBoringSSL
[394 / 837] CNIOBoringSSL
[398 / 837] CNIOBoringSSL
[402 / 837] CNIOBoringSSL
[403 / 837] CNIOBoringSSL
[406 / 837] CNIOBoringSSL
[408 / 837] CNIOBoringSSL
[410 / 837] CNIOBoringSSL
[416 / 837] CNIOBoringSSL
[418 / 837] CNIOBoringSSL
[420 / 837] CNIOBoringSSL
[422 / 837] CNIOBoringSSL
[424 / 837] CNIOBoringSSL
[427 / 837] CNIOBoringSSL
[428 / 837] CNIOBoringSSL
[429 / 837] CNIOBoringSSL
[431 / 837] CNIOBoringSSL
[432 / 837] CNIOBoringSSL
[435 / 837] CNIOBoringSSL
[436 / 837] CNIOBoringSSL
[439 / 837] CNIOBoringSSL
[440 / 837] CNIOBoringSSL
[443 / 837] CNIOBoringSSL
/host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/crypto/bio/socket_helper.cc:30:10: fatal error: 'netdb.h' file not found
   30 | #include <netdb.h>
      |          ^~~~~~~~~
1 error generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-t.build/Objects-normal/wasm32/socket_helper.o /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/crypto/bio/socket_helper.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/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-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 -w -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/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-t.build/Objects-normal/wasm32/11b881b950eb02e21769317df93e9b41d1d7f0348e4e0901ae810dce93ca1a57-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-t.build/Objects-normal/wasm32/socket_helper.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-t.build/Objects-normal/wasm32/socket_helper.dia -c /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/crypto/bio/socket_helper.cc -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-nio-ssl.build/Debug-webassembly-wasm32/CNIOBoringSSL-t.build/Objects-normal/wasm32/socket_helper.o
error: Build failed
BUILD FAILURE 6.4 wasm