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Build Information

Failed to build async-http-client, reference main (8cfd30), with Swift 6.1 for Wasm on 2 Apr 2026 23:58:37 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-server/async-http-client.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/swift-server/async-http-client
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8cfd301 Update test certs (#901)
Cloned https://github.com/swift-server/async-http-client.git
Revision (git rev-parse @):
8cfd301b4163e7009c1b6a2b35feaf6812c2157a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-server/async-http-client.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/swift-server/async-http-client.git
https://github.com/swift-server/async-http-client.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
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  ],
  "manifest_display_name" : "async-http-client",
  "name" : "async-http-client",
  "path" : "/host/spi-builder-workspace",
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  "products" : [
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  "targets" : [
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      "sources" : [
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        "InMemoryLogging",
        "Tracing",
        "ServiceContextModule",
        "InMemoryTracing"
      ],
      "resources" : [
        {
          "path" : "/host/spi-builder-workspace/Tests/AsyncHTTPClientTests/Resources/example.com.cert.pem",
          "rule" : {
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          "rule" : {
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          "rule" : {
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        {
          "path" : "/host/spi-builder-workspace/Tests/AsyncHTTPClientTests/Resources/self_signed_key.pem",
          "rule" : {
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      "sources" : [
        "AsyncAwaitEndToEndTests.swift",
        "AsyncTestHelpers.swift",
        "BidirectionalStreamingTests.swift",
        "ConnectionPoolSizeConfigValueIsRespectedTests.swift",
        "EmbeddedChannel+HTTPConvenience.swift",
        "FoundationExtensionTests.swift",
        "HTTP1ClientChannelHandlerTests.swift",
        "HTTP1ConnectionStateMachineTests.swift",
        "HTTP1ConnectionTests.swift",
        "HTTP1ProxyConnectHandlerTests.swift",
        "HTTP2ClientRequestHandlerTests.swift",
        "HTTP2ClientTests.swift",
        "HTTP2ConnectionTests.swift",
        "HTTP2IdleHandlerTests.swift",
        "HTTPClient+SOCKSTests.swift",
        "HTTPClient+StructuredConcurrencyTests.swift",
        "HTTPClientBase.swift",
        "HTTPClientCookieTests.swift",
        "HTTPClientInformationalResponsesTests.swift",
        "HTTPClientInternalTests.swift",
        "HTTPClientNIOTSTests.swift",
        "HTTPClientRequestTests.swift",
        "HTTPClientResponseTests.swift",
        "HTTPClientTestUtils.swift",
        "HTTPClientTests.swift",
        "HTTPClientTracingInternalTests.swift",
        "HTTPClientTracingTests.swift",
        "HTTPClientUncleanSSLConnectionShutdownTests.swift",
        "HTTPConnectionPool+FactoryTests.swift",
        "HTTPConnectionPool+HTTP1ConnectionsTest.swift",
        "HTTPConnectionPool+HTTP1StateTests.swift",
        "HTTPConnectionPool+HTTP2ConnectionsTest.swift",
        "HTTPConnectionPool+HTTP2StateMachineTests.swift",
        "HTTPConnectionPool+ManagerTests.swift",
        "HTTPConnectionPool+RequestQueueTests.swift",
        "HTTPConnectionPool+StateTestUtils.swift",
        "HTTPConnectionPoolTests.swift",
        "HTTPRequestStateMachineTests.swift",
        "IdleTimeoutNoReuseTests.swift",
        "LRUCacheTests.swift",
        "LocalAddressOverrideTests.swift",
        "Mocks/MockConnectionPool.swift",
        "Mocks/MockHTTPExecutableRequest.swift",
        "Mocks/MockRequestExecutor.swift",
        "Mocks/MockRequestQueuer.swift",
        "NWWaitingHandlerTests.swift",
        "NoBytesSentOverBodyLimitTests.swift",
        "RacePoolIdleConnectionsAndGetTests.swift",
        "RequestBagTests.swift",
        "RequestValidationTests.swift",
        "ResponseDelayGetTests.swift",
        "SOCKSEventsHandlerTests.swift",
        "SOCKSTestUtils.swift",
        "SSLContextCacheTests.swift",
        "StressGetHttpsTests.swift",
        "SwiftConfigurationTests.swift",
        "TLSEventsHandlerTests.swift",
        "Transaction+StateMachineTests.swift",
        "TransactionTests.swift",
        "XCTest+AsyncAwait.swift"
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        "AsyncHTTPClient"
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        "NIOSOCKS",
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      "product_memberships" : [
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        "AsyncAwait/AnyAsyncSequenceProucerDelete.swift",
        "AsyncAwait/AsyncLazySequence.swift",
        "AsyncAwait/HTTPClient+execute.swift",
        "AsyncAwait/HTTPClient+shutdown.swift",
        "AsyncAwait/HTTPClient+tracing.swift",
        "AsyncAwait/HTTPClientRequest+Prepared.swift",
        "AsyncAwait/HTTPClientRequest+auth.swift",
        "AsyncAwait/HTTPClientRequest.swift",
        "AsyncAwait/HTTPClientResponse.swift",
        "AsyncAwait/SingleIteratorPrecondition.swift",
        "AsyncAwait/Transaction+StateMachine.swift",
        "AsyncAwait/Transaction.swift",
        "Base64.swift",
        "BasicAuth.swift",
        "BestEffortHashableTLSConfiguration.swift",
        "Configuration+BrowserLike.swift",
        "ConnectionPool.swift",
        "ConnectionPool/ChannelHandler/HTTP1ProxyConnectHandler.swift",
        "ConnectionPool/ChannelHandler/SOCKSEventsHandler.swift",
        "ConnectionPool/ChannelHandler/TLSEventsHandler.swift",
        "ConnectionPool/HTTP1/HTTP1ClientChannelHandler.swift",
        "ConnectionPool/HTTP1/HTTP1Connection.swift",
        "ConnectionPool/HTTP1/HTTP1ConnectionStateMachine.swift",
        "ConnectionPool/HTTP2/HTTP2ClientRequestHandler.swift",
        "ConnectionPool/HTTP2/HTTP2Connection.swift",
        "ConnectionPool/HTTP2/HTTP2IdleHandler.swift",
        "ConnectionPool/HTTPConnectionEvent.swift",
        "ConnectionPool/HTTPConnectionPool+Factory.swift",
        "ConnectionPool/HTTPConnectionPool+Manager.swift",
        "ConnectionPool/HTTPConnectionPool.swift",
        "ConnectionPool/HTTPExecutableRequest.swift",
        "ConnectionPool/HTTPRequestStateMachine+Demand.swift",
        "ConnectionPool/HTTPRequestStateMachine.swift",
        "ConnectionPool/RequestBodyLength.swift",
        "ConnectionPool/RequestFramingMetadata.swift",
        "ConnectionPool/RequestOptions.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+Backoff.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+HTTP1Connections.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+HTTP1StateMachine.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+HTTP2Connections.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+HTTP2StateMachine.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+RequestQueue.swift",
        "ConnectionPool/State Machine/HTTPConnectionPool+StateMachine.swift",
        "ConnectionTarget.swift",
        "DeconstructedURL.swift",
        "FileDownloadDelegate.swift",
        "FoundationExtensions.swift",
        "HTTPClient+HTTPCookie.swift",
        "HTTPClient+Proxy.swift",
        "HTTPClient+StructuredConcurrency.swift",
        "HTTPClient.swift",
        "HTTPClientConfiguration+SwiftConfiguration.swift",
        "HTTPHandler.swift",
        "LRUCache.swift",
        "NIOLoopBound+Execute.swift",
        "NIOTransportServices/NWErrorHandler.swift",
        "NIOTransportServices/NWWaitingHandler.swift",
        "NIOTransportServices/TLSConfiguration.swift",
        "RedirectState.swift",
        "RequestBag+StateMachine.swift",
        "RequestBag+Tracing.swift",
        "RequestBag.swift",
        "RequestValidation.swift",
        "SSLContextCache.swift",
        "Scheme.swift",
        "Singleton.swift",
        "StringConvertibleInstances.swift",
        "StructuredConcurrencyHelpers.swift",
        "TracingSupport.swift",
        "Utils.swift"
      ],
      "target_dependencies" : [
        "CAsyncHTTPClient"
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      "type" : "library"
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  "tools_version" : "6.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:c3bd0c8eb125dea46564a1eb8b09ee779ba7ae350b1ee58b5e9d6ff6c39cef37
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
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Creating working copy for https://github.com/apple/swift-http-structured-headers.git
Working copy of https://github.com/apple/swift-http-structured-headers.git resolved at 1.6.0
Creating working copy for https://github.com/apple/swift-nio-http2.git
Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.42.0
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
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 2.36.1
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.11.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.3.1
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.97.1
Creating working copy for https://github.com/apple/swift-certificates.git
Working copy of https://github.com/apple/swift-certificates.git resolved at 1.18.0
Creating working copy for https://github.com/apple/swift-http-types.git
Working copy of https://github.com/apple/swift-http-types.git resolved at 1.5.1
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.6.0
Creating working copy for https://github.com/apple/swift-nio-transport-services.git
Working copy of https://github.com/apple/swift-nio-transport-services.git resolved at 1.26.0
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 2.11.0
Creating working copy for https://github.com/apple/swift-nio-extras.git
Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.33.0
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Building for debugging...
[0/453] Write sources
[26/453] Compiling _NumericsShims _NumericsShims.c
/host/spi-builder-workspace/Sources/CAsyncHTTPClient/CAsyncHTTPClient.c:37:38: error: call to undeclared function 'strptime_l'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   37 |     const char * firstNonProcessed = strptime_l(string, format, result, (locale_t)locale);
      |                                      ^
/host/spi-builder-workspace/Sources/CAsyncHTTPClient/CAsyncHTTPClient.c:37:38: note: did you mean 'strftime_l'?
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/time.h:93:8: note: 'strftime_l' declared here
   93 | size_t strftime_l (char *  __restrict, size_t, const char *  __restrict, const struct tm *  __restrict, locale_t);
      |        ^
/host/spi-builder-workspace/Sources/CAsyncHTTPClient/CAsyncHTTPClient.c:37:18: error: incompatible integer to pointer conversion initializing 'const char *' with an expression of type 'int' [-Wint-conversion]
   37 |     const char * firstNonProcessed = strptime_l(string, format, result, (locale_t)locale);
      |                  ^                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.
[27/453] Compiling CAsyncHTTPClient CAsyncHTTPClient.c
[27/453] Compiling CNIOPosix event_loop_id.c
[27/453] Compiling _AtomicsShims.c
[27/453] Compiling _CWASI _CWASI.c
[27/453] Compiling CNIOWindows WSAStartup.c
[27/453] Compiling CNIOWASI CNIOWASI.c
[27/453] Compiling CNIOWindows shim.c
[27/453] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:c3bd0c8eb125dea46564a1eb8b09ee779ba7ae350b1ee58b5e9d6ff6c39cef37
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
[0/426] Compiling _AtomicsShims.c
[1/426] Compiling CNIOWASI CNIOWASI.c
[2/426] Compiling CNIOWindows WSAStartup.c
[3/426] Compiling CNIOWindows shim.c
[4/426] Compiling CNIOPosix event_loop_id.c
[5/426] Compiling CNIOOpenBSD shim.c
[6/426] Compiling CNIOLinux shim.c
[6/426] Compiling CNIOLinux liburing_shims.c
[8/426] Compiling CNIOLLHTTP c_nio_http.c
[9/426] Compiling CNIOExtrasZlib inftrees.c
[10/426] Compiling CNIOExtrasZlib zutil.c
[11/426] Compiling CNIOLLHTTP c_nio_api.c
[12/426] Compiling CNIOExtrasZlib inffast.c
[13/426] Compiling CNIOExtrasZlib inflate.c
[14/426] Compiling CNIODarwin shim.c
[15/426] Compiling CNIOExtrasZlib trees.c
[16/426] Compiling CNIOExtrasZlib crc32.c
[17/426] Compiling CNIOExtrasZlib adler32.c
[18/426] Compiling fiat_p256_adx_sqr.S
[19/426] Compiling fiat_p256_adx_mul.S
[20/426] Write swift-version-24593BA9C3E375BF.txt
[21/426] Compiling _CWASI _CWASI.c
[22/426] Compiling fiat_curve25519_adx_square.S
[23/426] Compiling fiat_curve25519_adx_mul.S
[24/426] Compiling CNIOExtrasZlib deflate.c
[25/446] Compiling CNIOBoringSSLShims shims.c
[27/452] Emitting module _NIODataStructures
[28/452] Emitting module Logging
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls_record.cc:19:
/host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/../crypto/internal.h:32:10: fatal error: 'pthread.h' file not found
   32 | #include <pthread.h>
      |          ^~~~~~~~~~~
1 error generated.
[28/452] Compiling tls_record.cc
[28/452] Compiling CNIOLLHTTP c_nio_llhttp.c
[29/452] Emitting module _NIOBase64
[29/452] Compiling tls_method.cc
BUILD FAILURE 6.1 wasm