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Build Information

Failed to build swift-websocket, reference main (2c5a21), with Swift 6.1 for Wasm on 1 May 2026 13:28:38 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hummingbird-project/swift-websocket.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/hummingbird-project/swift-websocket
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2c5a217 Add .spi.yml
Cloned https://github.com/hummingbird-project/swift-websocket.git
Revision (git rev-parse @):
2c5a2171a45ed511f9381ed979c9185bb433a6cb
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/hummingbird-project/swift-websocket.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/hummingbird-project/swift-websocket.git
https://github.com/hummingbird-project/swift-websocket.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$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: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Fetching https://github.com/apple/swift-nio-extras.git
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/swift-server/swift-service-lifecycle
Fetching https://github.com/adam-fowler/compress-nio.git
Fetching https://github.com/apple/swift-nio-ssl.git
Fetching https://github.com/apple/swift-nio-transport-services.git
[1/643] Fetching compress-nio
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[1497/6241] Fetching compress-nio, swift-service-lifecycle, swift-nio-transport-services
[2417/12759] Fetching compress-nio, swift-service-lifecycle, swift-nio-transport-services, swift-nio-extras
[6794/28199] Fetching compress-nio, swift-service-lifecycle, swift-nio-transport-services, swift-nio-extras, swift-nio-ssl
[11976/111429] Fetching compress-nio, swift-service-lifecycle, swift-nio-transport-services, swift-nio-extras, swift-nio-ssl, swift-nio
Fetched https://github.com/apple/swift-nio-transport-services.git from cache (1.64s)
Fetching https://github.com/apple/swift-log.git
[14262/108582] Fetching compress-nio, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio
[26198/115391] Fetching compress-nio, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio, swift-log
Fetched https://github.com/apple/swift-log.git from cache (1.59s)
[53120/108582] Fetching compress-nio, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio
Fetching https://github.com/apple/swift-http-types.git
[61142/109625] Fetching compress-nio, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio, swift-http-types
Fetched https://github.com/apple/swift-http-types.git from cache (0.53s)
[61608/108582] Fetching compress-nio, swift-service-lifecycle, swift-nio-extras, swift-nio-ssl, swift-nio
Fetched https://github.com/adam-fowler/compress-nio.git from cache (5.06s)
Fetched https://github.com/swift-server/swift-service-lifecycle from cache (5.07s)
Fetched https://github.com/apple/swift-nio-ssl.git from cache (5.13s)
[42774/89748] Fetching swift-nio-extras, swift-nio
Fetched https://github.com/apple/swift-nio-extras.git from cache (14.04s)
Fetched https://github.com/apple/swift-nio.git from cache (14.30s)
Computing version for https://github.com/adam-fowler/compress-nio.git
Computed https://github.com/adam-fowler/compress-nio.git at 1.4.2 (15.48s)
Computing version for https://github.com/apple/swift-nio-extras.git
Computed https://github.com/apple/swift-nio-extras.git at 1.34.0 (1.59s)
Fetching https://github.com/apple/swift-certificates.git
Fetching https://github.com/apple/swift-asn1.git
Fetching https://github.com/apple/swift-algorithms.git
Fetching https://github.com/apple/swift-http-structured-headers.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-async-algorithms.git
[1/1820] Fetching swift-atomics
[74/3633] Fetching swift-atomics, swift-asn1
[510/4875] Fetching swift-atomics, swift-asn1, swift-http-structured-headers
[511/10933] Fetching swift-atomics, swift-asn1, swift-http-structured-headers, swift-algorithms
[1355/18199] Fetching swift-atomics, swift-asn1, swift-http-structured-headers, swift-algorithms, swift-certificates
[1779/24444] Fetching swift-atomics, swift-asn1, swift-http-structured-headers, swift-algorithms, swift-certificates, swift-async-algorithms
Fetched https://github.com/apple/swift-asn1.git from cache (1.11s)
[20452/22631] Fetching swift-atomics, swift-http-structured-headers, swift-algorithms, swift-certificates, swift-async-algorithms
Fetched https://github.com/apple/swift-algorithms.git from cache (1.11s)
[14466/16573] Fetching swift-atomics, swift-http-structured-headers, swift-certificates, swift-async-algorithms
Fetching https://github.com/apple/swift-nio-http2.git
Fetched https://github.com/apple/swift-async-algorithms.git from cache (1.36s)
Fetched https://github.com/apple/swift-http-structured-headers.git from cache (1.56s)
Fetched https://github.com/apple/swift-atomics.git from cache (1.57s)
Fetched https://github.com/apple/swift-certificates.git from cache (1.59s)
[1/12108] Fetching swift-nio-http2
Fetched https://github.com/apple/swift-nio-http2.git from cache (2.33s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (7.84s)
Fetching https://github.com/apple/swift-numerics.git
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics.git from cache (0.81s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (1.89s)
Computing version for https://github.com/apple/swift-http-types.git
Computed https://github.com/apple/swift-http-types.git at 1.5.1 (1.15s)
Computing version for https://github.com/swift-server/swift-service-lifecycle
Computed https://github.com/swift-server/swift-service-lifecycle at 2.11.0 (1.15s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.3 (1.09s)
Fetching https://github.com/apple/swift-collections.git
[1/23894] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (2.71s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 2.37.0 (3.75s)
Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.1.1 (1.01s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.0 (5.10s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.99.0 (3.49s)
Fetching https://github.com/apple/swift-system.git
[1/5601] Fetching swift-system
Fetched https://github.com/apple/swift-system.git from cache (0.74s)
Computing version for https://github.com/apple/swift-http-structured-headers.git
Computed https://github.com/apple/swift-http-structured-headers.git at 1.7.0 (1.63s)
Computing version for https://github.com/apple/swift-certificates.git
Computed https://github.com/apple/swift-certificates.git at 1.19.1 (0.89s)
Fetching https://github.com/apple/swift-crypto.git
[1/17457] Fetching swift-crypto
Fetched https://github.com/apple/swift-crypto.git from cache (2.46s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (3.14s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.12.0 (0.58s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (0.91s)
Computing version for https://github.com/apple/swift-nio-transport-services.git
Computed https://github.com/apple/swift-nio-transport-services.git at 1.28.0 (0.71s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.5.0 (2.84s)
Computing version for https://github.com/apple/swift-nio-http2.git
Computed https://github.com/apple/swift-nio-http2.git at 1.43.0 (0.83s)
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.0
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 1.7.0
Creating working copy for https://github.com/apple/swift-certificates.git
Working copy of https://github.com/apple/swift-certificates.git resolved at 1.19.1
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.99.0
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 2.37.0
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-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.12.0
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 1.34.0
Creating working copy for https://github.com/adam-fowler/compress-nio.git
Working copy of https://github.com/adam-fowler/compress-nio.git resolved at 1.4.2
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 1.28.0
Creating working copy for https://github.com/swift-server/swift-service-lifecycle
Working copy of https://github.com/swift-server/swift-service-lifecycle resolved at 2.11.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.5.0
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
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 1.43.0
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-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.3
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
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
Building for debugging...
[0/447] Write sources
[21/447] Compiling CNIOWindows shim.c
[21/447] Write sources
[29/447] Compiling CNIOWASI CNIOWASI.c
[30/447] Compiling CNIOLinux shim.c
[31/447] Compiling CNIOOpenBSD shim.c
[32/447] Compiling CNIOWindows WSAStartup.c
[32/447] Compiling CNIOPosix event_loop_id.c
[34/447] Compiling CNIOLinux liburing_shims.c
[35/447] Compiling _AtomicsShims.c
[36/447] Compiling CNIODarwin shim.c
[37/447] Compiling CNIOLLHTTP c_nio_http.c
[38/447] Compiling CNIOSHA1 c_nio_sha1.c
[39/447] Compiling fiat_p256_adx_sqr.S
[40/447] Compiling fiat_curve25519_adx_mul.S
[41/447] Compiling fiat_p256_adx_mul.S
[42/447] Compiling fiat_curve25519_adx_square.S
[43/447] Compiling CNIOLLHTTP c_nio_api.c
[44/447] Write swift-version-24593BA9C3E375BF.txt
[45/447] Compiling CNIOBoringSSLShims shims.c
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls13_client.cc:30:
/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.
[46/451] Compiling tls13_client.cc
[46/451] Compiling tls13_both.cc
[46/451] Compiling CNIOLLHTTP c_nio_llhttp.c
[47/451] Emitting module _NIODataStructures
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[47/451] Compiling tls_method.cc
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls13_server.cc:32:
/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>
      |          ^~~~~~~~~~~
[47/451] Compiling tls13_server.cc
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>
      |          ^~~~~~~~~~~
[47/451] Compiling tls_record.cc
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls13_enc.cc:34:
/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>
      |          ^~~~~~~~~~~
[47/451] Compiling tls13_enc.cc
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
[0/402] Write sources
[2/402] Compiling CCompressZlib empty.c
[3/402] Write swift-version-24593BA9C3E375BF.txt
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls_method.cc:17:
/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.
[4/402] Compiling tls_method.cc
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls13_server.cc:32:
/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>
      |          ^~~~~~~~~~~
[4/402] Compiling tls13_server.cc
[4/402] Compiling c-atomics.c
[4/402] Compiling tls13_client.cc
[4/402] Compiling CNIOLLHTTP c_nio_llhttp.c
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>
      |          ^~~~~~~~~~~
[4/402] Compiling c-nioatomics.c
[4/402] Compiling tls_record.cc
In file included from /host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOBoringSSL/ssl/tls13_enc.cc:34:
/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>
      |          ^~~~~~~~~~~
[4/402] Compiling tls13_enc.cc
BUILD FAILURE 6.1 wasm