Swift Package IndexBuild Information
Failed to build swift-ast-explorer, reference master (490009), with Swift 6.1 for Wasm on 2 May 2026 02:23:38 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftfiddle/swift-ast-explorer.git
Reference: master
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/swiftfiddle/swift-ast-explorer
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 4900091 Update dependency eslint to v10.3.0 (#1893)
Cloned https://github.com/swiftfiddle/swift-ast-explorer.git
Revision (git rev-parse @):
4900091e62de0fe180ce4ab8dcac457ec0ad7a5a
SUCCESS checkout https://github.com/swiftfiddle/swift-ast-explorer.git at master
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/swiftfiddle/swift-ast-explorer.git
https://github.com/swiftfiddle/swift-ast-explorer.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$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
70792468e643: Already exists
ac053c427195: Pulling fs layer
a2b0bee87d43: Pulling fs layer
736d91014298: Pulling fs layer
654751ccf932: Pulling fs layer
1a92cd88305f: Pulling fs layer
654751ccf932: Waiting
1a92cd88305f: Waiting
736d91014298: Verifying Checksum
736d91014298: Download complete
654751ccf932: Verifying Checksum
654751ccf932: Download complete
ac053c427195: Verifying Checksum
ac053c427195: Download complete
1a92cd88305f: Verifying Checksum
1a92cd88305f: Download complete
a2b0bee87d43: Verifying Checksum
a2b0bee87d43: Download complete
ac053c427195: Pull complete
a2b0bee87d43: Pull complete
736d91014298: Pull complete
654751ccf932: Pull complete
1a92cd88305f: Pull complete
Digest: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Downloaded newer image for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
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Building for debugging...
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<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
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<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
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error: emit-module command failed with exit code 1 (use -v to see invocation)
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/host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCLibc/libc.swift:21:19: error: no such module 'Darwin.C'
19 | @_exported import Android
20 | #else
21 | @_exported import Darwin.C
| `- error: no such module 'Darwin.C'
22 | #endif
23 |
[94/996] Compiling TSCLibc libc.swift
/host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCLibc/libc.swift:21:19: error: no such module 'Darwin.C'
19 | @_exported import Android
20 | #else
21 | @_exported import Darwin.C
| `- error: no such module 'Darwin.C'
22 | #endif
23 |
[95/996] Emitting module ServiceContextModule
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[96/996] Compiling ServiceContextModule ServiceContext.swift
<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
<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
<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
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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...
[0/843] Compiling CNIOExtrasZlib inffast.c
[0/843] Compiling CNIOExtrasZlib zutil.c
[2/843] Compiling CNIOExtrasZlib inftrees.c
[3/843] Compiling CNIOExtrasZlib crc32.c
[4/843] Compiling CNIODarwin shim.c
[5/843] Compiling CNIOExtrasZlib deflate.c
[6/843] Compiling CNIOExtrasZlib trees.c
[6/843] Compiling CNIOExtrasZlib inflate.c
[8/843] Compiling fiat_p256_adx_sqr.S
[9/843] Compiling fiat_p256_adx_mul.S
[10/843] Compiling fiat_curve25519_adx_mul.S
[10/843] Compiling fiat_curve25519_adx_square.S
[12/843] Write swift-version-24593BA9C3E375BF.txt
[13/843] Compiling CNIOExtrasZlib adler32.c
[14/843] Compiling CNIOBoringSSLShims shims.c
[16/849] Compiling _NIODataStructures _TinyArray.swift
[17/849] Compiling _NIODataStructures PriorityQueue.swift
[18/849] Emitting module _NIOBase64
[19/849] Compiling _NIOBase64 Base64.swift
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.
[19/850] Compiling tls_method.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>
| ^~~~~~~~~~~
1 error generated.
[19/850] Compiling tls13_enc.cc
[19/850] Compiling KeccakP-1600-opt64.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>
| ^~~~~~~~~~~
[19/850] Compiling tls_record.cc
[20/850] Emitting module _NIODataStructures
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>
| ^~~~~~~~~~~
[20/850] Compiling tls13_client.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>
| ^~~~~~~~~~~
[20/850] Compiling tls13_server.cc
BUILD FAILURE 6.1 wasm