Swift Package Index

Build Information

Failed to build SwiftTailwind, reference 1.2.0+tw.4.3.3 (9bdfd4), with Swift 6.1 for Wasm on 13 Aug 2026 17:52:08 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.0.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/laosb/SwiftTailwind.git
Reference: 1.2.0+tw.4.3.3
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/laosb/SwiftTailwind
 * tag               1.2.0+tw.4.3.3 -> FETCH_HEAD
HEAD is now at 9bdfd48 Update TailwindCSS CLI to v4.3.3
Cloned https://github.com/laosb/SwiftTailwind.git
Revision (git rev-parse @):
9bdfd48a140a917138bd35f5082aa024a0fb9ac3
SUCCESS checkout https://github.com/laosb/SwiftTailwind.git at 1.2.0+tw.4.3.3
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/laosb/SwiftTailwind.git
https://github.com/laosb/SwiftTailwind.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.1-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 saguaro1/spi-images
Digest: sha256:290f441d1f5b7bf0dbbe61e8b7514208804cdcb507d57b3c762463ad036298f7
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Fetching https://github.com/apple/swift-argument-parser.git
Fetching https://github.com/swiftlang/swift-subprocess.git
Fetching https://github.com/apple/swift-crypto.git
[1/4644] Fetching swift-subprocess
[141/22966] Fetching swift-subprocess, swift-crypto
[5745/41257] Fetching swift-subprocess, swift-crypto, swift-argument-parser
Fetched https://github.com/swiftlang/swift-subprocess.git from cache (0.57s)
[1466/36613] Fetching swift-crypto, swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser.git from cache (1.24s)
Fetched https://github.com/apple/swift-crypto.git from cache (1.24s)
Computing version for https://github.com/swiftlang/swift-subprocess.git
Computed https://github.com/swiftlang/swift-subprocess.git at 0.4.0 (1.52s)
Fetching https://github.com/apple/swift-system
[1/6840] Fetching swift-system
Fetched https://github.com/apple/swift-system from cache (0.65s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.8.2 (0.88s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.8.0 (0.25s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.5.1 (1.44s)
Fetching https://github.com/apple/swift-asn1.git
[1/1933] Fetching swift-asn1
Fetched https://github.com/apple/swift-asn1.git from cache (1.13s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.7.1 (1.38s)
Creating working copy for https://github.com/swiftlang/swift-subprocess.git
Working copy of https://github.com/swiftlang/swift-subprocess.git resolved at 0.4.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.5.1
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.7.1
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.8.2
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.8.0
Downloading binary artifact https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip
[16375/42309270] Downloading https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip
Downloaded https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip (2.64s)
[1/1] Compiling plugin TailwindCSS
[2/2] Compiling plugin GenerateManual
[3/3] Compiling plugin GenerateDoccReference
Building for debugging...
[3/398] Write sources
[7/398] Copying Test.html
[8/398] Write sources
In file included from /host/spi-builder-workspace/.build/checkouts/swift-subprocess/Sources/_SubprocessCShims/process_shims.c:23:
/host/spi-builder-workspace/.build/checkouts/swift-subprocess/Sources/_SubprocessCShims/include/process_shims.h:18:10: fatal error: 'pthread.h' file not found
   18 | #include <pthread.h>
      |          ^~~~~~~~~~~
1 error generated.
[10/398] Compiling _SubprocessCShims process_shims.c
[10/398] Compiling a_bitstr.cc
[10/398] Compiling x509_req.cc
[10/398] Building Tailwind CSS
[10/398] Compiling p_ec.cc
[10/398] Compiling SimpleFIPS202.c
[10/398] Compiling CXKCPShims shims.c
[10/398] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:290f441d1f5b7bf0dbbe61e8b7514208804cdcb507d57b3c762463ad036298f7
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Downloading binary artifact https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip
[804/42309270] Downloading https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip
Downloaded https://github.com/laosb/SwiftTailwind/releases/download/TailwindCSSCLI-v4.3.3-00553dd33b62f0dc34b48d2105da59800a1c209dd0db89bd213f6bcf26b276f2/tailwindcss-v4.3.3-x86_64-unknown-linux-gnu.artifactbundle.zip (3.08s)
[0/1] Planning build
[1/1] Compiling plugin TailwindCSS
[2/2] Compiling plugin GenerateManual
[3/3] Compiling plugin GenerateDoccReference
Building for debugging...
[3/391] Write sources
[4/391] Compiling CSystem shims.c
[5/391] Compiling CXKCPShims shims.c
[6/391] Compiling KeccakHash.c
[7/391] Compiling SimpleFIPS202.c
In file included from /host/spi-builder-workspace/.build/checkouts/swift-subprocess/Sources/_SubprocessCShims/process_shims.c:23:
/host/spi-builder-workspace/.build/checkouts/swift-subprocess/Sources/_SubprocessCShims/include/process_shims.h:18:10: fatal error: 'pthread.h' file not found
   18 | #include <pthread.h>
      |          ^~~~~~~~~~~
1 error generated.
[8/391] Compiling _SubprocessCShims process_shims.c
[8/391] Compiling fiat_p256_adx_mul.S
[8/391] Compiling CCryptoBoringSSLShims shims.c
[8/391] Building Tailwind CSS
[8/391] Compiling KeccakSponge.c
[8/391] Compiling KeccakP-1600-opt64.c
[8/391] Compiling fiat_p256_adx_sqr.S
[8/391] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.1 wasm