The Swift Package Index logo.Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build HTMLMinifier, reference main (20a9aa), with Swift 6.1 for Wasm on 4 Dec 2025 16:47:57 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/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/jaywcjlove/HTMLMinifier.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/jaywcjlove/HTMLMinifier
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 20a9aa7 doc: Update README.md
Cloned https://github.com/jaywcjlove/HTMLMinifier.git
Revision (git rev-parse @):
20a9aa7ed789acb2f445145b24e0c649ad145a63
SUCCESS checkout https://github.com/jaywcjlove/HTMLMinifier.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/jaywcjlove/HTMLMinifier.git
https://github.com/jaywcjlove/HTMLMinifier.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTMLMinifier",
  "name" : "HTMLMinifier",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "5.0"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "HTMLMinifier",
      "targets" : [
        "HTMLMinifier"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTMLMinifierTests",
      "module_type" : "SwiftTarget",
      "name" : "HTMLMinifierTests",
      "path" : "Tests/HTMLMinifierTests",
      "sources" : [
        "HTMLMinifierTests.swift"
      ],
      "target_dependencies" : [
        "HTMLMinifier"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTMLMinifier",
      "module_type" : "SwiftTarget",
      "name" : "HTMLMinifier",
      "path" : "Sources/HTMLMinifier",
      "product_memberships" : [
        "HTMLMinifier"
      ],
      "resources" : [
        {
          "path" : "/host/spi-builder-workspace/Sources/HTMLMinifier/Resources/htmlminifier.umd.bundle.min.js",
          "rule" : {
            "copy" : {
            }
          }
        }
      ],
      "sources" : [
        "HTMLMinifier.swift",
        "HTMLMinifierOptions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/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 finestructure/spi-images
Digest: sha256:4dfe22dedd7a52399668938cbd466a34545eff77bced906005dc4032a6549d90
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Building for debugging...
[0/3] Write sources
[1/3] Copying htmlminifier.umd.bundle.min.js
[2/3] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/7] Emitting module HTMLMinifier
<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
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
[5/7] Compiling HTMLMinifier HTMLMinifier.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
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
[6/7] Compiling HTMLMinifier HTMLMinifierOptions.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
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
[7/7] Compiling HTMLMinifier resource_bundle_accessor.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
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
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/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:4dfe22dedd7a52399668938cbd466a34545eff77bced906005dc4032a6549d90
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/5] Compiling HTMLMinifier resource_bundle_accessor.swift
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
[3/5] Compiling HTMLMinifier HTMLMinifierOptions.swift
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/5] Emitting module HTMLMinifier
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
[5/5] Compiling HTMLMinifier HTMLMinifier.swift
/host/spi-builder-workspace/Sources/HTMLMinifier/HTMLMinifier.swift:1:8: error: no such module 'JavaScriptCore'
  1 | import JavaScriptCore
    |        `- error: no such module 'JavaScriptCore'
  2 | import Foundation
  3 |
BUILD FAILURE 6.1 wasm