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 AsyncMux, reference main (0d45f6), with Swift 6.1 for Wasm on 16 Sep 2025 16:46:58 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/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/crontab/AsyncMux.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/crontab/AsyncMux
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 0d45f6c Updated change log in TODO.md
Cloned https://github.com/crontab/AsyncMux.git
Revision (git rev-parse @):
0d45f6c12b1c6ec61664da685bfd0912a8cd0f5a
SUCCESS checkout https://github.com/crontab/AsyncMux.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/crontab/AsyncMux.git
https://github.com/crontab/AsyncMux.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "AsyncMux",
  "name" : "AsyncMux",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncMux",
      "targets" : [
        "AsyncMux"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncMux",
      "module_type" : "SwiftTarget",
      "name" : "AsyncMux",
      "path" : "AsyncMux/Sources",
      "product_memberships" : [
        "AsyncMux"
      ],
      "sources" : [
        "AsyncError.swift",
        "AsyncMedia.swift",
        "AsyncUtils.swift",
        "MultiRequester.swift",
        "Multiplexer.swift",
        "MultiplexerMap.swift",
        "MuxCacher.swift",
        "MuxRepository.swift",
        "Zip.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:eb0758f51dbd6991fb9e51dedbfbcbec142ffc0d3b9b8ad91fa19d35e5136f0a
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/11] Compiling AsyncMux MultiplexerMap.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[4/12] Compiling AsyncMux MuxCacher.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[5/12] Compiling AsyncMux MuxRepository.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[6/12] Compiling AsyncMux AsyncUtils.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/12] Emitting module AsyncMux
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[8/12] Compiling AsyncMux Multiplexer.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[9/12] Compiling AsyncMux MultiRequester.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[10/12] Compiling AsyncMux AsyncError.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[11/12] Compiling AsyncMux AsyncMedia.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[12/12] Compiling AsyncMux Zip.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
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/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:eb0758f51dbd6991fb9e51dedbfbcbec142ffc0d3b9b8ad91fa19d35e5136f0a
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
[2/10] Compiling AsyncMux MultiplexerMap.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[3/11] Compiling AsyncMux MuxRepository.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[4/11] Compiling AsyncMux MuxCacher.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/11] Emitting module AsyncMux
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[6/11] Compiling AsyncMux Multiplexer.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[7/11] Compiling AsyncMux MultiRequester.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[8/11] Compiling AsyncMux AsyncUtils.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[9/11] Compiling AsyncMux AsyncError.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[10/11] Compiling AsyncMux AsyncMedia.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
[11/11] Compiling AsyncMux Zip.swift
/host/spi-builder-workspace/AsyncMux/Sources/AsyncUtils.swift:9:8: error: no such module 'CryptoKit'
 7 |
 8 | import Foundation
 9 | import CryptoKit
   |        `- error: no such module 'CryptoKit'
10 |
11 |
BUILD FAILURE 6.1 wasm