Swift Package Index

Build Information

Failed to build KrakenKit, reference master (cba32f), with Swift 6.3 for macOS (SPM) on 11 Apr 2026 07:35:20 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/krakencl/krakenkit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/krakencl/krakenkit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at cba32fe Add HOW TO repository notice.
Cloned https://github.com/krakencl/krakenkit.git
Revision (git rev-parse @):
cba32fe482765679b891ec6491e74f4e82574ec2
SUCCESS checkout https://github.com/krakencl/krakenkit.git at master
Fetching https://github.com/KrakenCL/LibPNG.git
Fetching https://github.com/apple/swift-protobuf.git
[1/57] Fetching libpng
[58/45892] Fetching libpng, swift-protobuf
Fetched https://github.com/KrakenCL/LibPNG.git from cache (5.85s)
Fetched https://github.com/apple/swift-protobuf.git from cache (5.85s)
Computing version for https://github.com/KrakenCL/LibPNG.git
Computed https://github.com/KrakenCL/LibPNG.git at 0.0.3 (6.82s)
Computing version for https://github.com/apple/swift-protobuf.git
Computed https://github.com/apple/swift-protobuf.git at 1.3.1 (0.75s)
Creating working copy for https://github.com/apple/swift-protobuf.git
Working copy of https://github.com/apple/swift-protobuf.git resolved at 1.3.1
Creating working copy for https://github.com/KrakenCL/LibPNG.git
Working copy of https://github.com/KrakenCL/LibPNG.git resolved at 0.0.3
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "traits": [
    "default"
  ],
  "dependencies": [
    {
      "identity": "krakenkit",
      "name": "KrakenKit",
      "url": "https://github.com/krakencl/krakenkit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/krakenkit",
      "traits": [
        "default"
      ],
      "dependencies": [
        {
          "identity": "swift-protobuf",
          "name": "SwiftProtobuf",
          "url": "https://github.com/apple/swift-protobuf.git",
          "version": "1.36.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-protobuf",
          "traits": [
            "BinaryDelimitedStreams",
            "FieldMaskUtilities"
          ],
          "dependencies": [
          ]
        },
        {
          "identity": "libpng",
          "name": "LibPNG",
          "url": "https://github.com/KrakenCL/LibPNG.git",
          "version": "0.0.3",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/LibPNG",
          "traits": [
            "default"
          ],
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/krakencl/krakenkit.git
[1/290] Fetching krakenkit
Fetched https://github.com/krakencl/krakenkit.git from cache (0.84s)
Fetching https://github.com/apple/swift-protobuf.git from cache
Fetching https://github.com/KrakenCL/LibPNG.git from cache
Fetched https://github.com/apple/swift-protobuf.git from cache (0.66s)
Fetched https://github.com/KrakenCL/LibPNG.git from cache (0.66s)
Computing version for https://github.com/KrakenCL/LibPNG.git
Computed https://github.com/KrakenCL/LibPNG.git at 0.0.3 (0.72s)
Computing version for https://github.com/apple/swift-protobuf.git
Computed https://github.com/apple/swift-protobuf.git at 1.36.1 (0.64s)
Creating working copy for https://github.com/KrakenCL/LibPNG.git
Working copy of https://github.com/KrakenCL/LibPNG.git resolved at 0.0.3
Creating working copy for https://github.com/apple/swift-protobuf.git
Working copy of https://github.com/apple/swift-protobuf.git resolved at 1.36.1
Creating working copy for https://github.com/krakencl/krakenkit.git
Working copy of https://github.com/krakencl/krakenkit.git resolved at master (cba32fe)
warning: '.resolve-product-dependencies': dependency 'krakenkit' is not used by any target
Found 2 product dependencies
  - SwiftProtobuf
  - LibPNG
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/krakencl/krakenkit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/9] Write sources
[4/9] Write swift-version--6988338F2F200930.txt
[6/82] Emitting module SwiftProtobuf
[7/89] Compiling LibPNG LibPNG.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/LibPNG/Library/CPNG/module.modulemap:2:10: error: header '/usr/local/include/png.h' not found
1 | module CPNG [system] {
2 |   header "/usr/local/include/png.h"
  |          `- error: header '/usr/local/include/png.h' not found
3 |   link "png"
4 |   export *
/Users/admin/builder/spi-builder-workspace/.build/checkouts/LibPNG/Sources/LibPNG/LibPNG.swift:19:8: error: could not build Objective-C module 'CPNG'
 17 |
 18 | import Foundation
 19 | import CPNG
    |        `- error: could not build Objective-C module 'CPNG'
 20 |
 21 | public typealias Pixel = UInt8
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/89] Emitting module LibPNG
/Users/admin/builder/spi-builder-workspace/.build/checkouts/LibPNG/Library/CPNG/module.modulemap:2:10: error: header '/usr/local/include/png.h' not found
1 | module CPNG [system] {
2 |   header "/usr/local/include/png.h"
  |          `- error: header '/usr/local/include/png.h' not found
3 |   link "png"
4 |   export *
/Users/admin/builder/spi-builder-workspace/.build/checkouts/LibPNG/Sources/LibPNG/LibPNG.swift:19:8: error: could not build Objective-C module 'CPNG'
 17 |
 18 | import Foundation
 19 | import CPNG
    |        `- error: could not build Objective-C module 'CPNG'
 20 |
 21 | public typealias Pixel = UInt8
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install libpng using your system-packager:
    brew install libpng
warning: you may be able to install libpng using your system-packager:
    brew install libpng
BUILD FAILURE 6.3 macosSpm