Readium – Build Information – Swift Package Index

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

Build Information

Failed to build Readium, reference 3.4.0 (806ece), with Swift 6.2 (beta) for macOS (SPM) on 3 Sep 2025 15:53:09 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/readium/swift-toolkit.git
Reference: 3.4.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/readium/swift-toolkit
 * tag               3.4.0      -> FETCH_HEAD
HEAD is now at 806ece1 3.4.0 (#644)
Cloned https://github.com/readium/swift-toolkit.git
Revision (git rev-parse @):
806ece1f5ebfab028a221105346f7706d4761f3f
SUCCESS checkout https://github.com/readium/swift-toolkit.git at 3.4.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/readium/swift-toolkit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64
Fetching https://github.com/scinfu/SwiftSoup.git
Fetching https://github.com/readium/Fuzi.git
Fetching https://github.com/stephencelis/SQLite.swift.git
Fetching https://github.com/readium/GCDWebServer.git
Fetching https://github.com/readium/ZIPFoundation.git
Fetching https://github.com/ra1028/DifferenceKit.git
Fetching https://github.com/marmelroy/Zip.git
[1/2319] Fetching differencekit
[2/3159] Fetching differencekit, fuzi
[393/7383] Fetching differencekit, fuzi, gcdwebserver
[562/12611] Fetching differencekit, fuzi, gcdwebserver, zipfoundation
[615/14604] Fetching differencekit, fuzi, gcdwebserver, zipfoundation, zip
[825/19161] Fetching differencekit, fuzi, gcdwebserver, zipfoundation, zip, swiftsoup
[917/29218] Fetching differencekit, fuzi, gcdwebserver, zipfoundation, zip, swiftsoup, sqlite.swift
Fetched https://github.com/scinfu/SwiftSoup.git from cache (1.23s)
[11726/24661] Fetching differencekit, fuzi, gcdwebserver, zipfoundation, zip, sqlite.swift
Fetching https://github.com/krzyzanowskim/CryptoSwift.git
Fetched https://github.com/readium/ZIPFoundation.git from cache (1.42s)
Fetched https://github.com/stephencelis/SQLite.swift.git from cache (1.48s)
Fetched https://github.com/readium/Fuzi.git from cache (1.49s)
[6382/8536] Fetching differencekit, gcdwebserver, zip
Fetched https://github.com/marmelroy/Zip.git from cache (1.57s)
Fetched https://github.com/readium/GCDWebServer.git from cache (1.57s)
Fetched https://github.com/ra1028/DifferenceKit.git from cache (1.57s)
[1/13012] Fetching cryptoswift
Fetched https://github.com/krzyzanowskim/CryptoSwift.git from cache (1.73s)
Computing version for https://github.com/readium/ZIPFoundation.git
Computed https://github.com/readium/ZIPFoundation.git at 3.0.0 (3.59s)
Computing version for https://github.com/readium/Fuzi.git
Computed https://github.com/readium/Fuzi.git at 4.0.0 (2.58s)
Computing version for https://github.com/ra1028/DifferenceKit.git
Computed https://github.com/ra1028/DifferenceKit.git at 1.3.0 (0.52s)
Computing version for https://github.com/readium/GCDWebServer.git
Computed https://github.com/readium/GCDWebServer.git at 4.0.1 (0.50s)
Computing version for https://github.com/marmelroy/Zip.git
Computed https://github.com/marmelroy/Zip.git at 2.1.2 (0.54s)
Computing version for https://github.com/stephencelis/SQLite.swift.git
Computed https://github.com/stephencelis/SQLite.swift.git at 0.15.4 (0.43s)
Fetching https://github.com/swiftlang/swift-toolchain-sqlite
[1/171] Fetching swift-toolchain-sqlite
Fetched https://github.com/swiftlang/swift-toolchain-sqlite from cache (1.37s)
Computing version for https://github.com/swiftlang/swift-toolchain-sqlite
Computed https://github.com/swiftlang/swift-toolchain-sqlite at 1.0.4 (1.80s)
Computing version for https://github.com/krzyzanowskim/CryptoSwift.git
Computed https://github.com/krzyzanowskim/CryptoSwift.git at 1.9.0 (0.50s)
Computing version for https://github.com/scinfu/SwiftSoup.git
Computed https://github.com/scinfu/SwiftSoup.git at 2.11.0 (0.46s)
Fetching https://github.com/nicklockwood/LRUCache.git
Fetching https://github.com/apple/swift-atomics.git
[1/1814] Fetching swift-atomics
[74/2134] Fetching swift-atomics, lrucache
Fetched https://github.com/apple/swift-atomics.git from cache (1.01s)
Fetched https://github.com/nicklockwood/LRUCache.git from cache (1.01s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (1.47s)
Computing version for https://github.com/nicklockwood/LRUCache.git
Computed https://github.com/nicklockwood/LRUCache.git at 1.1.2 (0.53s)
Creating working copy for https://github.com/readium/GCDWebServer.git
Working copy of https://github.com/readium/GCDWebServer.git resolved at 4.0.1
Creating working copy for https://github.com/krzyzanowskim/CryptoSwift.git
Working copy of https://github.com/krzyzanowskim/CryptoSwift.git resolved at 1.9.0
Creating working copy for https://github.com/scinfu/SwiftSoup.git
Working copy of https://github.com/scinfu/SwiftSoup.git resolved at 2.11.0
Creating working copy for https://github.com/readium/ZIPFoundation.git
Working copy of https://github.com/readium/ZIPFoundation.git resolved at 3.0.0
Creating working copy for https://github.com/ra1028/DifferenceKit.git
Working copy of https://github.com/ra1028/DifferenceKit.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Creating working copy for https://github.com/nicklockwood/LRUCache.git
Working copy of https://github.com/nicklockwood/LRUCache.git resolved at 1.1.2
Creating working copy for https://github.com/marmelroy/Zip.git
Working copy of https://github.com/marmelroy/Zip.git resolved at 2.1.2
Creating working copy for https://github.com/swiftlang/swift-toolchain-sqlite
Working copy of https://github.com/swiftlang/swift-toolchain-sqlite resolved at 1.0.4
Creating working copy for https://github.com/stephencelis/SQLite.swift.git
Working copy of https://github.com/stephencelis/SQLite.swift.git resolved at 0.15.4
Creating working copy for https://github.com/readium/Fuzi.git
Working copy of https://github.com/readium/Fuzi.git resolved at 4.0.0
error: the library 'ReadiumLCP' requires macos 10.13, but depends on the product 'ReadiumZIPFoundation' which requires macos 11.0; consider changing the library 'ReadiumLCP' to require macos 11.0 or later, or the product 'ReadiumZIPFoundation' to require macos 10.13 or earlier.
error: the library 'ReadiumNavigator' requires macos 10.13, but depends on the product 'SwiftSoup' which requires macos 10.15; consider changing the library 'ReadiumNavigator' to require macos 10.15 or later, or the product 'SwiftSoup' to require macos 10.13 or earlier.
error: the library 'ReadiumShared' requires macos 10.13, but depends on the product 'SwiftSoup' which requires macos 10.15; consider changing the library 'ReadiumShared' to require macos 10.15 or later, or the product 'SwiftSoup' to require macos 10.13 or earlier.
error: the library 'ReadiumShared' requires macos 10.13, but depends on the product 'ReadiumZIPFoundation' which requires macos 11.0; consider changing the library 'ReadiumShared' to require macos 11.0 or later, or the product 'ReadiumZIPFoundation' to require macos 10.13 or earlier.
BUILD FAILURE 6.2 macosSpm