Swift Package Index

Build Information

Failed to build CRDT, reference 0.5.0 (04ff7d), with Swift 6.3 for macOS (SPM) on 20 Apr 2026 23:24:39 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/heckj/CRDT.git
Reference: 0.5.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/heckj/CRDT
 * tag               0.5.0      -> FETCH_HEAD
HEAD is now at 04ff7d1 doc update
Cloned https://github.com/heckj/CRDT.git
Revision (git rev-parse @):
04ff7d1dfdc36558efc6c5be9f9c158e1c0b5f00
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/heckj/CRDT.git at 0.5.0
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-collections-benchmark
[1/506] Fetching swift-collections-benchmark
[88/2783] Fetching swift-collections-benchmark, swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin from cache (1.20s)
Fetched https://github.com/apple/swift-collections-benchmark from cache (1.20s)
Computing version for https://github.com/apple/swift-collections-benchmark
Computed https://github.com/apple/swift-collections-benchmark at 0.0.4 (1.82s)
Fetching https://github.com/apple/swift-argument-parser
Fetching https://github.com/apple/swift-system
[1/17424] Fetching swift-argument-parser
[2/23025] Fetching swift-argument-parser, swift-system
Fetched https://github.com/apple/swift-system from cache (1.21s)
[13940/17424] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.45s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (1.97s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.7.1 (0.61s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.6 (0.66s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3672] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.11s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.95s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.6
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-collections-benchmark
Working copy of https://github.com/apple/swift-collections-benchmark resolved at 0.0.4
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.7.1
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
========================================
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": "crdt",
      "name": "CRDT",
      "url": "https://github.com/heckj/CRDT.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CRDT",
      "traits": [
        "default"
      ],
      "dependencies": [
        {
          "identity": "swift-collections-benchmark",
          "name": "swift-collections-benchmark",
          "url": "https://github.com/apple/swift-collections-benchmark",
          "version": "0.0.4",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-collections-benchmark",
          "traits": [
            "default"
          ],
          "dependencies": [
            {
              "identity": "swift-argument-parser",
              "name": "swift-argument-parser",
              "url": "https://github.com/apple/swift-argument-parser",
              "version": "1.7.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
              "traits": [
                "default"
              ],
              "dependencies": [
              ]
            },
            {
              "identity": "swift-system",
              "name": "swift-system",
              "url": "https://github.com/apple/swift-system",
              "version": "1.6.4",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-system",
              "traits": [
                "default"
              ],
              "dependencies": [
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/heckj/CRDT.git
[1/1308] Fetching crdt
Fetched https://github.com/heckj/CRDT.git from cache (1.45s)
Fetching https://github.com/apple/swift-collections-benchmark from cache
Fetched https://github.com/apple/swift-collections-benchmark from cache (0.41s)
Computing version for https://github.com/apple/swift-collections-benchmark
Computed https://github.com/apple/swift-collections-benchmark at 0.0.4 (0.48s)
Fetching https://github.com/apple/swift-system from cache
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.57s)
Fetched https://github.com/apple/swift-system from cache (0.57s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (0.64s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.7.1 (0.05s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.7.1
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-collections-benchmark
Working copy of https://github.com/apple/swift-collections-benchmark resolved at 0.0.4
Creating working copy for https://github.com/heckj/CRDT.git
Working copy of https://github.com/heckj/CRDT.git resolved at 0.5.0 (04ff7d1)
Found 1 product dependencies
  - swift-collections-benchmark
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/heckj/CRDT.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
error: the executable 'crdt-benchmark' requires macos 10.15, but depends on the product 'CollectionsBenchmark' which requires macos 15.0; consider changing the executable 'crdt-benchmark' to require macos 15.0 or later, or the product 'CollectionsBenchmark' to require macos 10.15 or earlier.
BUILD FAILURE 6.3 macosSpm