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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build S3Storage, reference 1.0.0-alpha.1 (47b8da), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 18:37:54 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/skelpo/s3storage.git
Reference: 1.0.0-alpha.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/skelpo/s3storage
 * tag               1.0.0-alpha.1 -> FETCH_HEAD
HEAD is now at 47b8dad Updated API and implementation for S3 4 alpha and NIO 2
Cloned https://github.com/skelpo/s3storage.git
Revision (git rev-parse @):
47b8dad3ac028974c298c874f2b3f4c07b3916cf
SUCCESS checkout https://github.com/skelpo/s3storage.git at 1.0.0-alpha.1
Fetching https://github.com/skelpo/Storage.git
Fetching https://github.com/vapor/routing-kit.git
Fetching https://github.com/vapor/console-kit.git
Fetching https://github.com/LiveUI/XMLCoding.git
Fetching https://github.com/vapor/vapor.git
Fetching https://github.com/apple/swift-nio-http2.git from cache
Fetching https://github.com/apple/swift-nio-ssl.git from cache
[6/536] Fetching xmlcoding
[82/928] Fetching xmlcoding, storage
[141/21651] Fetching xmlcoding, storage, routing-kit
[354/27136] Fetching xmlcoding, storage, routing-kit, console-kit
Fetched https://github.com/skelpo/Storage.git from cache (0.88s)
[7546/26744] Fetching xmlcoding, routing-kit, console-kit
Fetching https://github.com/apple/swift-nio-extras.git from cache
[22186/101042] Fetching xmlcoding, routing-kit, console-kit, vapor
Fetched https://github.com/apple/swift-nio-extras.git from cache (0.53s)
Fetching https://github.com/vapor/async-kit.git
[101043/103412] Fetching xmlcoding, routing-kit, console-kit, vapor, async-kit
Fetched https://github.com/vapor/async-kit.git from cache (0.84s)
Fetching https://github.com/apple/swift-log.git from cache
Fetched https://github.com/vapor/vapor.git from cache (2.53s)
Fetched https://github.com/vapor/console-kit.git from cache (2.53s)
Fetched https://github.com/LiveUI/XMLCoding.git from cache (2.53s)
Fetched https://github.com/vapor/routing-kit.git from cache (2.53s)
Fetched https://github.com/apple/swift-nio-http2.git from cache (2.53s)
Fetched https://github.com/apple/swift-nio-ssl.git from cache (2.53s)
Fetching https://github.com/vapor/nio-websocket-client.git
Fetching https://github.com/LiveUI/S3.git
Fetching https://github.com/apple/swift-nio.git from cache
Fetching https://github.com/vapor/swift-nio-http-client.git
Fetching https://github.com/vapor/crypto-kit.git
Fetched https://github.com/apple/swift-log.git from cache (0.52s)
[1/2786] Fetching crypto-kit
[224/4228] Fetching crypto-kit, s3
warning: 'nio-websocket-client': skipping cache due to an error: Failed to clone repository https://github.com/vapor/nio-websocket-client.git:
    Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/nio-websocket-client-6fc01364'...
    fatal: could not read Username for 'https://github.com': terminal prompts disabled
Fetched https://github.com/vapor/crypto-kit.git from cache (1.00s)
warning: 'swift-nio-http-client': skipping cache due to an error: Failed to clone repository https://github.com/vapor/swift-nio-http-client.git:
    Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/swift-nio-http-client-181fff75'...
    fatal: could not read Username for 'https://github.com': terminal prompts disabled
Fetched https://github.com/LiveUI/S3.git from cache (1.01s)
Computing version for https://github.com/skelpo/Storage.git
Fetched https://github.com/apple/swift-nio.git from cache (1.02s)
Computed https://github.com/skelpo/Storage.git at 1.0.0-alpha.1 (4.26s)
Computing version for https://github.com/LiveUI/S3.git
Computed https://github.com/LiveUI/S3.git at 4.0.0-alpha.1 (0.68s)
Computing version for https://github.com/LiveUI/XMLCoding.git
Computed https://github.com/LiveUI/XMLCoding.git at 0.4.0 (0.57s)
Computing version for https://github.com/vapor/vapor.git
Computed https://github.com/vapor/vapor.git at 4.0.0-alpha.1.5 (0.60s)
Fetching https://github.com/vapor/nio-websocket-client.git
Fetching https://github.com/vapor/swift-nio-http-client.git
warning: 'swift-nio-http-client': skipping cache due to an error: Failed to clone repository https://github.com/vapor/swift-nio-http-client.git:
    Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/swift-nio-http-client-181fff75'...
    fatal: could not read Username for 'https://github.com': terminal prompts disabled
warning: 'nio-websocket-client': skipping cache due to an error: Failed to clone repository https://github.com/vapor/nio-websocket-client.git:
    Cloning into bare repository '/Users/admin/Library/Caches/org.swift.swiftpm/repositories/nio-websocket-client-6fc01364'...
    fatal: could not read Username for 'https://github.com': terminal prompts disabled
error: Failed to clone repository https://github.com/vapor/swift-nio-http-client.git:
    Cloning into bare repository '/Users/admin/builder/spi-builder-workspace/.build/repositories/swift-nio-http-client-181fff75'...
    fatal: could not read Username for 'https://github.com': terminal prompts disabled
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/skelpo/s3storage.git
https://github.com/skelpo/s3storage.git
{
  "dependencies" : [
    {
      "identity" : "s3",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.0-alpha",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/LiveUI/S3.git"
    },
    {
      "identity" : "storage",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0-alpha",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/skelpo/Storage.git"
    }
  ],
  "manifest_display_name" : "S3Storage",
  "name" : "S3Storage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "S3Storage",
      "targets" : [
        "S3Storage"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "S3StorageTests",
      "module_type" : "SwiftTarget",
      "name" : "S3StorageTests",
      "path" : "Tests/S3StorageTests",
      "sources" : [
        "S3StorageTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "S3Storage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "S3Storage",
      "module_type" : "SwiftTarget",
      "name" : "S3Storage",
      "path" : "Sources/S3Storage",
      "product_dependencies" : [
        "Storage",
        "S3"
      ],
      "product_memberships" : [
        "S3Storage"
      ],
      "sources" : [
        "S3Storage.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Updating https://github.com/LiveUI/S3.git
Updating https://github.com/skelpo/Storage.git
Updated https://github.com/LiveUI/S3.git (0.45s)
Updated https://github.com/skelpo/Storage.git (0.45s)
Computing version for https://github.com/LiveUI/S3.git
Computed https://github.com/LiveUI/S3.git at 4.0.0-alpha.1 (1.04s)
Updating https://github.com/vapor/vapor.git
Updating https://github.com/LiveUI/XMLCoding.git
Updated https://github.com/vapor/vapor.git (0.71s)
Updated https://github.com/LiveUI/XMLCoding.git (0.71s)
Computing version for https://github.com/LiveUI/XMLCoding.git
Computed https://github.com/LiveUI/XMLCoding.git at 0.4.1 (1.31s)
Computing version for https://github.com/skelpo/Storage.git
Computed https://github.com/skelpo/Storage.git at 1.0.0 (0.57s)
Updating https://github.com/apple/swift-nio.git
Updated https://github.com/apple/swift-nio.git (0.75s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.82.0 (1.47s)
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Computed https://github.com/apple/swift-atomics.git at 1.2.0 (1.30s)
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Computed https://github.com/apple/swift-system.git at 1.4.2 (0.43s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.1.4 (0.66s)
Computing version for https://github.com/vapor/vapor.git
Computed https://github.com/vapor/vapor.git at 4.114.1 (0.60s)
Fetching https://github.com/vapor/websocket-kit.git
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[1/1059] Fetching swift-service-context
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Updated https://github.com/apple/swift-nio-extras.git (0.54s)
Updating https://github.com/apple/swift-nio-http2.git
Updated https://github.com/apple/swift-nio-http2.git (0.56s)
Updating https://github.com/apple/swift-nio-ssl.git
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Updating https://github.com/vapor/routing-kit.git
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Working copy of https://github.com/vapor/vapor.git resolved at 4.114.1
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Creating working copy for https://github.com/apple/swift-distributed-tracing.git
Working copy of https://github.com/apple/swift-distributed-tracing.git resolved at 1.2.0
error: the library 'S3TestTools' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3TestTools' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
error: the library 'S3Signer' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3Signer' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
error: the library 'S3' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
error: the library 'S3TestTools' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3TestTools' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
error: the library 'S3Signer' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3Signer' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
error: the library 'S3' requires macos 10.13, but depends on the product 'Vapor' which requires macos 10.15; consider changing the library 'S3' to require macos 10.15 or later, or the product 'Vapor' to require macos 10.13 or earlier.
BUILD FAILURE 6.1 macosSpm