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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 Bivrost, reference 0.0.4 (339701), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 11:28:59 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/gnosis/bivrost-swift.git
Reference: 0.0.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/gnosis/bivrost-swift
 * tag               0.0.4      -> FETCH_HEAD
HEAD is now at 339701f Small fixes. (#11)
Cloned https://github.com/gnosis/bivrost-swift.git
Revision (git rev-parse @):
339701fea3d070e07cb89b8b9a594a63aef18966
SUCCESS checkout https://github.com/gnosis/bivrost-swift.git at 0.0.4
Fetching https://github.com/kylef/Commander.git
[1/1588] Fetching commander
Fetched https://github.com/kylef/Commander.git from cache (0.88s)
Fetching https://github.com/PoissonBallon/PathKit.git
[1/662] Fetching pathkit
Fetched https://github.com/PoissonBallon/PathKit.git from cache (0.68s)
Fetching https://github.com/zweigraf/Stencil.git
[1/1750] Fetching stencil
Fetched https://github.com/zweigraf/Stencil.git from cache (0.90s)
Fetching https://github.com/zweigraf/StencilSwiftKit.git
[1/1276] Fetching stencilswiftkit
Fetched https://github.com/zweigraf/StencilSwiftKit.git from cache (0.90s)
Fetching https://github.com/kylef/Spectre.git
Fetching https://github.com/attaswift/SipHash
Fetching https://github.com/Quick/Nimble.git
Fetching https://github.com/krzyzanowskim/CryptoSwift
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/attaswift/BigInt.git
[1/440] Fetching siphash
[67/5211] Fetching siphash, bigint
[68/6232] Fetching siphash, bigint, spectre
[140/19166] Fetching siphash, bigint, spectre, cryptoswift
[541/33921] Fetching siphash, bigint, spectre, cryptoswift, quick
[2004/53488] Fetching siphash, bigint, spectre, cryptoswift, quick, nimble
Fetched https://github.com/attaswift/BigInt.git from cache (1.74s)
Fetched https://github.com/Quick/Quick.git from cache (1.74s)
Fetched https://github.com/krzyzanowskim/CryptoSwift from cache (1.74s)
Fetched https://github.com/kylef/Spectre.git from cache (1.77s)
Fetched https://github.com/attaswift/SipHash from cache (1.77s)
Fetched https://github.com/Quick/Nimble.git from cache (1.77s)
Computing version for https://github.com/kylef/Spectre.git
Computed https://github.com/kylef/Spectre.git at 0.8.0 (2.38s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 1.2.0 (0.63s)
Computing version for https://github.com/Quick/Nimble.git
error: Dependencies could not be resolved because root depends on 'nimble' 7.0.2..<7.1.0.
'nimble' < 7.1.0 cannot be used because 'nimble' < 7.0.4 contains incompatible tools version (3.0.0) and no versions of 'nimble' match the requirement 7.0.4..<7.1.0.
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/gnosis/bivrost-swift.git
https://github.com/gnosis/bivrost-swift.git
{
  "dependencies" : [
    {
      "identity" : "cryptoswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.8.0",
            "upper_bound" : "0.9.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/krzyzanowskim/CryptoSwift"
    },
    {
      "identity" : "bigint",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.0.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/attaswift/BigInt.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "7.0.2",
            "upper_bound" : "7.1.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.0",
            "upper_bound" : "1.3.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "commander",
      "requirement" : {
        "revision" : [
          "e0cbee1bd73778c1076c675eaf660e97d09f3b32"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/kylef/Commander.git"
    },
    {
      "identity" : "pathkit",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PoissonBallon/PathKit.git"
    },
    {
      "identity" : "stencil",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/zweigraf/Stencil.git"
    },
    {
      "identity" : "stencilswiftkit",
      "requirement" : {
        "revision" : [
          "82a0099e5c446348692a2ba40ffbba980c6b8898"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/zweigraf/StencilSwiftKit.git"
    }
  ],
  "manifest_display_name" : "Bivrost",
  "name" : "Bivrost",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "bivrost",
      "targets" : [
        "Bivrost"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "BivrostKit",
      "targets" : [
        "BivrostKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BivrostHelper",
      "targets" : [
        "BivrostHelper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "4"
  ],
  "targets" : [
    {
      "c99name" : "BivrostKitTests",
      "module_type" : "SwiftTarget",
      "name" : "BivrostKitTests",
      "path" : "Tests/BivrostKitTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "Assets.swift",
        "ContractParserSpec.swift",
        "ContractTemplateModelSpec.swift",
        "ElementJsonParserSpec.swift",
        "ParameterParserSpec.swift"
      ],
      "target_dependencies" : [
        "BivrostKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BivrostKit",
      "module_type" : "SwiftTarget",
      "name" : "BivrostKit",
      "path" : "Sources/BivrostKit",
      "product_dependencies" : [
        "CryptoSwift",
        "BigInt",
        "Stencil",
        "StencilSwiftKit",
        "PathKit"
      ],
      "product_memberships" : [
        "bivrost",
        "BivrostKit"
      ],
      "sources" : [
        "BivrostKit.swift",
        "Generating/AuxWriter.swift",
        "Generating/ContractGenerator.swift",
        "Generating/ContractTemplateModel.swift",
        "Generating/ContractWriter.swift",
        "Generating/FileTool.swift",
        "Generating/SequenceExtension.swift",
        "Generating/Templates/ArrayXTemplate.swift",
        "Generating/Templates/BytesXTemplate.swift",
        "Generating/Templates/ContractTemplate.swift",
        "Generating/Templates/IntXTemplate.swift",
        "Generating/Templates/Templates.swift",
        "Generating/Templates/UIntXTemplate.swift",
        "Generating/TypeGenerator.swift",
        "Generating/TypeWriter.swift",
        "Parsing/AbiValidating.swift",
        "Parsing/Contract.swift",
        "Parsing/ContractParser.swift",
        "Parsing/ElementJsonParser.swift",
        "Parsing/JsonKey.swift",
        "Parsing/ParameterParser.swift",
        "Parsing/ParsingError.swift",
        "Parsing/StringExtension.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "BivrostHelperTests",
      "module_type" : "SwiftTarget",
      "name" : "BivrostHelperTests",
      "path" : "Tests/BivrostHelperTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "Assets.swift",
        "BaseDecoderSpec.swift",
        "SolidityTypesSpec.swift"
      ],
      "target_dependencies" : [
        "BivrostHelper"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BivrostHelper",
      "module_type" : "SwiftTarget",
      "name" : "BivrostHelper",
      "path" : "Sources/BivrostHelper",
      "product_dependencies" : [
        "BigInt"
      ],
      "product_memberships" : [
        "BivrostHelper"
      ],
      "sources" : [
        "BivrostError.swift",
        "Coding/BaseDecoder.swift",
        "Coding/BaseEncoder.swift",
        "Extensions/BigIntExtension.swift",
        "Extensions/DataExtension.swift",
        "Extensions/StringExtension.swift",
        "Generated Types/ArrayX-Generated.swift",
        "Generated Types/BytesX-Generated.swift",
        "Generated Types/IntX-Generated.swift",
        "Generated Types/UIntX-Generated.swift",
        "Protocols/DynamicType.swift",
        "Protocols/SolidityCodable.swift",
        "Protocols/SolidityFunction.swift",
        "Protocols/StaticType.swift",
        "Types/Address.swift",
        "Types/ArrayX.swift",
        "Types/Bool.swift",
        "Types/Bytes.swift",
        "Types/BytesX.swift",
        "Types/Function.swift",
        "Types/IntX.swift",
        "Types/Solidity.swift",
        "Types/String.swift",
        "Types/UIntX.swift",
        "Types/VariableArray.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Bivrost",
      "module_type" : "SwiftTarget",
      "name" : "Bivrost",
      "path" : "Sources/Bivrost",
      "product_dependencies" : [
        "Commander",
        "PathKit"
      ],
      "product_memberships" : [
        "bivrost"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "BivrostKit"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "4.0"
}
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
Building for debugging...
[0/17] Write sources
[2/17] Write bivrost-entitlement.plist
[2/17] Write sources
[11/17] Write swift-version-2F0A5646E1D333AE.txt
[13/93] Compiling Commander Group.swift
[14/93] Compiling Commander ArgumentParser.swift
[15/93] Compiling Commander ArgumentConvertible.swift
[16/93] Emitting module Commander
[17/93] Compiling Commander Commands.swift
[18/93] Compiling Commander Error.swift
[19/93] Compiling Commander CommandType.swift
[20/93] Compiling Commander Command.swift
[21/93] Compiling Commander CommandRunner.swift
[22/93] Compiling Commander ArgumentDescription.swift
[23/93] Compiling SipHash SipHasher.swift
[24/93] Emitting module CryptoSwift
[25/99] Compiling SipHash SipHashable.swift
[26/99] Compiling SipHash RandomUInt64.swift
[27/99] Emitting module SipHash
[28/99] Compiling SipHash Primitive Types.swift
[28/99] Write Objects.LinkFileList
[30/99] Compiling CryptoSwift Cipher.swift
[31/99] Compiling CryptoSwift Collection+Extension.swift
[32/99] Compiling CryptoSwift Cryptors.swift
[33/99] Compiling CryptoSwift Digest.swift
[34/99] Compiling CryptoSwift DigestType.swift
[35/99] Compiling CryptoSwift AES+Foundation.swift
[36/99] Compiling CryptoSwift Array+Foundation.swift
[37/99] Compiling CryptoSwift Utils+Foundation.swift
[38/99] Compiling CryptoSwift Generics.swift
[39/99] Compiling CryptoSwift HKDF.swift
[40/99] Compiling CryptoSwift HMAC.swift
[41/99] Compiling CryptoSwift Int+Extension.swift
[42/99] Compiling CryptoSwift MD5.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[43/99] Emitting module PathKit
<unknown>:0: error: invalid value '3' in '-swift-version 3'
<unknown>:0: note: valid arguments to '-swift-version' are '4', '4.2', '5', '6'
[44/99] Compiling PathKit PathKit.swift
<unknown>:0: error: invalid value '3' in '-swift-version 3'
<unknown>:0: note: valid arguments to '-swift-version' are '4', '4.2', '5', '6'
/Users/admin/builder/spi-builder-workspace/.build/checkouts/PathKit/Sources/PathKit.swift:45:34: error: 'characters' is unavailable: Please use String directly
 43 |     } else if components.first == Path.separator && components.count > 1 {
 44 |       let p = components.joined(separator: Path.separator)
 45 |       path = p.substring(from: p.characters.index(after: p.startIndex))
    |                                  `- error: 'characters' is unavailable: Please use String directly
 46 |     } else {
 47 |       path = components.joined(separator: Path.separator)
Swift.String.characters:3:14: note: 'characters' was obsoleted in Swift 5.0
1 | struct String {
2 | @available(swift, deprecated: 3.2, obsoleted: 5.0, message: "Please use String directly")
3 |   public var characters: String { get set }}
  |              `- note: 'characters' was obsoleted in Swift 5.0
4 |
[44/99] Linking libSipHash.dylib
[45/99] Compiling CryptoSwift PKCS7Padding.swift
[46/99] Compiling CryptoSwift Padding.swift
[47/99] Compiling CryptoSwift Poly1305.swift
[48/99] Compiling CryptoSwift Rabbit.swift
[49/99] Compiling CryptoSwift RandomAccessCryptor.swift
[50/99] Compiling CryptoSwift RandomBytesSequence.swift
[51/99] Compiling CryptoSwift NoPadding.swift
[52/99] Compiling CryptoSwift Operators.swift
[53/99] Compiling CryptoSwift PBKDF1.swift
[54/99] Compiling CryptoSwift PBKDF2.swift
[55/99] Compiling CryptoSwift PKCS5.swift
[56/99] Compiling CryptoSwift PKCS7.swift
[57/99] Compiling CryptoSwift Blowfish+Foundation.swift
[58/99] Compiling CryptoSwift ChaCha20+Foundation.swift
[59/99] Compiling CryptoSwift Data+Extension.swift
[60/99] Compiling CryptoSwift HMAC+Foundation.swift
[61/99] Compiling CryptoSwift Rabbit+Foundation.swift
[62/99] Compiling CryptoSwift String+FoundationExtension.swift
Updating https://github.com/kylef/Commander.git
Updated https://github.com/kylef/Commander.git (0.44s)
Updating https://github.com/PoissonBallon/PathKit.git
Updated https://github.com/PoissonBallon/PathKit.git (0.44s)
Updating https://github.com/zweigraf/Stencil.git
Updated https://github.com/zweigraf/Stencil.git (0.43s)
Updating https://github.com/zweigraf/StencilSwiftKit.git
Updated https://github.com/zweigraf/StencilSwiftKit.git (0.42s)
Updating https://github.com/kylef/Spectre.git
Updating https://github.com/Quick/Quick.git
Updating https://github.com/attaswift/BigInt.git
Updating https://github.com/Quick/Nimble.git
Updating https://github.com/krzyzanowskim/CryptoSwift
Updated https://github.com/kylef/Spectre.git (0.40s)
Updated https://github.com/krzyzanowskim/CryptoSwift (0.62s)
Updated https://github.com/attaswift/BigInt.git (0.62s)
Updated https://github.com/Quick/Nimble.git (0.62s)
Updated https://github.com/Quick/Quick.git (0.62s)
Computing version for https://github.com/kylef/Spectre.git
Computed https://github.com/kylef/Spectre.git at 0.8.0 (1.19s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 1.2.0 (0.56s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 7.0.3 (0.57s)
Computing version for https://github.com/attaswift/BigInt.git
Computed https://github.com/attaswift/BigInt.git at 3.1.0 (0.57s)
Updating https://github.com/attaswift/SipHash
Updated https://github.com/attaswift/SipHash (0.39s)
Computing version for https://github.com/attaswift/SipHash
Computed https://github.com/attaswift/SipHash at 1.2.2 (0.99s)
Computing version for https://github.com/krzyzanowskim/CryptoSwift
Computed https://github.com/krzyzanowskim/CryptoSwift at 0.8.3 (0.57s)
Creating working copy for https://github.com/zweigraf/Stencil.git
Working copy of https://github.com/zweigraf/Stencil.git resolved at master (2bcdbd3)
Creating working copy for https://github.com/attaswift/SipHash
Working copy of https://github.com/attaswift/SipHash resolved at 1.2.2
Creating working copy for https://github.com/kylef/Spectre.git
Working copy of https://github.com/kylef/Spectre.git resolved at 0.8.0
Creating working copy for https://github.com/krzyzanowskim/CryptoSwift
Working copy of https://github.com/krzyzanowskim/CryptoSwift resolved at 0.8.3
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 7.0.3
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 1.2.0
Creating working copy for https://github.com/kylef/Commander.git
Working copy of https://github.com/kylef/Commander.git resolved at e0cbee1bd73778c1076c675eaf660e97d09f3b32
Creating working copy for https://github.com/attaswift/BigInt.git
Working copy of https://github.com/attaswift/BigInt.git resolved at 3.1.0
Creating working copy for https://github.com/zweigraf/StencilSwiftKit.git
Working copy of https://github.com/zweigraf/StencilSwiftKit.git resolved at 82a0099e5c446348692a2ba40ffbba980c6b8898
Creating working copy for https://github.com/PoissonBallon/PathKit.git
Working copy of https://github.com/PoissonBallon/PathKit.git resolved at master (a73cc01)
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/6] Write swift-version-2F0A5646E1D333AE.txt
[2/82] Compiling Commander ArgumentParser.swift
[3/82] Compiling Commander ArgumentConvertible.swift
[4/82] Emitting module Commander
[5/82] Compiling Commander ArgumentDescription.swift
[6/82] Compiling Commander Error.swift
[7/82] Compiling Commander Commands.swift
[8/82] Compiling Commander Command.swift
[9/82] Compiling Commander CommandRunner.swift
[10/82] Compiling Commander CommandType.swift
[11/82] Compiling Commander Group.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/82] Emitting module PathKit
<unknown>:0: error: invalid value '3' in '-swift-version 3'
<unknown>:0: note: valid arguments to '-swift-version' are '4', '4.2', '5', '6'
[13/82] Compiling PathKit PathKit.swift
<unknown>:0: error: invalid value '3' in '-swift-version 3'
<unknown>:0: note: valid arguments to '-swift-version' are '4', '4.2', '5', '6'
/Users/admin/builder/spi-builder-workspace/.build/checkouts/PathKit/Sources/PathKit.swift:45:34: error: 'characters' is unavailable: Please use String directly
 43 |     } else if components.first == Path.separator && components.count > 1 {
 44 |       let p = components.joined(separator: Path.separator)
 45 |       path = p.substring(from: p.characters.index(after: p.startIndex))
    |                                  `- error: 'characters' is unavailable: Please use String directly
 46 |     } else {
 47 |       path = components.joined(separator: Path.separator)
Swift.String.characters:3:14: note: 'characters' was obsoleted in Swift 5.0
1 | struct String {
2 | @available(swift, deprecated: 3.2, obsoleted: 5.0, message: "Please use String directly")
3 |   public var characters: String { get set }}
  |              `- note: 'characters' was obsoleted in Swift 5.0
4 |
BUILD FAILURE 6.1 macosSpm