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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 TextBuilder, reference main (65b7c7), with Swift 6.1 for Linux on 27 Apr 2025 21:45:26 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/davdroman/TextBuilder.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/davdroman/TextBuilder
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 65b7c7b Update dependencies (#25)
Cloned https://github.com/davdroman/TextBuilder.git
Revision (git rev-parse @):
65b7c7bb9b163f4fc2d755c52a89a6f3040300df
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/davdroman/TextBuilder.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/davdroman/TextBuilder.git
https://github.com/davdroman/TextBuilder.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-benchmark",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.1.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/google/swift-benchmark"
    },
    {
      "identity" : "swift-builders",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.5.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/davdroman/swift-builders"
    },
    {
      "identity" : "swift-custom-dump",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-custom-dump"
    }
  ],
  "manifest_display_name" : "TextBuilder",
  "name" : "TextBuilder",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "TextBuilder",
      "targets" : [
        "TextBuilder"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Benchmarks",
      "targets" : [
        "Benchmarks"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TextBuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilderTests",
      "path" : "Tests/TextBuilderTests",
      "product_dependencies" : [
        "BuildersTestSupport",
        "CustomDump"
      ],
      "sources" : [
        "TextBuilderTests.swift",
        "TextExtensionsTests.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TextBuilder",
      "module_type" : "SwiftTarget",
      "name" : "TextBuilder",
      "path" : "Sources/TextBuilder",
      "product_dependencies" : [
        "Builders"
      ],
      "product_memberships" : [
        "TextBuilder",
        "Benchmarks"
      ],
      "sources" : [
        "TextBuilder.swift",
        "TextBuilderSeparator.swift",
        "TextExtensions.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Benchmarks",
      "module_type" : "SwiftTarget",
      "name" : "Benchmarks",
      "path" : "Sources/Benchmarks",
      "product_dependencies" : [
        "Benchmark",
        "BuildersTestSupport"
      ],
      "product_memberships" : [
        "Benchmarks"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "TextBuilder"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/pointfreeco/swift-custom-dump
Fetching https://github.com/davdroman/swift-builders
Fetching https://github.com/google/swift-benchmark
[1/1486] Fetching swift-benchmark
[224/6067] Fetching swift-benchmark, swift-custom-dump
[526/6590] Fetching swift-benchmark, swift-custom-dump, swift-builders
Fetched https://github.com/google/swift-benchmark from cache (0.32s)
Fetched https://github.com/davdroman/swift-builders from cache (0.32s)
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (0.32s)
Computing version for https://github.com/google/swift-benchmark
Computed https://github.com/google/swift-benchmark at 0.1.2 (1.49s)
Fetching https://github.com/apple/swift-argument-parser
[1/14950] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.00s)
Computing version for https://github.com/davdroman/swift-builders
Computed https://github.com/davdroman/swift-builders at 0.7.0 (4.28s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.3.3 (1.01s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/5388] Fetching xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (1.14s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.5.2 (1.83s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.52s)
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.3.3
Creating working copy for https://github.com/davdroman/swift-builders
Working copy of https://github.com/davdroman/swift-builders resolved at 0.7.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.5.0
Creating working copy for https://github.com/google/swift-benchmark
Working copy of https://github.com/google/swift-benchmark resolved at 0.1.2
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.5.2
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/18] Write sources
[8/18] Write swift-version-24593BA9C3E375BF.txt
[10/26] Emitting module BuildersTestSupport
[11/26] Compiling BuildersTestSupport BuildersTestSupport.swift
[12/27] Emitting module ArgumentParserToolInfo
[13/27] Compiling ArgumentParserToolInfo ToolInfo.swift
[15/28] Wrapping AST for BuildersTestSupport for debugging
[16/28] Wrapping AST for ArgumentParserToolInfo for debugging
[18/66] Compiling ArgumentParser OptionGroup.swift
[19/66] Compiling ArgumentParser AsyncParsableCommand.swift
[20/66] Compiling ArgumentParser CommandConfiguration.swift
[21/66] Compiling ArgumentParser CommandGroup.swift
[22/66] Compiling ArgumentParser EnumerableFlag.swift
[23/71] Emitting module ArgumentParser
[24/71] Compiling ArgumentParser BashCompletionsGenerator.swift
[25/71] Compiling ArgumentParser CompletionsGenerator.swift
[26/71] Compiling ArgumentParser FishCompletionsGenerator.swift
[27/71] Compiling ArgumentParser ZshCompletionsGenerator.swift
[28/71] Compiling ArgumentParser Argument.swift
[29/71] Compiling ArgumentParser ArgumentHelp.swift
[30/71] Compiling ArgumentParser ArgumentVisibility.swift
[31/71] Compiling ArgumentParser CompletionKind.swift
[32/71] Compiling ArgumentParser Errors.swift
[33/71] Compiling ArgumentParser Flag.swift
[34/71] Compiling ArgumentParser NameSpecification.swift
[35/71] Compiling ArgumentParser Option.swift
[36/71] Compiling ArgumentParser CollectionExtensions.swift
[37/71] Compiling ArgumentParser Platform.swift
[38/71] Compiling ArgumentParser SequenceExtensions.swift
[39/71] Compiling ArgumentParser StringExtensions.swift
[40/71] Compiling ArgumentParser Tree.swift
[41/71] Compiling Builders _AppendableCollectionBuilder.swift
[42/71] Compiling Builders _AppendableCollection.swift
[43/71] Emitting module Builders
[44/71] Compiling Builders Typealiases.swift
[45/72] Wrapping AST for Builders for debugging
error: emit-module command failed with exit code 1 (use -v to see invocation)
[47/76] Emitting module TextBuilder
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[48/76] Compiling ArgumentParser Name.swift
[49/76] Compiling ArgumentParser Parsed.swift
[50/76] Compiling ArgumentParser ParsedValues.swift
[51/76] Compiling ArgumentParser ParserError.swift
[52/76] Compiling ArgumentParser SplitArguments.swift
[53/76] Compiling ArgumentParser DumpHelpGenerator.swift
[54/76] Compiling ArgumentParser HelpCommand.swift
[55/76] Compiling ArgumentParser HelpGenerator.swift
[56/76] Compiling ArgumentParser MessageInfo.swift
[57/76] Compiling ArgumentParser UsageGenerator.swift
[58/76] Compiling TextBuilder TextBuilder.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[59/76] Compiling TextBuilder TextExtensions.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[60/76] Compiling TextBuilder TextBuilderSeparator.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[61/76] Compiling ArgumentParser ExpressibleByArgument.swift
[62/76] Compiling ArgumentParser ParsableArguments.swift
[63/76] Compiling ArgumentParser ParsableArgumentsValidation.swift
[64/76] Compiling ArgumentParser ParsableCommand.swift
[65/76] Compiling ArgumentParser ArgumentDecoder.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/11] Write swift-version-24593BA9C3E375BF.txt
[3/19] Compiling BuildersTestSupport BuildersTestSupport.swift
[4/19] Emitting module BuildersTestSupport
[5/20] Compiling Builders _AppendableCollectionBuilder.swift
[7/19] Compiling Builders Typealiases.swift
[8/19] Emitting module Builders
[9/19] Compiling Builders _AppendableCollection.swift
[11/23] Emitting module ArgumentParserToolInfo
[12/23] Compiling ArgumentParserToolInfo ToolInfo.swift
[14/24] Compiling TextBuilder TextExtensions.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
error: emit-module command failed with exit code 1 (use -v to see invocation)
[15/24] Compiling TextBuilder TextBuilderSeparator.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[16/24] Emitting module TextBuilder
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
[17/24] Compiling TextBuilder TextBuilder.swift
/host/spi-builder-workspace/Sources/TextBuilder/TextBuilder.swift:1:8: error: no such module 'SwiftUI'
 1 | import SwiftUI
   |        `- error: no such module 'SwiftUI'
 2 |
 3 | /// A custom attribute that constructs combined text views.
BUILD FAILURE 6.1 linux