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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 TypoChecker, reference 0.0.7 (e868d7), with Swift 6.1 for Linux on 25 Apr 2025 20:48:09 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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/t-osawa-009/TypoChecker.git
Reference: 0.0.7
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/t-osawa-009/TypoChecker
 * tag               0.0.7      -> FETCH_HEAD
HEAD is now at e868d7a 👍: ReportTypeのdefaultをjsonにする
Cloned https://github.com/t-osawa-009/TypoChecker.git
Revision (git rev-parse @):
e868d7a4162e5c167d746b8f276a13b13f06d6a6
SUCCESS checkout https://github.com/t-osawa-009/TypoChecker.git at 0.0.7
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/t-osawa-009/TypoChecker.git
https://github.com/t-osawa-009/TypoChecker.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-uniyaml",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.11.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/seznam/swift-uniyaml.git"
    },
    {
      "identity" : "files",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.3.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/JohnSundell/Files.git"
    }
  ],
  "manifest_display_name" : "TypoChecker",
  "name" : "TypoChecker",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TypoChecker",
      "targets" : [
        "TypoChecker"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TypoCheckerTests",
      "module_type" : "SwiftTarget",
      "name" : "TypoCheckerTests",
      "path" : "Tests/TypoCheckerTests",
      "sources" : [
        "TypoCheckerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "TypoChecker"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TypoChecker",
      "module_type" : "SwiftTarget",
      "name" : "TypoChecker",
      "path" : "Sources/TypoChecker",
      "product_dependencies" : [
        "UniYAML",
        "Files"
      ],
      "product_memberships" : [
        "TypoChecker"
      ],
      "sources" : [
        "Analytics.swift",
        "AnalyticsNamingTypo.swift",
        "AnalyticsStringTypo.swift",
        "ArgumentParser/ArgumentParser.swift",
        "Configuration.swift",
        "Report/JSONReport.swift",
        "Report/MarkdownReport.swift",
        "Report/ReportGenerator.swift",
        "Report/ReportOutputer.swift",
        "Report/Reportable.swift",
        "Report/XcodeReport.swift",
        "YAMLParser.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "4.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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/seznam/swift-uniyaml.git
Fetching https://github.com/JohnSundell/Files.git
[1/1236] Fetching files
[236/1443] Fetching files, swift-uniyaml
Fetched https://github.com/seznam/swift-uniyaml.git from cache (0.26s)
Fetched https://github.com/JohnSundell/Files.git from cache (0.28s)
Computing version for https://github.com/JohnSundell/Files.git
Computed https://github.com/JohnSundell/Files.git at 2.3.0 (3.17s)
Computing version for https://github.com/seznam/swift-uniyaml.git
Computed https://github.com/seznam/swift-uniyaml.git at 0.12.0 (3.04s)
Creating working copy for https://github.com/JohnSundell/Files.git
Working copy of https://github.com/JohnSundell/Files.git resolved at 2.3.0
Creating working copy for https://github.com/seznam/swift-uniyaml.git
Working copy of https://github.com/seznam/swift-uniyaml.git resolved at 0.12.0
Building for debugging...
[0/9] Write sources
[3/9] Write swift-version-24593BA9C3E375BF.txt
[5/15] Compiling UniYAML YAML.swift
/host/spi-builder-workspace/.build/checkouts/swift-uniyaml/Sources/UniYAML/YAML.swift:218:12: error: cannot assign to property: 'key' is a 'let' constant
 34 | 	let indent: Int
 35 | 	var type: YAMLType
 36 | 	let key: String?
    |  `- note: change 'let' to 'var' to make it mutable
 37 | 	let tag: String?
 38 | 	var value: Any?
    :
216 | 				return nil
217 | 			}
218 | 			obj[k]!.key = k
    |            `- error: cannot assign to property: 'key' is a 'let' constant
219 | 		}
220 | 		indent = 0
[6/15] Compiling UniYAML Decoder.swift
[7/15] Compiling UniYAML Encoder.swift
[8/15] Emitting module UniYAML
[9/15] Emitting module Files
[10/15] Compiling Files Files.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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
Building for debugging...
[0/6] Write swift-version-24593BA9C3E375BF.txt
[2/12] Compiling UniYAML YAML.swift
/host/spi-builder-workspace/.build/checkouts/swift-uniyaml/Sources/UniYAML/YAML.swift:218:12: error: cannot assign to property: 'key' is a 'let' constant
 34 | 	let indent: Int
 35 | 	var type: YAMLType
 36 | 	let key: String?
    |  `- note: change 'let' to 'var' to make it mutable
 37 | 	let tag: String?
 38 | 	var value: Any?
    :
216 | 				return nil
217 | 			}
218 | 			obj[k]!.key = k
    |            `- error: cannot assign to property: 'key' is a 'let' constant
219 | 		}
220 | 		indent = 0
[3/12] Compiling UniYAML Encoder.swift
[4/12] Emitting module UniYAML
[5/12] Compiling UniYAML Decoder.swift
[6/12] Emitting module Files
BUILD FAILURE 6.1 linux