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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 swift-tts, reference main (9e74c8), with Swift 6.1 for Linux on 27 Apr 2025 11:07:03 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/renaudjenny/swift-tts.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/renaudjenny/swift-tts
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 9e74c8f docs(README): add badges
Cloned https://github.com/renaudjenny/swift-tts.git
Revision (git rev-parse @):
9e74c8faf2fbd5f9caf31c25cf07d6f7cd3d1e29
SUCCESS checkout https://github.com/renaudjenny/swift-tts.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/renaudjenny/swift-tts.git
https://github.com/renaudjenny/swift-tts.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-dependencies",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-dependencies"
    }
  ],
  "manifest_display_name" : "swift-tts",
  "name" : "swift-tts",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftTTS",
      "targets" : [
        "SwiftTTS"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SwiftTTSDependency",
      "targets" : [
        "SwiftTTSDependency"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SwiftTTSCombine",
      "targets" : [
        "SwiftTTSCombine"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftTTSTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftTTSTests",
      "path" : "Tests/SwiftTTSTests",
      "sources" : [
        "SwiftTTSTests.swift"
      ],
      "target_dependencies" : [
        "SwiftTTS"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftTTSDependency",
      "module_type" : "SwiftTarget",
      "name" : "SwiftTTSDependency",
      "path" : "Sources/SwiftTTSDependency",
      "product_dependencies" : [
        "Dependencies"
      ],
      "product_memberships" : [
        "SwiftTTSDependency"
      ],
      "sources" : [
        "SwiftTTSDependency.swift"
      ],
      "target_dependencies" : [
        "SwiftTTS"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SwiftTTSCombine",
      "module_type" : "SwiftTarget",
      "name" : "SwiftTTSCombine",
      "path" : "Sources/SwiftTTSCombine",
      "product_memberships" : [
        "SwiftTTSCombine"
      ],
      "sources" : [
        "SwiftTTSCombine.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SwiftTTS",
      "module_type" : "SwiftTarget",
      "name" : "SwiftTTS",
      "path" : "Sources/SwiftTTS",
      "product_memberships" : [
        "SwiftTTS",
        "SwiftTTSDependency"
      ],
      "sources" : [
        "SwiftTTS.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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-dependencies
[1/6201] Fetching swift-dependencies
Fetched https://github.com/pointfreeco/swift-dependencies from cache (0.73s)
Computing version for https://github.com/pointfreeco/swift-dependencies
Computed https://github.com/pointfreeco/swift-dependencies at 0.6.0 (1.70s)
Fetching https://github.com/pointfreeco/combine-schedulers
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
Fetching https://github.com/pointfreeco/swift-concurrency-extras
[1/2410] Fetching combine-schedulers
[1110/3262] Fetching combine-schedulers, swift-concurrency-extras
[3263/8650] Fetching combine-schedulers, swift-concurrency-extras, xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (0.46s)
[3596/7798] Fetching combine-schedulers, xctest-dynamic-overlay
Fetching https://github.com/pointfreeco/swift-clocks
[6021/9090] Fetching combine-schedulers, xctest-dynamic-overlay, swift-clocks
Fetched https://github.com/pointfreeco/swift-clocks from cache (0.51s)
Fetched https://github.com/pointfreeco/combine-schedulers from cache (1.33s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (1.34s)
Computing version for https://github.com/pointfreeco/swift-clocks
Computed https://github.com/pointfreeco/swift-clocks at 0.4.0 (3.75s)
Computing version for https://github.com/pointfreeco/combine-schedulers
Computed https://github.com/pointfreeco/combine-schedulers at 0.11.0 (1.07s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 0.1.2 (1.06s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 0.9.0 (0.68s)
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 0.4.0
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 0.9.0
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 0.11.0
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 0.1.2
Creating working copy for https://github.com/pointfreeco/swift-dependencies
Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 0.6.0
Building for debugging...
[0/9] Write sources
[8/9] Write swift-version-24593BA9C3E375BF.txt
[10/29] Emitting module ConcurrencyExtras
[11/30] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[12/31] Compiling ConcurrencyExtras UncheckedSendable.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[13/31] Emitting module SwiftTTS
/host/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:5:8: error: no such module 'AVFoundation'
  3 | #endif
  4 |
  5 | import AVFoundation
    |        `- error: no such module 'AVFoundation'
  6 |
  7 | public struct SwiftTTS {
[14/31] Compiling SwiftTTS SwiftTTS.swift
/host/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:5:8: error: no such module 'AVFoundation'
  3 | #endif
  4 |
  5 | import AVFoundation
    |        `- error: no such module 'AVFoundation'
  6 |
  7 | public struct SwiftTTS {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[15/31] Emitting module SwiftTTSCombine
/host/spi-builder-workspace/Sources/SwiftTTSCombine/SwiftTTSCombine.swift:6:8: error: no such module 'Combine'
 4 |
 5 | import Foundation
 6 | import Combine
   |        `- error: no such module 'Combine'
 7 | import AVFoundation
 8 |
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/21] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[3/22] Compiling ConcurrencyExtras ActorIsolated.swift
[4/23] Compiling XCTestDynamicOverlay GeneratePlaceholder.swift
[5/23] Compiling ConcurrencyExtras UncheckedSendable.swift
[6/23] Compiling XCTestDynamicOverlay Deprecations.swift
[7/23] Compiling XCTestDynamicOverlay Unimplemented.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/23] Emitting module SwiftTTSCombine
/host/spi-builder-workspace/Sources/SwiftTTSCombine/SwiftTTSCombine.swift:6:8: error: no such module 'Combine'
 4 |
 5 | import Foundation
 6 | import Combine
   |        `- error: no such module 'Combine'
 7 | import AVFoundation
 8 |
[9/23] Compiling SwiftTTSCombine SwiftTTSCombine.swift
/host/spi-builder-workspace/Sources/SwiftTTSCombine/SwiftTTSCombine.swift:6:8: error: no such module 'Combine'
 4 |
 5 | import Foundation
 6 | import Combine
   |        `- error: no such module 'Combine'
 7 | import AVFoundation
 8 |
[10/23] Compiling XCTestDynamicOverlay XCTFail.swift
[11/23] Compiling ConcurrencyExtras AsyncThrowingStream.swift
[12/23] Compiling ConcurrencyExtras Locking.swift
[13/23] Compiling XCTestDynamicOverlay RuntimeWarnings.swift
[14/23] Compiling XCTestDynamicOverlay XCTIsTesting.swift
[15/23] Compiling ConcurrencyExtras MainSerialExecutor.swift
[16/23] Compiling ConcurrencyExtras Task.swift
[17/23] Compiling ConcurrencyExtras LockIsolated.swift
[18/23] Emitting module ConcurrencyExtras
[19/23] Compiling ConcurrencyExtras AsyncStream.swift
[20/24] Emitting module XCTestDynamicOverlay
[21/24] Compiling XCTestDynamicOverlay DefaultInitializable.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[24/25] Emitting module SwiftTTS
/host/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:5:8: error: no such module 'AVFoundation'
  3 | #endif
  4 |
  5 | import AVFoundation
    |        `- error: no such module 'AVFoundation'
  6 |
  7 | public struct SwiftTTS {
[25/25] Compiling SwiftTTS SwiftTTS.swift
/host/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:5:8: error: no such module 'AVFoundation'
  3 | #endif
  4 |
  5 | import AVFoundation
    |        `- error: no such module 'AVFoundation'
  6 |
  7 | public struct SwiftTTS {
BUILD FAILURE 6.1 linux