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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

Successful build of ProgressSpinnerKit, reference main (33ff37), with Swift 6.0 for macOS (SPM) on 17 Mar 2025 15:32:41 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/yutailang0119/progressspinnerkit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/yutailang0119/progressspinnerkit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 33ff37d Merge pull request #61 from yutailang0119/swift-tools-support-core
Cloned https://github.com/yutailang0119/progressspinnerkit.git
Revision (git rev-parse @):
33ff37dc1cccc9a9af7d18fcc0088c5a759f2697
SUCCESS checkout https://github.com/yutailang0119/progressspinnerkit.git at main
Fetching https://github.com/swiftlang/swift-tools-support-core
[1/6669] Fetching swift-tools-support-core
Fetched https://github.com/swiftlang/swift-tools-support-core from cache (1.33s)
Computing version for https://github.com/swiftlang/swift-tools-support-core.git
Computed https://github.com/swiftlang/swift-tools-support-core.git at 0.7.2 (3.26s)
Creating working copy for https://github.com/swiftlang/swift-tools-support-core
Working copy of https://github.com/swiftlang/swift-tools-support-core resolved at 0.7.2
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "progressspinnerkit",
      "name": "ProgressSpinnerKit",
      "url": "https://github.com/yutailang0119/progressspinnerkit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/progressspinnerkit",
      "dependencies": [
        {
          "identity": "swift-tools-support-core",
          "name": "swift-tools-support-core",
          "url": "https://github.com/swiftlang/swift-tools-support-core.git",
          "version": "0.7.2",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-tools-support-core",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/yutailang0119/progressspinnerkit.git
[1/575] Fetching progressspinnerkit
Fetched https://github.com/yutailang0119/progressspinnerkit.git from cache (0.93s)
Fetching https://github.com/swiftlang/swift-tools-support-core.git from cache
Fetched https://github.com/swiftlang/swift-tools-support-core.git from cache (0.82s)
Computing version for https://github.com/swiftlang/swift-tools-support-core.git
Computed https://github.com/swiftlang/swift-tools-support-core.git at 0.7.2 (0.56s)
Creating working copy for https://github.com/swiftlang/swift-tools-support-core.git
Working copy of https://github.com/swiftlang/swift-tools-support-core.git resolved at 0.7.2
Creating working copy for https://github.com/yutailang0119/progressspinnerkit.git
Working copy of https://github.com/yutailang0119/progressspinnerkit.git resolved at main (33ff37d)
warning: '.resolve-product-dependencies': dependency 'progressspinnerkit' is not used by any target
Found 1 product dependencies
  - swift-tools-support-core
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/yutailang0119/progressspinnerkit.git
https://github.com/yutailang0119/progressspinnerkit.git
{
  "dependencies" : [
    {
      "identity" : "swift-tools-support-core",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.7.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-tools-support-core.git"
    }
  ],
  "manifest_display_name" : "ProgressSpinnerKit",
  "name" : "ProgressSpinnerKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "ProgressSpinnerKit",
      "targets" : [
        "ProgressSpinnerKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "demo",
      "targets" : [
        "demo"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "demo",
      "module_type" : "SwiftTarget",
      "name" : "demo",
      "path" : "Sources/demo",
      "product_memberships" : [
        "demo"
      ],
      "sources" : [
        "Demo.swift"
      ],
      "target_dependencies" : [
        "ProgressSpinnerKit"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ProgressSpinnerKitTests",
      "module_type" : "SwiftTarget",
      "name" : "ProgressSpinnerKitTests",
      "path" : "Tests/ProgressSpinnerKitTests",
      "sources" : [
        "ProgressSpinnerTests.swift"
      ],
      "target_dependencies" : [
        "ProgressSpinnerKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ProgressSpinnerKit",
      "module_type" : "SwiftTarget",
      "name" : "ProgressSpinnerKit",
      "path" : "Sources/ProgressSpinnerKit",
      "product_dependencies" : [
        "SwiftToolsSupport"
      ],
      "product_memberships" : [
        "ProgressSpinnerKit",
        "demo"
      ],
      "sources" : [
        "ProgressSpinner.swift",
        "Spinner.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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...
[0/14] Write sources
[1/14] Write demo-entitlement.plist
[3/14] Write sources
[6/14] Compiling TSCclibc libc.c
[7/14] Compiling TSCclibc process.c
[8/14] Write swift-version-5BDAB9E9C0126B9D.txt
[10/16] Emitting module TSCLibc
[11/16] Compiling TSCLibc libc.swift
[12/57] Compiling TSCBasic OSLog.swift
[13/57] Compiling TSCBasic ObjectIdentifierProtocol.swift
[14/57] Compiling TSCBasic OrderedDictionary.swift
[15/57] Compiling TSCBasic OrderedSet.swift
[16/61] Emitting module TSCBasic
[17/61] Compiling TSCBasic DeltaAlgorithm.swift
[18/61] Compiling TSCBasic DiagnosticsEngine.swift
[19/61] Compiling TSCBasic DictionaryExtensions.swift
[20/61] Compiling TSCBasic DictionaryLiteralExtensions.swift
[21/61] Compiling TSCBasic EditDistance.swift
[22/61] Compiling TSCBasic Closable.swift
[23/61] Compiling TSCBasic CodableResult.swift
[24/61] Compiling TSCBasic CollectionAlgorithms.swift
[25/61] Compiling TSCBasic CollectionExtensions.swift
[26/61] Compiling TSCBasic Condition.swift
[27/61] Compiling TSCBasic JSONMapper.swift
[28/61] Compiling TSCBasic KeyedPair.swift
[29/61] Compiling TSCBasic LazyCache.swift
[30/61] Compiling TSCBasic Lock.swift
[31/61] Compiling TSCBasic Await.swift
[32/61] Compiling TSCBasic Base64URL.swift
[33/61] Compiling TSCBasic ByteString.swift
[34/61] Compiling TSCBasic CStringArray.swift
[35/61] Compiling TSCBasic CacheableSequence.swift
[36/61] Compiling TSCBasic ProcessSet.swift
[37/61] Compiling TSCBasic RegEx.swift
[38/61] Compiling TSCBasic Result.swift
[39/61] Compiling TSCBasic SortedArray.swift
[40/61] Compiling TSCBasic StringConversions.swift
[41/61] Compiling TSCBasic SynchronizedQueue.swift
[42/61] Compiling TSCBasic TemporaryFile.swift
[43/61] Compiling TSCBasic TerminalController.swift
[44/61] Compiling TSCBasic Path.swift
[45/61] Compiling TSCBasic PathShims.swift
[46/61] Compiling TSCBasic Process.swift
[47/61] Compiling TSCBasic ProcessEnv.swift
[48/61] Compiling TSCBasic Thread.swift
[49/61] Compiling TSCBasic Tuple.swift
[50/61] Compiling TSCBasic WritableByteStream.swift
[51/61] Compiling TSCBasic misc.swift
[52/61] Compiling TSCBasic FileInfo.swift
[53/61] Compiling TSCBasic FileSystem.swift
[54/61] Compiling TSCBasic GraphAlgorithms.swift
[55/61] Compiling TSCBasic HashAlgorithms.swift
[56/61] Compiling TSCBasic JSON.swift
[57/97] Compiling TSCUtility OSLog.swift
[58/97] Compiling TSCUtility OrderedZip.swift
[59/97] Compiling TSCUtility PkgConfig.swift
[60/97] Compiling TSCUtility Platform.swift
[61/100] Compiling TSCUtility URL.swift
[62/100] Compiling TSCUtility Verbosity.swift
[63/100] Compiling TSCUtility Version.swift
[64/100] Compiling TSCUtility PolymorphicCodable.swift
[65/100] Compiling TSCUtility ProgressAnimation.swift
[66/100] Compiling TSCUtility SerializedDiagnostics.swift
[67/100] Compiling TSCUtility SimplePersistence.swift
[68/100] Compiling TSCUtility Versioning.swift
[69/100] Compiling TSCUtility dlopen.swift
[70/100] Compiling TSCUtility misc.swift
[71/100] Emitting module TSCUtility
[72/100] Compiling TSCUtility StringExtensions.swift
[73/100] Compiling TSCUtility StringMangling.swift
[74/100] Compiling TSCUtility Tracing.swift
[75/100] Compiling TSCUtility Triple.swift
[76/100] Compiling TSCUtility FSWatch.swift
[77/100] Compiling TSCUtility FloatingPointExtensions.swift
[78/100] Compiling TSCUtility Git.swift
[79/100] Compiling TSCUtility Hex.swift
[80/100] Compiling TSCUtility Archiver.swift
[81/100] Compiling TSCUtility ArgumentParser.swift
[82/100] Compiling TSCUtility ArgumentParserShellCompletion.swift
[83/100] Compiling TSCUtility Array+Extensions.swift
[84/100] Compiling TSCUtility IndexStore.swift
[85/100] Compiling TSCUtility InterruptHandler.swift
[86/100] Compiling TSCUtility JSONMessageStreamingParser.swift
[87/100] Compiling TSCUtility Netrc.swift
[88/100] Compiling TSCUtility BuildFlags.swift
[89/100] Compiling TSCUtility CollectionExtensions.swift
[90/100] Compiling TSCUtility Context.swift
[91/100] Compiling TSCUtility Diagnostics.swift
[92/100] Compiling TSCUtility Bits.swift
[93/100] Compiling TSCUtility Bitstream.swift
[94/100] Compiling TSCUtility BitstreamReader.swift
[95/100] Compiling TSCUtility BitstreamWriter.swift
[95/100] Write Objects.LinkFileList
[96/100] Linking libSwiftToolsSupport.dylib
[98/103] Compiling ProgressSpinnerKit Spinner.swift
[99/103] Emitting module ProgressSpinnerKit
[100/103] Compiling ProgressSpinnerKit ProgressSpinner.swift
[101/105] Emitting module demo
[102/105] Compiling demo Demo.swift
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:22:77: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 20 |
 21 |     do {
 22 |       let defaultSpinner = ProgressSpinnerKit.progressSpinner(for: TSCBasic.stderrStream, header: " default:")
    |                                                                             `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 23 |       await run(with: defaultSpinner)
 24 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:28:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 26 |     do {
 27 |       let box1 = ProgressSpinnerKit.progressSpinner(
 28 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 29 |         header: " box1:",
 30 |         spinner: Spinner(kind: .box1)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:37:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 35 |     do {
 36 |       let box2 = ProgressSpinnerKit.progressSpinner(
 37 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 38 |         header: " box2:",
 39 |         spinner: Spinner(kind: .box2)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:46:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 44 |     do {
 45 |       let box3 = ProgressSpinnerKit.progressSpinner(
 46 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 47 |         header: " box3:",
 48 |         spinner: Spinner(kind: .box3)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:55:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 53 |     do {
 54 |       let box4 = ProgressSpinnerKit.progressSpinner(
 55 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 56 |         header: " box4:",
 57 |         spinner: Spinner(kind: .box4)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:64:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 62 |     do {
 63 |       let box5 = ProgressSpinnerKit.progressSpinner(
 64 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 65 |         header: " box5:",
 66 |         spinner: Spinner(kind: .box5)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:73:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 71 |     do {
 72 |       let box6 = ProgressSpinnerKit.progressSpinner(
 73 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 74 |         header: " box6:",
 75 |         spinner: Spinner(kind: .box6)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:82:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 80 |     do {
 81 |       let box7 = ProgressSpinnerKit.progressSpinner(
 82 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 83 |         header: " box7:",
 84 |         spinner: Spinner(kind: .box7)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:91:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 89 |     do {
 90 |       let bar1 = ProgressSpinnerKit.progressSpinner(
 91 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 92 |         header: " bar1:",
 93 |         spinner: Spinner(kind: .bar1)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:100:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 98 |     do {
 99 |       let bar2 = ProgressSpinnerKit.progressSpinner(
100 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
101 |         header: " bar2:",
102 |         spinner: Spinner(kind: .bar2)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:109:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
107 |     do {
108 |       let bar3 = ProgressSpinnerKit.progressSpinner(
109 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
110 |         header: " bar3:",
111 |         spinner: Spinner(kind: .bar3)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:118:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
116 |     do {
117 |       let bar4 = ProgressSpinnerKit.progressSpinner(
118 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
119 |         header: " bar4:",
120 |         spinner: Spinner(kind: .bar4)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:127:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
125 |     do {
126 |       let bar5 = ProgressSpinnerKit.progressSpinner(
127 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
128 |         header: " bar5:",
129 |         spinner: Spinner(kind: .bar5)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:136:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
134 |     do {
135 |       let bar6 = ProgressSpinnerKit.progressSpinner(
136 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
137 |         header: " bar6:",
138 |         spinner: Spinner(kind: .bar6)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:145:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
143 |     do {
144 |       let spin1 = ProgressSpinnerKit.progressSpinner(
145 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
146 |         header: " spin1:",
147 |         spinner: Spinner(kind: .spin1)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:154:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
152 |     do {
153 |       let spin2 = ProgressSpinnerKit.progressSpinner(
154 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
155 |         header: " spin2:",
156 |         spinner: Spinner(kind: .spin2)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:163:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
161 |     do {
162 |       let spin3 = ProgressSpinnerKit.progressSpinner(
163 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
164 |         header: " spin3:",
165 |         spinner: Spinner(kind: .spin3)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:172:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
170 |     do {
171 |       let spin4 = ProgressSpinnerKit.progressSpinner(
172 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
173 |         header: " spin4:",
174 |         spinner: Spinner(kind: .spin4)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:181:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
179 |     do {
180 |       let spin5 = ProgressSpinnerKit.progressSpinner(
181 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
182 |         header: " spin5:",
183 |         spinner: Spinner(kind: .spin5)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:190:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
188 |     do {
189 |       let spin6 = ProgressSpinnerKit.progressSpinner(
190 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
191 |         header: " spin6:",
192 |         spinner: Spinner(kind: .spin6)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:199:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
197 |     do {
198 |       let spin7 = ProgressSpinnerKit.progressSpinner(
199 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
200 |         header: " spin7:",
201 |         spinner: Spinner(kind: .spin7)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:208:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
206 |     do {
207 |       let spin8 = ProgressSpinnerKit.progressSpinner(
208 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
209 |         header: " spin8:",
210 |         spinner: Spinner(kind: .spin8)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:217:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
215 |     do {
216 |       let spin9 = ProgressSpinnerKit.progressSpinner(
217 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
218 |         header: " spin9:",
219 |         spinner: Spinner(kind: .spin9)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:226:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
224 |     do {
225 |       let spin10 = ProgressSpinnerKit.progressSpinner(
226 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
227 |         header: " spin10:",
228 |         spinner: Spinner(kind: .spin10)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:235:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
233 |     do {
234 |       let spin11 = ProgressSpinnerKit.progressSpinner(
235 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
236 |         header: " spin11:",
237 |         spinner: Spinner(kind: .spin11)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:244:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
242 |     do {
243 |       let spin12 = ProgressSpinnerKit.progressSpinner(
244 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
245 |         header: " spin12:",
246 |         spinner: Spinner(kind: .spin12)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:253:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
251 |     do {
252 |       let spin13 = ProgressSpinnerKit.progressSpinner(
253 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
254 |         header: " spin13:",
255 |         spinner: Spinner(kind: .spin13)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:262:23: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
260 |     do {
261 |       let spin14 = ProgressSpinnerKit.progressSpinner(
262 |         for: TSCBasic.stderrStream,
    |                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
263 |         header: " spin14:",
264 |         spinner: Spinner(kind: .spin14)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:828:12: note: var declared here
826 |
827 | /// Public stderr stream instance.
828 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
829 |     filePointer: TSCLibc.stderr,
830 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/demo/Demo.swift:10:23: warning: passing closure as a 'sending' parameter risks causing data races between main actor-isolated code and concurrent execution of the closure; this is an error in the Swift 6 language mode
  8 |     func run(with spinner: any ProgressSpinnable) async {
  9 |       await withTaskGroup(of: Void.self) { group in
 10 |         group.addTask {
    |                       `- warning: passing closure as a 'sending' parameter risks causing data races between main actor-isolated code and concurrent execution of the closure; this is an error in the Swift 6 language mode
 11 |           await spinner.start()
    |                 `- note: closure captures 'spinner' which is accessible to main actor-isolated code
 12 |         }
 13 |         group.addTask {
[102/105] Write Objects.LinkFileList
[103/105] Linking demo
[104/105] Applying demo
Build complete! (20.70s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-tools-support-core",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.7.0",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-tools-support-core.git"
    }
  ],
  "manifest_display_name" : "ProgressSpinnerKit",
  "name" : "ProgressSpinnerKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "ProgressSpinnerKit",
      "targets" : [
        "ProgressSpinnerKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "demo",
      "targets" : [
        "demo"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "demo",
      "module_type" : "SwiftTarget",
      "name" : "demo",
      "path" : "Sources/demo",
      "product_memberships" : [
        "demo"
      ],
      "sources" : [
        "Demo.swift"
      ],
      "target_dependencies" : [
        "ProgressSpinnerKit"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "ProgressSpinnerKitTests",
      "module_type" : "SwiftTarget",
      "name" : "ProgressSpinnerKitTests",
      "path" : "Tests/ProgressSpinnerKitTests",
      "sources" : [
        "ProgressSpinnerTests.swift"
      ],
      "target_dependencies" : [
        "ProgressSpinnerKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ProgressSpinnerKit",
      "module_type" : "SwiftTarget",
      "name" : "ProgressSpinnerKit",
      "path" : "Sources/ProgressSpinnerKit",
      "product_dependencies" : [
        "SwiftToolsSupport"
      ],
      "product_memberships" : [
        "ProgressSpinnerKit",
        "demo"
      ],
      "sources" : [
        "ProgressSpinner.swift",
        "Spinner.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.