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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 Motor with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 4

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/flintprocessor/Motor.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/flintprocessor/Motor
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at ec165db Merge branch 'develop'
Cloned https://github.com/flintprocessor/Motor.git
Revision (git rev-parse @):
ec165db3be9046b956cc3a9b035d4134ab95998e
SUCCESS checkout https://github.com/flintprocessor/Motor.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/flintprocessor/Motor.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/8] Write sources
[2/8] Write motor-example-entitlement.plist
[4/8] Write swift-version-6F35C1178C84523A.txt
[6/18] Compiling ANSIEscapeCode PrintANSIEscapeCode.swift
[7/18] Compiling ANSIEscapeCode String+ANSIEscapeCode.swift
[8/18] Compiling ANSIEscapeCode Scroll.swift
[9/18] Compiling ANSIEscapeCode EraseInLineType.swift
[10/18] Compiling ANSIEscapeCode Erase.swift
[11/18] Compiling ANSIEscapeCode EraseInDisplayType.swift
[12/19] Compiling ANSIEscapeCode BackgroundColor.swift
[13/19] Emitting module ANSIEscapeCode
[14/19] Compiling ANSIEscapeCode Cursor.swift
[15/19] Compiling ANSIEscapeCode ANSIEscapeCode.swift
[16/19] Compiling ANSIEscapeCode TextColor.swift
[17/25] Compiling Motor Patterns.swift
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:32:23: warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
30 |
31 |     /// Dots.
32 |     public static let dots = Pattern(
   |                       |- warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         frames: ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"],
34 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:37:23: warning: static property 'dots2' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
35 |     )
36 |     /// Dots 2.
37 |     public static let dots2 = Pattern(
   |                       |- warning: static property 'dots2' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots2' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
38 |         frames: ["⣾", "⣽", "⣻", "⢿", "⡿", "⣟", "⣯", "⣷"],
39 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:42:23: warning: static property 'dots3' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
40 |     )
41 |     /// Dots 3.
42 |     public static let dots3 = Pattern(
   |                       |- warning: static property 'dots3' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots3' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
43 |         frames: ["⠄", "⠆", "⠇", "⠋", "⠙", "⠸", "⠰", "⠠", "⠰", "⠸", "⠙", "⠋", "⠇", "⠆"],
44 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:47:23: warning: static property 'bouncingBar' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
45 |     )
46 |     /// Bouncing bar.
47 |     public static let bouncingBar = Pattern(
   |                       |- warning: static property 'bouncingBar' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'bouncingBar' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
48 |         frames: ["[    ]", "[=   ]", "[==  ]", "[=== ]", "[====]", "[ ===]", "[  ==]", "[   =]", "[    ]"],
49 |         fps: 10
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
[18/25] Compiling Motor Pattern.swift
[19/25] Compiling Motor Animator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Animator.swift:30:12: warning: class 'Animator' must restate inherited '@unchecked Sendable' conformance
28 |
29 | /// Spinner animator.
30 | open class Animator: Operation {
   |            `- warning: class 'Animator' must restate inherited '@unchecked Sendable' conformance
31 |
32 |     /// Text displayed beside spinner.
[20/25] Compiling Motor Animation.swift
[21/25] Compiling Motor Spinner.swift
[22/25] Emitting module Motor
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Animator.swift:30:12: warning: class 'Animator' must restate inherited '@unchecked Sendable' conformance
28 |
29 | /// Spinner animator.
30 | open class Animator: Operation {
   |            `- warning: class 'Animator' must restate inherited '@unchecked Sendable' conformance
31 |
32 |     /// Text displayed beside spinner.
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:32:23: warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
30 |
31 |     /// Dots.
32 |     public static let dots = Pattern(
   |                       |- warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         frames: ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"],
34 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:37:23: warning: static property 'dots2' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
35 |     )
36 |     /// Dots 2.
37 |     public static let dots2 = Pattern(
   |                       |- warning: static property 'dots2' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots2' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
38 |         frames: ["⣾", "⣽", "⣻", "⢿", "⡿", "⣟", "⣯", "⣷"],
39 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:42:23: warning: static property 'dots3' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
40 |     )
41 |     /// Dots 3.
42 |     public static let dots3 = Pattern(
   |                       |- warning: static property 'dots3' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots3' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
43 |         frames: ["⠄", "⠆", "⠇", "⠋", "⠙", "⠸", "⠰", "⠠", "⠰", "⠸", "⠙", "⠋", "⠇", "⠆"],
44 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:47:23: warning: static property 'bouncingBar' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
45 |     )
46 |     /// Bouncing bar.
47 |     public static let bouncingBar = Pattern(
   |                       |- warning: static property 'bouncingBar' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'bouncingBar' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
48 |         frames: ["[    ]", "[=   ]", "[==  ]", "[=== ]", "[====]", "[ ===]", "[  ==]", "[   =]", "[    ]"],
49 |         fps: 10
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
[23/27] Emitting module motor_example
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:32:23: warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
30 |
31 |     /// Dots.
32 |     public static let dots = Pattern(
   |                       |- warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         frames: ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"],
34 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
[24/27] Compiling motor_example main.swift
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Patterns.swift:32:23: warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
30 |
31 |     /// Dots.
32 |     public static let dots = Pattern(
   |                       |- warning: static property 'dots' is not concurrency-safe because non-'Sendable' type 'Pattern' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'dots' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
33 |         frames: ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"],
34 |         fps: 14
/Users/admin/builder/spi-builder-workspace/Sources/Motor/Pattern.swift:29:15: note: consider making struct 'Pattern' conform to the 'Sendable' protocol
27 |
28 | /// Spinner pattern.
29 | public struct Pattern {
   |               `- note: consider making struct 'Pattern' conform to the 'Sendable' protocol
30 |
31 |     /// Each frame
[24/27] Write Objects.LinkFileList
[25/27] Linking motor-example
[26/27] Applying motor-example
Build complete! (28.28s)
Fetching https://github.com/flintbox/ANSIEscapeCode
[2/49] Fetching ansiescapecode
Fetched https://github.com/flintbox/ANSIEscapeCode from cache (0.85s)
Computing version for https://github.com/flintbox/ANSIEscapeCode
Computed https://github.com/flintbox/ANSIEscapeCode at 0.1.1 (0.66s)
Creating working copy for https://github.com/flintbox/ANSIEscapeCode
Working copy of https://github.com/flintbox/ANSIEscapeCode resolved at 0.1.1
Build complete.
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            "lower_bound" : "0.1.1",
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      "type" : "sourceControl",
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  "manifest_display_name" : "Motor",
  "name" : "Motor",
  "path" : "/Users/admin/builder/spi-builder-workspace",
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  "products" : [
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      "product_memberships" : [
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      "sources" : [
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        "Spinner.swift"
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      "type" : "library"
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  "tools_version" : "4.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.