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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 SwiftMarkdown, reference main (aee5f0), with Swift 6.0 for macOS (SPM) on 2 Nov 2024 00:13:43 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/vapor-community/markdown.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/vapor-community/markdown
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at aee5f05 Use the modern CI (#16)
Cloned https://github.com/vapor-community/markdown.git
Revision (git rev-parse @):
aee5f0590bb3114298e579192b678d18ab8f4b76
SUCCESS checkout https://github.com/vapor-community/markdown.git at main
Fetching https://github.com/brokenhandsio/cmark-gfm.git
[1/12300] Fetching cmark-gfm
Fetched https://github.com/brokenhandsio/cmark-gfm.git from cache (1.37s)
Computing version for https://github.com/brokenhandsio/cmark-gfm.git
Computed https://github.com/brokenhandsio/cmark-gfm.git at 2.1.0 (0.64s)
Creating working copy for https://github.com/brokenhandsio/cmark-gfm.git
Working copy of https://github.com/brokenhandsio/cmark-gfm.git resolved at 2.1.0
========================================
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": "markdown",
      "name": "SwiftMarkdown",
      "url": "https://github.com/vapor-community/markdown.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/markdown",
      "dependencies": [
        {
          "identity": "cmark-gfm",
          "name": "cmark",
          "url": "https://github.com/brokenhandsio/cmark-gfm.git",
          "version": "2.1.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/cmark-gfm",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/vapor-community/markdown.git
[1/246] Fetching markdown
Fetched https://github.com/vapor-community/markdown.git from cache (0.82s)
Fetching https://github.com/brokenhandsio/cmark-gfm.git from cache
Fetched https://github.com/brokenhandsio/cmark-gfm.git from cache (0.47s)
Computing version for https://github.com/brokenhandsio/cmark-gfm.git
Computed https://github.com/brokenhandsio/cmark-gfm.git at 2.1.0 (0.02s)
Creating working copy for https://github.com/vapor-community/markdown.git
Working copy of https://github.com/vapor-community/markdown.git resolved at main (aee5f05)
Creating working copy for https://github.com/brokenhandsio/cmark-gfm.git
Working copy of https://github.com/brokenhandsio/cmark-gfm.git resolved at 2.1.0
warning: '.resolve-product-dependencies': dependency 'markdown' is not used by any target
Found 1 product dependencies
  - cmark
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/vapor-community/markdown.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/36] Write swift-version--7754E27361AE5C74.txt
[1/36] Compiling cmark plaintext.c
[1/36] Compiling cmark map.c
[2/36] Compiling cmark man.c
[4/36] Compiling cmark ext_scanners.c
[5/36] Compiling cmark node.c
[6/36] Compiling cmark syntax_extension.c
[7/36] Compiling cmark tasklist.c
[8/36] Compiling cmark table.c
[9/36] Compiling cmark tagfilter.c
[10/36] Compiling cmark plugin.c
[11/36] Compiling cmark linked_list.c
[12/36] Compiling cmark strikethrough.c
[13/36] Compiling cmark utf8.c
[14/36] Compiling cmark registry.c
[15/36] Compiling cmark references.c
[16/36] Compiling cmark render.c
[17/36] Compiling cmark cmark.c
[18/36] Compiling cmark iterator.c
[19/36] Compiling cmark html.c
[20/36] Compiling cmark houdini_html_e.c
[21/36] Compiling cmark houdini_href_e.c
[22/36] Compiling cmark core-extensions.c
[23/36] Compiling cmark inlines.c
[24/36] Compiling cmark footnotes.c
[25/36] Compiling cmark houdini_html_u.c
[26/36] Write sources
[27/36] Compiling cmark cmark_ctype.c
[28/36] Compiling cmark xml.c
[29/36] Compiling cmark buffer.c
[30/36] Compiling cmark commonmark.c
[31/36] Compiling cmark arena.c
[32/36] Compiling cmark scanners.c
[33/36] Compiling cmark blocks.c
[34/36] Compiling cmark latex.c
[35/36] Compiling cmark autolink.c
[37/38] Emitting module SwiftMarkdown
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:17:23: warning: static property 'sourcePosition' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
15 |     }
16 |
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
   |                       |- warning: static property 'sourcePosition' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'sourcePosition' 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
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:18:23: warning: static property 'hardBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
16 |
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'hardBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'hardBreaks' 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
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:19:23: warning: static property 'safe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
   |                       |- warning: static property 'safe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'safe' 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
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:20:23: warning: static property 'noBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
   |                       |- warning: static property 'noBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'noBreaks' 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
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:21:23: warning: static property 'normalize' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
   |                       |- warning: static property 'normalize' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'normalize' 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
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:22:23: warning: static property 'validateUTF8' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
   |                       |- warning: static property 'validateUTF8' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'validateUTF8' 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
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:23:23: warning: static property 'smartQuotes' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
   |                       |- warning: static property 'smartQuotes' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'smartQuotes' 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
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
25 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:24:23: warning: static property 'unsafe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
   |                       |- warning: static property 'unsafe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'unsafe' 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
25 | }
26 |
[38/38] Compiling SwiftMarkdown SwiftMarkdown.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:17:23: warning: static property 'sourcePosition' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
15 |     }
16 |
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
   |                       |- warning: static property 'sourcePosition' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'sourcePosition' 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
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:18:23: warning: static property 'hardBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
16 |
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'hardBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'hardBreaks' 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
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:19:23: warning: static property 'safe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
17 |     static public let sourcePosition = MarkdownOptions(rawValue: 1 << 1)
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
   |                       |- warning: static property 'safe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'safe' 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
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:20:23: warning: static property 'noBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
18 |     static public let hardBreaks = MarkdownOptions(rawValue: 1 << 2)
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
   |                       |- warning: static property 'noBreaks' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'noBreaks' 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
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:21:23: warning: static property 'normalize' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
19 |     static public let safe = MarkdownOptions(rawValue: 1 << 3)
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
   |                       |- warning: static property 'normalize' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'normalize' 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
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:22:23: warning: static property 'validateUTF8' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
20 |     static public let noBreaks = MarkdownOptions(rawValue: 1 << 4)
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
   |                       |- warning: static property 'validateUTF8' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'validateUTF8' 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
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:23:23: warning: static property 'smartQuotes' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
21 |     static public let normalize = MarkdownOptions(rawValue: 1 << 8)
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
   |                       |- warning: static property 'smartQuotes' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'smartQuotes' 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
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
25 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:24:23: warning: static property 'unsafe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | }
 9 |
10 | public struct MarkdownOptions: OptionSet {
   |               `- note: consider making struct 'MarkdownOptions' conform to the 'Sendable' protocol
11 |     public let rawValue: Int32
12 |
   :
22 |     static public let validateUTF8 = MarkdownOptions(rawValue: 1 << 9)
23 |     static public let smartQuotes = MarkdownOptions(rawValue: 1 << 10)
24 |     static public let unsafe = MarkdownOptions(rawValue: 1 << 17)
   |                       |- warning: static property 'unsafe' is not concurrency-safe because non-'Sendable' type 'MarkdownOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'unsafe' 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
25 | }
26 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:31:60: error: cannot find 'strlen' in scope
29 |     try str.withCString {
30 |
31 |         guard let buf = cmark_gfm_markdown_to_html($0, Int(strlen($0)), options.rawValue) else {
   |                                                            `- error: cannot find 'strlen' in scope
32 |             throw MarkdownError.conversionFailed
33 |         }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftMarkdown/SwiftMarkdown.swift:36:9: error: cannot find 'free' in scope
34 |
35 |         buffer = String(cString: buf)
36 |         free(buf)
   |         `- error: cannot find 'free' in scope
37 |     }
38 |     guard let output = buffer else {
BUILD FAILURE 6.0 macosSpm