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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 LevelLogger, reference master (71a16b), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 09:40:22 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/pedantix/levellogger.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pedantix/levellogger
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 71a16b4 initial commit
Cloned https://github.com/pedantix/levellogger.git
Revision (git rev-parse @):
71a16b407ad64c55052a961258b540128120cb73
SUCCESS checkout https://github.com/pedantix/levellogger.git at master
Fetching https://github.com/apple/swift-nio-zlib-support.git
Fetching https://github.com/vapor/core.git
Fetching https://github.com/vapor/service.git
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/vapor/console.git
[1/15] Fetching swift-nio-zlib-support
[16/934] Fetching swift-nio-zlib-support, service
[228/21077] Fetching swift-nio-zlib-support, service, core
[229/26547] Fetching swift-nio-zlib-support, service, core, console
[26548/97638] Fetching swift-nio-zlib-support, service, core, console, swift-nio
Fetched https://github.com/vapor/core.git from cache (1.85s)
[7115/77495] Fetching swift-nio-zlib-support, service, console, swift-nio
Fetched https://github.com/vapor/console.git from cache (37.00s)
Computing version for https://github.com/vapor/console.git
Fetched https://github.com/apple/swift-nio-zlib-support.git from cache (37.00s)
Fetched https://github.com/apple/swift-nio.git from cache (37.00s)
Fetched https://github.com/vapor/service.git from cache (37.00s)
Computed https://github.com/vapor/console.git at 3.0.2 (0.69s)
Computing version for https://github.com/vapor/service.git
Computed https://github.com/vapor/service.git at 1.0.0 (0.65s)
Computing version for https://github.com/vapor/core.git
Computed https://github.com/vapor/core.git at 3.4.1 (0.65s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 1.8.0 (0.71s)
Computing version for https://github.com/apple/swift-nio-zlib-support.git
Computed https://github.com/apple/swift-nio-zlib-support.git at 1.0.0 (0.65s)
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 1.8.0
Creating working copy for https://github.com/apple/swift-nio-zlib-support.git
Working copy of https://github.com/apple/swift-nio-zlib-support.git resolved at 1.0.0
Creating working copy for https://github.com/vapor/service.git
Working copy of https://github.com/vapor/service.git resolved at 1.0.0
Creating working copy for https://github.com/vapor/console.git
Working copy of https://github.com/vapor/console.git resolved at 3.0.2
Creating working copy for https://github.com/vapor/core.git
Working copy of https://github.com/vapor/core.git resolved at 3.4.1
========================================
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": "levellogger",
      "name": "LevelLogger",
      "url": "https://github.com/pedantix/levellogger.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/levellogger",
      "dependencies": [
        {
          "identity": "console",
          "name": "Console",
          "url": "https://github.com/vapor/console.git",
          "version": "3.1.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/console",
          "dependencies": [
            {
              "identity": "core",
              "name": "Core",
              "url": "https://github.com/vapor/core.git",
              "version": "3.10.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/core",
              "dependencies": [
                {
                  "identity": "swift-nio",
                  "name": "swift-nio",
                  "url": "https://github.com/apple/swift-nio.git",
                  "version": "1.14.4",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                  "dependencies": [
                    {
                      "identity": "swift-nio-zlib-support",
                      "name": "swift-nio-zlib-support",
                      "url": "https://github.com/apple/swift-nio-zlib-support.git",
                      "version": "1.0.0",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                      "dependencies": [
                      ]
                    }
                  ]
                }
              ]
            },
            {
              "identity": "service",
              "name": "Service",
              "url": "https://github.com/vapor/service.git",
              "version": "1.0.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/service",
              "dependencies": [
                {
                  "identity": "core",
                  "name": "Core",
                  "url": "https://github.com/vapor/core.git",
                  "version": "3.10.1",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/core",
                  "dependencies": [
                    {
                      "identity": "swift-nio",
                      "name": "swift-nio",
                      "url": "https://github.com/apple/swift-nio.git",
                      "version": "1.14.4",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                      "dependencies": [
                        {
                          "identity": "swift-nio-zlib-support",
                          "name": "swift-nio-zlib-support",
                          "url": "https://github.com/apple/swift-nio-zlib-support.git",
                          "version": "1.0.0",
                          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                          "dependencies": [
                          ]
                        }
                      ]
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/pedantix/levellogger.git
[1/15] Fetching levellogger
Fetched https://github.com/pedantix/levellogger.git from cache (0.65s)
Fetching https://github.com/vapor/console.git from cache
Fetched https://github.com/vapor/console.git from cache (0.50s)
Computing version for https://github.com/vapor/console.git
Computed https://github.com/vapor/console.git at 3.1.1 (0.03s)
Fetching https://github.com/vapor/core.git from cache
Fetching https://github.com/vapor/service.git from cache
Fetched https://github.com/vapor/core.git from cache (0.57s)
Fetched https://github.com/vapor/service.git from cache (0.57s)
Computing version for https://github.com/vapor/service.git
Computed https://github.com/vapor/service.git at 1.0.2 (0.03s)
Computing version for https://github.com/vapor/core.git
Computed https://github.com/vapor/core.git at 3.10.1 (0.66s)
Fetching https://github.com/apple/swift-nio.git from cache
Fetched https://github.com/apple/swift-nio.git from cache (0.80s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 1.14.4 (0.68s)
Fetching https://github.com/apple/swift-nio-zlib-support.git from cache
Fetched https://github.com/apple/swift-nio-zlib-support.git from cache (0.49s)
Computing version for https://github.com/apple/swift-nio-zlib-support.git
Computed https://github.com/apple/swift-nio-zlib-support.git at 1.0.0 (0.03s)
Creating working copy for https://github.com/vapor/core.git
Working copy of https://github.com/vapor/core.git resolved at 3.10.1
Creating working copy for https://github.com/vapor/service.git
Working copy of https://github.com/vapor/service.git resolved at 1.0.2
Creating working copy for https://github.com/vapor/console.git
Working copy of https://github.com/vapor/console.git resolved at 3.1.1
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 1.14.4
Creating working copy for https://github.com/apple/swift-nio-zlib-support.git
Working copy of https://github.com/apple/swift-nio-zlib-support.git resolved at 1.0.0
Creating working copy for https://github.com/pedantix/levellogger.git
Working copy of https://github.com/pedantix/levellogger.git resolved at master (71a16b4)
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: '.resolve-product-dependencies': dependency 'levellogger' is not used by any target
Found 1 product dependencies
  - Console
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/pedantix/levellogger.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...
[0/18] Write sources
[13/18] Compiling CNIOLinux shim.c
[14/18] Write swift-version--7754E27361AE5C74.txt
[15/27] Compiling CNIODarwin shim.c
[16/27] Compiling CNIOSHA1 c_nio_sha1.c
[17/27] Compiling c-atomics.c
[19/30] Emitting module COperatingSystem
[20/30] Compiling COperatingSystem libc.swift
[21/30] Emitting module NIOPriorityQueue
[22/30] Compiling NIOPriorityQueue PriorityQueue.swift
[23/30] Compiling NIOPriorityQueue Heap.swift
[24/30] Compiling NIOConcurrencyHelpers lock.swift
[25/30] Compiling NIOConcurrencyHelpers atomics.swift
[26/30] Emitting module NIOConcurrencyHelpers
[27/78] Compiling NIO FileDescriptor.swift
[28/78] Compiling NIO FileHandle.swift
[29/78] Compiling NIO FileRegion.swift
[30/78] Compiling NIO GetaddrinfoResolver.swift
[31/78] Compiling NIO HappyEyeballs.swift
[32/83] Compiling NIO PendingDatagramWritesManager.swift
[33/83] Compiling NIO PendingWritesManager.swift
[34/83] Compiling NIO PriorityQueue.swift
[35/83] Compiling NIO RecvByteBufferAllocator.swift
[36/83] Compiling NIO Resolver.swift
[37/83] Compiling NIO Linux.swift
[38/83] Compiling NIO LinuxCPUSet.swift
[39/83] Compiling NIO MarkedCircularBuffer.swift
[40/83] Compiling NIO NIOAny.swift
[41/83] Compiling NIO NonBlockingFileIO.swift
[42/83] Compiling NIO Selectable.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/Selector.swift:587:19: error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
585 |             selectorEvent = selectorEvent.intersection(registration.interested)
586 |
587 |             guard selectorEvent != .none else {
    |                   `- error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
588 |                 continue
589 |             }
[43/83] Compiling NIO Selector.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/Selector.swift:587:19: error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
585 |             selectorEvent = selectorEvent.intersection(registration.interested)
586 |
587 |             guard selectorEvent != .none else {
    |                   `- error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
588 |                 continue
589 |             }
[44/83] Compiling NIO ServerSocket.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/Selector.swift:587:19: error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
585 |             selectorEvent = selectorEvent.intersection(registration.interested)
586 |
587 |             guard selectorEvent != .none else {
    |                   `- error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
588 |                 continue
589 |             }
[45/83] Compiling NIO Socket.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/Selector.swift:587:19: error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
585 |             selectorEvent = selectorEvent.intersection(registration.interested)
586 |
587 |             guard selectorEvent != .none else {
    |                   `- error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
588 |                 continue
589 |             }
[46/83] Compiling NIO SocketAddresses.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/Selector.swift:587:19: error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
585 |             selectorEvent = selectorEvent.intersection(registration.interested)
586 |
587 |             guard selectorEvent != .none else {
    |                   `- error: cannot convert value of type 'SelectorEventSet' to expected argument type '(any Any.Type)?'
588 |                 continue
589 |             }
[47/83] Compiling NIO ByteBuffer-core.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[48/83] Compiling NIO ByteBuffer-int.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[49/83] Compiling NIO ByteBuffer-views.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[50/83] Compiling NIO Channel.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[51/83] Compiling NIO ChannelHandler.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[52/83] Compiling NIO ChannelHandlers.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[53/83] Compiling NIO ChannelInvoker.swift
[54/83] Compiling NIO ChannelOption.swift
[55/83] Compiling NIO ChannelPipeline.swift
[56/83] Compiling NIO CircularBuffer.swift
[57/83] Compiling NIO Codec.swift
[58/83] Compiling NIO Heap.swift
[59/83] Compiling NIO IO.swift
[60/83] Compiling NIO IOData.swift
[61/83] Compiling NIO IntegerTypes.swift
[62/83] Compiling NIO Interfaces.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[63/83] Emitting module NIO
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: type 'StaticString' does not conform to protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: type 'StaticString' does not conform to protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/ByteBuffer-core.swift:664:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
662 | }
663 |
664 | extension StaticString: Collection {
    | `- error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'Collection'
665 |     public typealias Element = UInt8
666 |     public typealias SubSequence = ArraySlice<UInt8>
Swift.Collection:3:12: note: 'subscript(_:)' declared here
1 | extension Collection {
2 |     @available(*, unavailable)
3 |     public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
  |            `- note: 'subscript(_:)' declared here
4 | }
Swift.Collection:14:5: note: requirement 'subscript(_:)' declared here
12 |     associatedtype SubSequence : Collection = Slice<Self> where Self.Element == Self.SubSequence.Element, Self.SubSequence == Self.SubSequence.SubSequence
13 |     subscript(position: Self.Index) -> Self.Element { get }
14 |     subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get }
   |     `- note: requirement 'subscript(_:)' declared here
15 |     associatedtype Indices : Collection = DefaultIndices<Self> where Self.Indices == Self.Indices.SubSequence
16 |     var indices: Self.Indices { get }
[64/83] Compiling NIO CompositeError.swift
[65/83] Compiling NIO DeadChannel.swift
[66/83] Compiling NIO Embedded.swift
[67/83] Compiling NIO EventLoop.swift
[68/83] Compiling NIO EventLoopFuture.swift
[69/83] Compiling NIO AddressedEnvelope.swift
[70/83] Compiling NIO BaseSocket.swift
[71/83] Compiling NIO BaseSocketChannel.swift
[72/83] Compiling NIO BlockingIOThreadPool.swift
[73/83] Compiling NIO Bootstrap.swift
[74/83] Compiling NIO ByteBuffer-aux.swift
[75/83] Compiling NIO SocketChannel.swift
[76/83] Compiling NIO System.swift
[77/83] Compiling NIO Thread.swift
[78/83] Compiling NIO TypeAssistedChannelHandler.swift
[79/83] Compiling NIO Utilities.swift
[80/83] Compiling Debugging SourceLocation.swift
[81/83] Emitting module Debugging
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: couldn't find pc file for zlib
BUILD FAILURE 6.0 macosSpm