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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 NIOErrorKit with Swift 5.10 for Linux.

Build Command

bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-5.10-latest swift build 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.29.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/einstore/nioerrorkit.git
Reference: master
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/einstore/nioerrorkit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 9c82433 Update README.md
Cloned https://github.com/einstore/nioerrorkit.git
Revision (git rev-parse @):
9c82433ca1371a52a1eff48a55c006badb42b11c
SUCCESS checkout https://github.com/einstore/nioerrorkit.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             5.10
Building package at path:  $workDir
https://github.com/einstore/nioerrorkit.git
Running build ...
bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-5.10-latest swift build 2>&1
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/Einstore/WebErrorKit.git
[1/28] Fetching weberrorkit
[29/64467] Fetching weberrorkit, swift-nio
Fetched https://github.com/Einstore/WebErrorKit.git from cache (3.99s)
Fetched https://github.com/apple/swift-nio.git from cache (4.07s)
Computing version for https://github.com/Einstore/WebErrorKit.git
Computed https://github.com/Einstore/WebErrorKit.git at 0.0.1 (0.39s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.4.0 (0.46s)
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.4.0
Creating working copy for https://github.com/Einstore/WebErrorKit.git
Working copy of https://github.com/Einstore/WebErrorKit.git resolved at 0.0.1
Building for debugging...
[0/12] Write sources
[5/12] Compiling CNIODarwin shim.c
[6/12] Compiling CNIOLinux ifaddrs-android.c
[7/12] Compiling CNIOLinux shim.c
[8/12] Compiling CNIOSHA1 c_nio_sha1.c
[9/12] Compiling CNIOHTTPParser c_nio_http_parser.c
[10/12] Write swift-version-24593BA9C3E375BF.txt
[11/20] Compiling c-atomics.c
[13/23] Emitting module NIOConcurrencyHelpers
[14/23] Compiling WebErrorKit WebError+Serializable.swift
[15/23] Compiling WebErrorKit WebErrorContent.swift
[16/23] Compiling WebErrorKit WebError.swift
[17/23] Compiling WebErrorKit SerializableWebError.swift
[18/23] Compiling WebErrorKit WebError+RawRepresentable.swift
[19/23] Compiling NIOConcurrencyHelpers atomics.swift
[20/23] Compiling NIOConcurrencyHelpers lock.swift
[21/24] Compiling WebErrorKit Exports.swift
[22/24] Compiling WebErrorKit String+Codify.swift
[23/24] Emitting module WebErrorKit
error: emit-module command failed with exit code 1 (use -v to see invocation)
[26/75] Emitting module NIO
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[27/81] Compiling NIO CircularBuffer.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[28/81] Compiling NIO Codec.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[29/81] Compiling NIO DatagramVectorReadManager.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[30/81] Compiling NIO DeadChannel.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[31/81] Compiling NIO Embedded.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[32/81] Compiling NIO EventLoop.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[33/81] Compiling NIO EventLoopFuture.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[34/81] Compiling NIO NIOAny.swift
[35/81] Compiling NIO NIOCloseOnErrorHandler.swift
[36/81] Compiling NIO NIOThreadPool.swift
[37/81] Compiling NIO NonBlockingFileIO.swift
[38/81] Compiling NIO PendingDatagramWritesManager.swift
[39/81] Compiling NIO PendingWritesManager.swift
[40/81] Compiling NIO PriorityQueue.swift
[41/81] Compiling NIO IOData.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[42/81] Compiling NIO IntegerTypes.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[43/81] Compiling NIO Interfaces.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[44/81] Compiling NIO Linux.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[45/81] Compiling NIO LinuxCPUSet.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[46/81] Compiling NIO MarkedCircularBuffer.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[47/81] Compiling NIO MulticastChannel.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[48/81] Compiling NIO FileDescriptor.swift
[49/81] Compiling NIO FileHandle.swift
[50/81] Compiling NIO FileRegion.swift
[51/81] Compiling NIO GetaddrinfoResolver.swift
[52/81] Compiling NIO HappyEyeballs.swift
[53/81] Compiling NIO Heap.swift
[54/81] Compiling NIO IO.swift
[55/81] Compiling NIO ByteBuffer-views.swift
[56/81] Compiling NIO Channel.swift
[57/81] Compiling NIO ChannelHandler.swift
[58/81] Compiling NIO ChannelHandlers.swift
[59/81] Compiling NIO ChannelInvoker.swift
[60/81] Compiling NIO ChannelOption.swift
[61/81] Compiling NIO ChannelPipeline.swift
[62/81] Compiling NIO RecvByteBufferAllocator.swift
[63/81] Compiling NIO Resolver.swift
[64/81] Compiling NIO Selectable.swift
[65/81] Compiling NIO Selector.swift
[66/81] Compiling NIO ServerSocket.swift
[67/81] Compiling NIO Socket.swift
[68/81] Compiling NIO SocketAddresses.swift
[69/81] Compiling NIO SocketChannel.swift
[70/81] Compiling NIO SocketOptionProvider.swift
[71/81] Compiling NIO System.swift
[72/81] Compiling NIO Thread.swift
[73/81] Compiling NIO TypeAssistedChannelHandler.swift
[74/81] Compiling NIO Utilities.swift
[75/81] Compiling NIO AddressedEnvelope.swift
[76/81] Compiling NIO BaseSocket.swift
[77/81] Compiling NIO BaseSocketChannel.swift
[78/81] Compiling NIO Bootstrap.swift
[79/81] Compiling NIO ByteBuffer-aux.swift
[80/81] Compiling NIO ByteBuffer-core.swift
[81/81] Compiling NIO ByteBuffer-int.swift
error: fatalError
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/15] Compiling NIO IntegerTypes.swift
[3/15] Compiling NIO Interfaces.swift
[4/15] Compiling NIO MarkedCircularBuffer.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[5/15] Compiling NIO Linux.swift
[6/15] Compiling NIO LinuxCPUSet.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/26] Emitting module NIO
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: type 'MarkedCircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/MarkedCircularBuffer.swift:132:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension MarkedCircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[8/26] Compiling NIO CircularBuffer.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[9/26] Compiling NIO Codec.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: type 'CircularBuffer<Element>' does not conform to protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIO/CircularBuffer.swift:106:1: error: unavailable subscript 'subscript(_:)' was used to satisfy a requirement of protocol 'MutableCollection'
extension CircularBuffer: Collection, MutableCollection {
^
Swift.MutableCollection:8:12: note: 'subscript(_:)' declared here
    public subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
           ^
Swift.MutableCollection:6:14: note: requirement 'subscript(_:)' declared here
    override subscript(bounds: Range<Self.Index>) -> Self.SubSequence { get set }
             ^
[10/26] Compiling NIO DatagramVectorReadManager.swift
[11/26] Compiling NIO DeadChannel.swift
[12/26] Compiling NIO EventLoopFuture.swift
[13/26] Compiling NIO IOData.swift
[14/31] Compiling NIO Embedded.swift
[15/31] Compiling NIO EventLoop.swift
[16/50] Compiling NIO ByteBuffer-core.swift
[17/50] Compiling NIO ByteBuffer-int.swift
[18/50] Compiling NIO ByteBuffer-views.swift
[19/50] Compiling NIO Channel.swift
[20/50] Compiling NIO ChannelHandler.swift
[21/54] Compiling NIO AddressedEnvelope.swift
[22/54] Compiling NIO BaseSocket.swift
[23/54] Compiling NIO BaseSocketChannel.swift
[24/54] Compiling NIO Bootstrap.swift
[25/54] Compiling NIO ByteBuffer-aux.swift
[26/54] Compiling NIO MulticastChannel.swift
[27/55] Compiling NIO Resolver.swift
[28/55] Compiling NIO NIOAny.swift
[29/55] Compiling NIO NIOCloseOnErrorHandler.swift
[30/55] Compiling NIO NIOThreadPool.swift
[31/55] Compiling NIO NonBlockingFileIO.swift
[32/55] Compiling NIO PendingDatagramWritesManager.swift
[33/55] Compiling NIO ChannelHandlers.swift
[34/55] Compiling NIO ChannelInvoker.swift
[35/55] Compiling NIO ChannelOption.swift
[36/55] Compiling NIO ChannelPipeline.swift
[37/55] Compiling NIO FileHandle.swift
[38/55] Compiling NIO FileRegion.swift
[39/55] Compiling NIO GetaddrinfoResolver.swift
[40/55] Compiling NIO HappyEyeballs.swift
[41/55] Compiling NIO Heap.swift
[42/55] Compiling NIO IO.swift
[43/55] Compiling NIO System.swift
[44/55] Compiling NIO Thread.swift
[45/55] Compiling NIO TypeAssistedChannelHandler.swift
[46/55] Compiling NIO Utilities.swift
[47/55] Compiling NIO PendingWritesManager.swift
[48/55] Compiling NIO PriorityQueue.swift
[49/55] Compiling NIO RecvByteBufferAllocator.swift
[50/55] Compiling NIO Selector.swift
[51/55] Compiling NIO ServerSocket.swift
[52/55] Compiling NIO Socket.swift
[53/55] Compiling NIO SocketAddresses.swift
[54/55] Compiling NIO SocketChannel.swift
[55/55] Compiling NIO SocketOptionProvider.swift
error: fatalError
BUILD FAILURE 5.10 linux