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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 Aoxiang, reference main (220000), with Swift 6.1 for Linux on 27 Apr 2025 15:27:03 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/isaced/Aoxiang.git
Reference: main
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/isaced/Aoxiang
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 220000a fix: public property automaticallySuspendInBackground
Cloned https://github.com/isaced/Aoxiang.git
Revision (git rev-parse @):
220000a543578c7fb4aa8eed01ab7fe95488cbda
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/isaced/Aoxiang.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/isaced/Aoxiang.git
https://github.com/isaced/Aoxiang.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Aoxiang",
  "name" : "Aoxiang",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "Aoxiang",
      "targets" : [
        "Aoxiang"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AoxiangTests",
      "module_type" : "SwiftTarget",
      "name" : "AoxiangTests",
      "path" : "Tests/AoxiangTests",
      "sources" : [
        "AoxiangTests.swift",
        "MiddlewareTests.swift",
        "Utils.swift"
      ],
      "target_dependencies" : [
        "Aoxiang"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Aoxiang",
      "module_type" : "SwiftTarget",
      "name" : "Aoxiang",
      "path" : "Sources/Aoxiang",
      "product_memberships" : [
        "Aoxiang"
      ],
      "sources" : [
        "HTTPParser.swift",
        "HTTPRequest.swift",
        "HTTPResponse.swift",
        "HTTPRouter.swift",
        "HTTPServer.swift",
        "Socket.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.4"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/9] Compiling Aoxiang HTTPRouter.swift
[4/9] Compiling Aoxiang HTTPRequest.swift
[5/9] Compiling Aoxiang HTTPParser.swift
[6/9] Compiling Aoxiang HTTPResponse.swift
[7/9] Emitting module Aoxiang
[8/9] Compiling Aoxiang HTTPServer.swift
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:115:25: warning: capture of 'strongSelf' with non-sendable type 'HTTPServer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 49 | ///     }
 50 | ///     try server.start(3000)
 51 | open class HTTPServer {
    |            `- note: class 'HTTPServer' does not conform to the 'Sendable' protocol
 52 |     /// A butil-in router middleware
 53 |     let router = HTTPRouter()
    :
113 |                     guard let strongSelf = self else { return }
114 |                     strongSelf.queue.async {
115 |                         strongSelf.sockets.insert(socket)
    |                         `- warning: capture of 'strongSelf' with non-sendable type 'HTTPServer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
116 |                     }
117 |
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:115:51: warning: capture of 'socket' with non-sendable type 'Socket' in a '@Sendable' closure; this is an error in the Swift 6 language mode
113 |                     guard let strongSelf = self else { return }
114 |                     strongSelf.queue.async {
115 |                         strongSelf.sockets.insert(socket)
    |                                                   `- warning: capture of 'socket' with non-sendable type 'Socket' in a '@Sendable' closure; this is an error in the Swift 6 language mode
116 |                     }
117 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:24:7: note: class 'Socket' does not conform to the 'Sendable' protocol
 22 | ///
 23 | /// This class is used to create a socket, bind it to a port, listen for incoming connections, and accept them.
 24 | class Socket: Hashable, Equatable {
    |       `- note: class 'Socket' does not conform to the 'Sendable' protocol
 25 |     let sock: Int32
 26 |
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:121:25: warning: capture of 'strongSelf' with non-sendable type 'HTTPServer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 49 | ///     }
 50 | ///     try server.start(3000)
 51 | open class HTTPServer {
    |            `- note: class 'HTTPServer' does not conform to the 'Sendable' protocol
 52 |     /// A butil-in router middleware
 53 |     let router = HTTPRouter()
    :
119 |
120 |                     strongSelf.queue.async {
121 |                         strongSelf.sockets.remove(socket)
    |                         `- warning: capture of 'strongSelf' with non-sendable type 'HTTPServer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
122 |                     }
123 |                 }
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:121:51: warning: capture of 'socket' with non-sendable type 'Socket' in a '@Sendable' closure; this is an error in the Swift 6 language mode
119 |
120 |                     strongSelf.queue.async {
121 |                         strongSelf.sockets.remove(socket)
    |                                                   `- warning: capture of 'socket' with non-sendable type 'Socket' in a '@Sendable' closure; this is an error in the Swift 6 language mode
122 |                     }
123 |                 }
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:24:7: note: class 'Socket' does not conform to the 'Sendable' protocol
 22 | ///
 23 | /// This class is used to create a socket, bind it to a port, listen for incoming connections, and accept them.
 24 | class Socket: Hashable, Equatable {
    |       `- note: class 'Socket' does not conform to the 'Sendable' protocol
 25 |     let sock: Int32
 26 |
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:109:37: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
107 |         self.stop()
108 |         self.socket = try Socket(port: port)
109 |         Task(priority: .background) { [weak self] in
    |                                     `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
110 |             guard let strongSelf = self else { return }
    |                                    `- note: closure captures 'self' which is accessible to code in the current task
111 |             while let socket: Socket = try? strongSelf.socket?.accept() {
112 |                 Task(priority: .background) { [weak self] in
/host/spi-builder-workspace/Sources/Aoxiang/HTTPServer.swift:112:45: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
110 |             guard let strongSelf = self else { return }
111 |             while let socket: Socket = try? strongSelf.socket?.accept() {
112 |                 Task(priority: .background) { [weak self] in
    |                                             `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
113 |                     guard let strongSelf = self else { return }
    |                                            `- note: closure captures non-Sendable 'self'
114 |                     strongSelf.queue.async {
115 |                         strongSelf.sockets.insert(socket)
    |                                                   `- note: closure captures non-Sendable 'socket'
116 |                     }
117 |
[9/9] Compiling Aoxiang Socket.swift
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:49:29: error: cannot assign value of type '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)' to type '(UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)'
 47 |         serveraddr.sin_port = port.bigEndian
 48 |         serveraddr.sin_addr = in_addr(s_addr: in_addr_t(0))
 49 |         serveraddr.sin_zero = (zero, zero, zero, zero, zero, zero, zero, zero)
    |                             `- error: cannot assign value of type '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)' to type '(UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)'
 50 |         self.sock = socket(internetLayerProtocol, Int32(transportLayerType), 0)
 51 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:50:51: error: initializer 'init(_:)' requires that '__socket_type' conform to 'BinaryFloatingPoint'
 48 |         serveraddr.sin_addr = in_addr(s_addr: in_addr_t(0))
 49 |         serveraddr.sin_zero = (zero, zero, zero, zero, zero, zero, zero, zero)
 50 |         self.sock = socket(internetLayerProtocol, Int32(transportLayerType), 0)
    |                                                   `- error: initializer 'init(_:)' requires that '__socket_type' conform to 'BinaryFloatingPoint'
 51 |
 52 |         // reuse socket address (for fix "Address already in use")
Swift.FixedWidthInteger.init:2:19: note: where 'T' = '__socket_type'
1 | protocol FixedWidthInteger {
2 | @inlinable public init<T>(_ source: T) where T : BinaryFloatingPoint}
  |                   `- note: where 'T' = '__socket_type'
3 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:28: error: cannot find 'Darwin' in scope
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                            `- error: cannot find 'Darwin' in scope
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:48: error: 'nil' requires a contextual type
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                                                `- error: 'nil' requires a contextual type
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:53: error: 'nil' requires a contextual type
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                                                     `- error: 'nil' requires a contextual type
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:88:9: error: cannot find 'Darwin' in scope
 86 |
 87 |     public func close() {
 88 |         Darwin.close(sock)
    |         `- error: cannot find 'Darwin' in scope
 89 |     }
 90 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:104:26: error: cannot find 'Darwin' in scope
102 |         var sent = 0
103 |         while sent < length {
104 |             let result = Darwin.write(sock, pointer + sent, Int(length - sent))
    |                          `- error: cannot find 'Darwin' in scope
105 |             if result <= 0 {
106 |                 throw SocketError.writeFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:120:21: error: cannot find 'Darwin' in scope
118 |     open func read() throws -> UInt8 {
119 |         var byte: UInt8 = 0
120 |         let count = Darwin.read(sock, &byte, 1)
    |                     `- error: cannot find 'Darwin' in scope
121 |         guard count > 0 else {
122 |             throw SocketError.recvFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:153:29: error: cannot find 'Darwin' in scope
151 |             // Compute next read length in bytes. The bytes read is never more than kBufferLength at once.
152 |             let readLength = offset + Socket.kBufferLength < length ? Socket.kBufferLength : length - offset
153 |             let bytesRead = Darwin.read(sock, baseAddress + offset, readLength)
    |                             `- error: cannot find 'Darwin' in scope
154 |             guard bytesRead > 0 else {
155 |                 throw SocketError.recvFailed(errorDescription())
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/8] Compiling Aoxiang Socket.swift
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:49:29: error: cannot assign value of type '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)' to type '(UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)'
 47 |         serveraddr.sin_port = port.bigEndian
 48 |         serveraddr.sin_addr = in_addr(s_addr: in_addr_t(0))
 49 |         serveraddr.sin_zero = (zero, zero, zero, zero, zero, zero, zero, zero)
    |                             `- error: cannot assign value of type '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)' to type '(UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)'
 50 |         self.sock = socket(internetLayerProtocol, Int32(transportLayerType), 0)
 51 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:50:51: error: initializer 'init(_:)' requires that '__socket_type' conform to 'BinaryFloatingPoint'
 48 |         serveraddr.sin_addr = in_addr(s_addr: in_addr_t(0))
 49 |         serveraddr.sin_zero = (zero, zero, zero, zero, zero, zero, zero, zero)
 50 |         self.sock = socket(internetLayerProtocol, Int32(transportLayerType), 0)
    |                                                   `- error: initializer 'init(_:)' requires that '__socket_type' conform to 'BinaryFloatingPoint'
 51 |
 52 |         // reuse socket address (for fix "Address already in use")
Swift.FixedWidthInteger.init:2:19: note: where 'T' = '__socket_type'
1 | protocol FixedWidthInteger {
2 | @inlinable public init<T>(_ source: T) where T : BinaryFloatingPoint}
  |                   `- note: where 'T' = '__socket_type'
3 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:28: error: cannot find 'Darwin' in scope
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                            `- error: cannot find 'Darwin' in scope
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:48: error: 'nil' requires a contextual type
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                                                `- error: 'nil' requires a contextual type
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:80:53: error: 'nil' requires a contextual type
 78 |
 79 |     public func accept() throws -> Socket {
 80 |         let clientSocket = Darwin.accept(sock, nil, nil)
    |                                                     `- error: 'nil' requires a contextual type
 81 |         if clientSocket == -1 {
 82 |             throw SocketError.acceptFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:88:9: error: cannot find 'Darwin' in scope
 86 |
 87 |     public func close() {
 88 |         Darwin.close(sock)
    |         `- error: cannot find 'Darwin' in scope
 89 |     }
 90 |
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:104:26: error: cannot find 'Darwin' in scope
102 |         var sent = 0
103 |         while sent < length {
104 |             let result = Darwin.write(sock, pointer + sent, Int(length - sent))
    |                          `- error: cannot find 'Darwin' in scope
105 |             if result <= 0 {
106 |                 throw SocketError.writeFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:120:21: error: cannot find 'Darwin' in scope
118 |     open func read() throws -> UInt8 {
119 |         var byte: UInt8 = 0
120 |         let count = Darwin.read(sock, &byte, 1)
    |                     `- error: cannot find 'Darwin' in scope
121 |         guard count > 0 else {
122 |             throw SocketError.recvFailed(errorDescription())
/host/spi-builder-workspace/Sources/Aoxiang/Socket.swift:153:29: error: cannot find 'Darwin' in scope
151 |             // Compute next read length in bytes. The bytes read is never more than kBufferLength at once.
152 |             let readLength = offset + Socket.kBufferLength < length ? Socket.kBufferLength : length - offset
153 |             let bytesRead = Darwin.read(sock, baseAddress + offset, readLength)
    |                             `- error: cannot find 'Darwin' in scope
154 |             guard bytesRead > 0 else {
155 |                 throw SocketError.recvFailed(errorDescription())
[3/8] Compiling Aoxiang HTTPResponse.swift
[4/8] Emitting module Aoxiang
[5/8] Compiling Aoxiang HTTPParser.swift
[6/8] Compiling Aoxiang HTTPRequest.swift
[7/8] Compiling Aoxiang HTTPRouter.swift
[8/8] Compiling Aoxiang HTTPServer.swift
BUILD FAILURE 6.1 linux