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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 swift-driver, reference 0.50800.0 (2353b3), with Swift 6.0 (beta) for macOS (SPM) on 15 Sep 2024 02:58:06 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

1555 |       stdoutStream <<< nextId <<< ": " <<< "input, "
1556 |       stdoutStream <<< "\"" <<< input.file <<< "\", " <<< input.type <<< "\n"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1557 |       inputIdMap[input] = nextId
1558 |       nextId += 1
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:25:14: warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
 23 | /// Mapping of input file paths to specific output files.
 24 | public struct OutputFileMap: Hashable, Codable {
 25 |   static let singleInputKey = try! VirtualPath.intern(path: ".")
    |              |- warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'singleInputKey' 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
 26 |
 27 |   /// The known mapping from input file to specific output files.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:325:17: note: consider making struct 'Handle' conform to the 'Sendable' protocol
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:198:11: warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
196 |     private struct CodingKeys: CodingKey {
197 |
198 |       let fileType: FileType
    |           `- warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
199 |
200 |       init(fileType: FileType) {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/FileType.swift:17:13: note: consider making enum 'FileType' conform to the 'Sendable' protocol
 15 | /// The raw values for these enumerations describe the default extension for
 16 | /// the file type.
 17 | public enum FileType: String, Hashable, CaseIterable, Codable {
    |             `- note: consider making enum 'FileType' conform to the 'Sendable' protocol
 18 |   /// Swift source file.
 19 |   case swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:80:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 78 |       break
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 81 |       stdoutStream.flush()
 82 |     case .parsableOutput:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:81:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
 81 |       stdoutStream.flush()
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 82 |     case .parsableOutput:
 83 |       let messages = constructJobBeganMessages(job: job, arguments: arguments, pid: pid)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:115:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
113 |       if !output.isEmpty {
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
116 |           stderrStream.flush()
117 |         }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:116:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
116 |           stderrStream.flush()
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
117 |         }
118 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:170:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
168 |     guard let json = try? message.toJSON() else { return }
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:171:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
172 |       stderrStream.flush()
173 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:172:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
173 |     }
174 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
[410/429] Compiling SwiftDriver ArgsResolver.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Execution/ArgsResolver.swift:20:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriver' may lead to instability during execution
 18 | import struct TSCBasic.AbsolutePath
 19 |
 20 | @_implementationOnly import Yams
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriver' may lead to instability during execution
 21 |
 22 | /// How the resolver is to handle usage of response files
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:44:10: warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  42 |     case integratedReplRemoved
  43 |     case cannotSpecify_OForMultipleOutputs
  44 |     case conflictingOptions(Option, Option)
     |          `- warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  45 |     case unableToLoadOutputFileMap(String, String)
  46 |     case unableToDecodeFrontendTargetInfo(String?, [String], String)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftOptions/Option.swift:35:15: note: struct 'Option' does not conform to the 'Sendable' protocol
 33 |
 34 | /// Describes a command-line option.
 35 | public struct Option {
    |               `- note: struct 'Option' does not conform to the 'Sendable' protocol
 36 |   /// The kind of option we have, which determines how it will be parsed.
 37 |   public enum Kind: Hashable {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:12:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'SwiftOptions'
  10 | //
  11 | //===----------------------------------------------------------------------===//
  12 | import SwiftOptions
     | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'SwiftOptions'
  13 |
  14 | import class Dispatch.DispatchQueue
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:44:10: warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  42 |     case integratedReplRemoved
  43 |     case cannotSpecify_OForMultipleOutputs
  44 |     case conflictingOptions(Option, Option)
     |          `- warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  45 |     case unableToLoadOutputFileMap(String, String)
  46 |     case unableToDecodeFrontendTargetInfo(String?, [String], String)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftOptions/Option.swift:35:15: note: struct 'Option' does not conform to the 'Sendable' protocol
 33 |
 34 | /// Describes a command-line option.
 35 | public struct Option {
    |               `- note: struct 'Option' does not conform to the 'Sendable' protocol
 36 |   /// The kind of option we have, which determines how it will be parsed.
 37 |   public enum Kind: Hashable {
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:412:21: warning: static property 'stderrDiagnosticsHandler' is not concurrency-safe because non-'Sendable' type 'DiagnosticsEngine.DiagnosticsHandler' (aka '(Diagnostic) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
 410 |
 411 |   /// Handler for emitting diagnostics to stderr.
 412 |   public static let stderrDiagnosticsHandler: DiagnosticsEngine.DiagnosticsHandler = { diagnostic in
     |                     |- warning: static property 'stderrDiagnosticsHandler' is not concurrency-safe because non-'Sendable' type 'DiagnosticsEngine.DiagnosticsHandler' (aka '(Diagnostic) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
     |                     |- note: annotate 'stderrDiagnosticsHandler' 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
 413 |     stdErrQueue.sync {
 414 |       let stream = stderrStream
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:414:20: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 412 |   public static let stderrDiagnosticsHandler: DiagnosticsEngine.DiagnosticsHandler = { diagnostic in
 413 |     stdErrQueue.sync {
 414 |       let stream = stderrStream
     |                    `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 415 |       if !(diagnostic.location is UnknownLocation) {
 416 |           stream <<< diagnostic.location.description <<< ": "
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:462:30: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 460 |     env: [String: String] = ProcessEnv.vars,
 461 |     diagnosticsEngine: DiagnosticsEngine = DiagnosticsEngine(handlers: [Driver.stderrDiagnosticsHandler]),
 462 |     fileSystem: FileSystem = localFileSystem,
     |                              `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 463 |     executor: DriverExecutor,
 464 |     integratedDriver: Bool = true,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1271:39: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1269 |   ) throws {
1270 |     if parsedOptions.hasArgument(.v) {
1271 |       try printVersion(outputStream: &stderrStream)
     |                                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1272 |     }
1273 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1286:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1284 |     if parsedOptions.contains(.driverPrintOutputFileMap) {
1285 |       if let outputFileMap = self.outputFileMap {
1286 |         stderrStream <<< outputFileMap.description
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1287 |         stderrStream.flush()
1288 |       } else {
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1287:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1285 |       if let outputFileMap = self.outputFileMap {
1286 |         stderrStream <<< outputFileMap.description
1287 |         stderrStream.flush()
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1288 |       } else {
1289 |         diagnosticEngine.emit(.error_no_output_file_map_specified)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1311:32: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1309 |     if parsedOptions.contains(.driverPrintGraphviz) {
1310 |       var serializer = DOTJobGraphSerializer(jobs: jobs)
1311 |       serializer.writeDOT(to: &stdoutStream)
     |                                `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1312 |       stdoutStream.flush()
1313 |       return
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1312:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1310 |       var serializer = DOTJobGraphSerializer(jobs: jobs)
1311 |       serializer.writeDOT(to: &stdoutStream)
1312 |       stdoutStream.flush()
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1313 |       return
1314 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1363:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1361 |       // versions.
1362 |       if inPlaceJob.kind == .versionRequest && !Driver.driverSourceVersion.isEmpty {
1363 |         stderrStream <<< "swift-driver version: " <<< Driver.driverSourceVersion <<< " "
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1364 |         stderrStream.flush()
1365 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1364:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1362 |       if inPlaceJob.kind == .versionRequest && !Driver.driverSourceVersion.isEmpty {
1363 |         stderrStream <<< "swift-driver version: " <<< Driver.driverSourceVersion <<< " "
1364 |         stderrStream.flush()
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1365 |       }
1366 |       // In verbose mode, print out the job
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1370:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1368 |         let arguments: [String] = try executor.resolver.resolveArgumentList(for: inPlaceJob,
1369 |                                                                             useResponseFiles: forceResponseFiles ? .forced : .heuristic)
1370 |         stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1371 |         stdoutStream.flush()
1372 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1371:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1369 |                                                                             useResponseFiles: forceResponseFiles ? .forced : .heuristic)
1370 |         stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
1371 |         stdoutStream.flush()
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1372 |       }
1373 |       try executor.execute(job: inPlaceJob,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1454:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1452 |
1453 |   private func printBindings(_ job: Job) {
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1455:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1453 |   private func printBindings(_ job: Job) {
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1456 |     stdoutStream <<< #"", inputs: ["#
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1456:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
1458 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1457:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1458 |
1459 |     stdoutStream <<< "], output: {"
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1459:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
1458 |
1459 |     stdoutStream <<< "], output: {"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1460 |
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1461:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1459 |     stdoutStream <<< "], output: {"
1460 |
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1462 |
1463 |     stdoutStream <<< "}"
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1463:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
1462 |
1463 |     stdoutStream <<< "}"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1464 |     stdoutStream <<< "\n"
1465 |     stdoutStream.flush()
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1464:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1462 |
1463 |     stdoutStream <<< "}"
1464 |     stdoutStream <<< "\n"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1465 |     stdoutStream.flush()
1466 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1465:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1463 |     stdoutStream <<< "}"
1464 |     stdoutStream <<< "\n"
1465 |     stdoutStream.flush()
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1466 |   }
1467 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1475:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1473 |   private func printActions(_ jobs: [Job]) {
1474 |     defer {
1475 |       stdoutStream.flush()
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1476 |     }
1477 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1535:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1533 |
1534 |       // Print current Job
1535 |       stdoutStream <<< nextId <<< ": " <<< job.kind.rawValue <<< ", {"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1536 |       switch job.kind {
1537 |       // Don't sort for compile jobs. Puts pch last
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1539:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1537 |       // Don't sort for compile jobs. Puts pch last
1538 |       case .compile:
1539 |         stdoutStream <<< inputIds.map(\.description).joined(separator: ", ")
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1540 |       default:
1541 |         stdoutStream <<< inputIds.sorted().map(\.description).joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1541:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1539 |         stdoutStream <<< inputIds.map(\.description).joined(separator: ", ")
1540 |       default:
1541 |         stdoutStream <<< inputIds.sorted().map(\.description).joined(separator: ", ")
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1542 |       }
1543 |       var typeName = job.outputs.first?.type.name
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1547:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1545 |         typeName = "none"
1546 |       }
1547 |       stdoutStream <<< "}, " <<< typeName! <<< "\n"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1548 |       jobIdMap[job] = nextId
1549 |       nextId += 1
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1555:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1553 |   private static func printInputIfNew(_ input: TypedVirtualPath, inputIdMap: inout [TypedVirtualPath: UInt], nextId: inout UInt) {
1554 |     if inputIdMap[input] == nil {
1555 |       stdoutStream <<< nextId <<< ": " <<< "input, "
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1556 |       stdoutStream <<< "\"" <<< input.file <<< "\", " <<< input.type <<< "\n"
1557 |       inputIdMap[input] = nextId
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1556:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1554 |     if inputIdMap[input] == nil {
1555 |       stdoutStream <<< nextId <<< ": " <<< "input, "
1556 |       stdoutStream <<< "\"" <<< input.file <<< "\", " <<< input.type <<< "\n"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1557 |       inputIdMap[input] = nextId
1558 |       nextId += 1
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:25:14: warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
 23 | /// Mapping of input file paths to specific output files.
 24 | public struct OutputFileMap: Hashable, Codable {
 25 |   static let singleInputKey = try! VirtualPath.intern(path: ".")
    |              |- warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'singleInputKey' 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
 26 |
 27 |   /// The known mapping from input file to specific output files.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:325:17: note: consider making struct 'Handle' conform to the 'Sendable' protocol
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:198:11: warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
196 |     private struct CodingKeys: CodingKey {
197 |
198 |       let fileType: FileType
    |           `- warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
199 |
200 |       init(fileType: FileType) {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/FileType.swift:17:13: note: consider making enum 'FileType' conform to the 'Sendable' protocol
 15 | /// The raw values for these enumerations describe the default extension for
 16 | /// the file type.
 17 | public enum FileType: String, Hashable, CaseIterable, Codable {
    |             `- note: consider making enum 'FileType' conform to the 'Sendable' protocol
 18 |   /// Swift source file.
 19 |   case swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:80:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 78 |       break
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 81 |       stdoutStream.flush()
 82 |     case .parsableOutput:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:81:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
 81 |       stdoutStream.flush()
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 82 |     case .parsableOutput:
 83 |       let messages = constructJobBeganMessages(job: job, arguments: arguments, pid: pid)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:115:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
113 |       if !output.isEmpty {
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
116 |           stderrStream.flush()
117 |         }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:116:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
116 |           stderrStream.flush()
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
117 |         }
118 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:170:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
168 |     guard let json = try? message.toJSON() else { return }
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:171:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
172 |       stderrStream.flush()
173 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:172:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
173 |     }
174 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
[411/429] Compiling SwiftDriver DriverExecutor.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Execution/ArgsResolver.swift:20:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriver' may lead to instability during execution
 18 | import struct TSCBasic.AbsolutePath
 19 |
 20 | @_implementationOnly import Yams
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriver' may lead to instability during execution
 21 |
 22 | /// How the resolver is to handle usage of response files
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:44:10: warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  42 |     case integratedReplRemoved
  43 |     case cannotSpecify_OForMultipleOutputs
  44 |     case conflictingOptions(Option, Option)
     |          `- warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  45 |     case unableToLoadOutputFileMap(String, String)
  46 |     case unableToDecodeFrontendTargetInfo(String?, [String], String)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftOptions/Option.swift:35:15: note: struct 'Option' does not conform to the 'Sendable' protocol
 33 |
 34 | /// Describes a command-line option.
 35 | public struct Option {
    |               `- note: struct 'Option' does not conform to the 'Sendable' protocol
 36 |   /// The kind of option we have, which determines how it will be parsed.
 37 |   public enum Kind: Hashable {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:12:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'SwiftOptions'
  10 | //
  11 | //===----------------------------------------------------------------------===//
  12 | import SwiftOptions
     | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'SwiftOptions'
  13 |
  14 | import class Dispatch.DispatchQueue
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:44:10: warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  42 |     case integratedReplRemoved
  43 |     case cannotSpecify_OForMultipleOutputs
  44 |     case conflictingOptions(Option, Option)
     |          `- warning: associated value 'conflictingOptions' of 'Sendable'-conforming enum 'Error' has non-sendable type 'Option'; this is an error in the Swift 6 language mode
  45 |     case unableToLoadOutputFileMap(String, String)
  46 |     case unableToDecodeFrontendTargetInfo(String?, [String], String)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftOptions/Option.swift:35:15: note: struct 'Option' does not conform to the 'Sendable' protocol
 33 |
 34 | /// Describes a command-line option.
 35 | public struct Option {
    |               `- note: struct 'Option' does not conform to the 'Sendable' protocol
 36 |   /// The kind of option we have, which determines how it will be parsed.
 37 |   public enum Kind: Hashable {
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:412:21: warning: static property 'stderrDiagnosticsHandler' is not concurrency-safe because non-'Sendable' type 'DiagnosticsEngine.DiagnosticsHandler' (aka '(Diagnostic) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
 410 |
 411 |   /// Handler for emitting diagnostics to stderr.
 412 |   public static let stderrDiagnosticsHandler: DiagnosticsEngine.DiagnosticsHandler = { diagnostic in
     |                     |- warning: static property 'stderrDiagnosticsHandler' is not concurrency-safe because non-'Sendable' type 'DiagnosticsEngine.DiagnosticsHandler' (aka '(Diagnostic) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
     |                     |- note: annotate 'stderrDiagnosticsHandler' 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
 413 |     stdErrQueue.sync {
 414 |       let stream = stderrStream
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:414:20: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 412 |   public static let stderrDiagnosticsHandler: DiagnosticsEngine.DiagnosticsHandler = { diagnostic in
 413 |     stdErrQueue.sync {
 414 |       let stream = stderrStream
     |                    `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 415 |       if !(diagnostic.location is UnknownLocation) {
 416 |           stream <<< diagnostic.location.description <<< ": "
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:462:30: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 460 |     env: [String: String] = ProcessEnv.vars,
 461 |     diagnosticsEngine: DiagnosticsEngine = DiagnosticsEngine(handlers: [Driver.stderrDiagnosticsHandler]),
 462 |     fileSystem: FileSystem = localFileSystem,
     |                              `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 463 |     executor: DriverExecutor,
 464 |     integratedDriver: Bool = true,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1271:39: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1269 |   ) throws {
1270 |     if parsedOptions.hasArgument(.v) {
1271 |       try printVersion(outputStream: &stderrStream)
     |                                       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1272 |     }
1273 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1286:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1284 |     if parsedOptions.contains(.driverPrintOutputFileMap) {
1285 |       if let outputFileMap = self.outputFileMap {
1286 |         stderrStream <<< outputFileMap.description
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1287 |         stderrStream.flush()
1288 |       } else {
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1287:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1285 |       if let outputFileMap = self.outputFileMap {
1286 |         stderrStream <<< outputFileMap.description
1287 |         stderrStream.flush()
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1288 |       } else {
1289 |         diagnosticEngine.emit(.error_no_output_file_map_specified)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1311:32: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1309 |     if parsedOptions.contains(.driverPrintGraphviz) {
1310 |       var serializer = DOTJobGraphSerializer(jobs: jobs)
1311 |       serializer.writeDOT(to: &stdoutStream)
     |                                `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1312 |       stdoutStream.flush()
1313 |       return
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1312:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1310 |       var serializer = DOTJobGraphSerializer(jobs: jobs)
1311 |       serializer.writeDOT(to: &stdoutStream)
1312 |       stdoutStream.flush()
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1313 |       return
1314 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1363:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1361 |       // versions.
1362 |       if inPlaceJob.kind == .versionRequest && !Driver.driverSourceVersion.isEmpty {
1363 |         stderrStream <<< "swift-driver version: " <<< Driver.driverSourceVersion <<< " "
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1364 |         stderrStream.flush()
1365 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1364:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1362 |       if inPlaceJob.kind == .versionRequest && !Driver.driverSourceVersion.isEmpty {
1363 |         stderrStream <<< "swift-driver version: " <<< Driver.driverSourceVersion <<< " "
1364 |         stderrStream.flush()
     |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1365 |       }
1366 |       // In verbose mode, print out the job
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1370:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1368 |         let arguments: [String] = try executor.resolver.resolveArgumentList(for: inPlaceJob,
1369 |                                                                             useResponseFiles: forceResponseFiles ? .forced : .heuristic)
1370 |         stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1371 |         stdoutStream.flush()
1372 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1371:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1369 |                                                                             useResponseFiles: forceResponseFiles ? .forced : .heuristic)
1370 |         stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
1371 |         stdoutStream.flush()
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1372 |       }
1373 |       try executor.execute(job: inPlaceJob,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1454:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1452 |
1453 |   private func printBindings(_ job: Job) {
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1455:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1453 |   private func printBindings(_ job: Job) {
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1456 |     stdoutStream <<< #"", inputs: ["#
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1456:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1454 |     stdoutStream <<< #"# ""# <<< targetTriple.triple
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
1458 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1457:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1455 |     stdoutStream <<< #"" - ""# <<< job.tool.basename
1456 |     stdoutStream <<< #"", inputs: ["#
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1458 |
1459 |     stdoutStream <<< "], output: {"
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1459:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1457 |     stdoutStream <<< job.displayInputs.map { "\"" + $0.file.name + "\"" }.joined(separator: ", ")
1458 |
1459 |     stdoutStream <<< "], output: {"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1460 |
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1461:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1459 |     stdoutStream <<< "], output: {"
1460 |
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1462 |
1463 |     stdoutStream <<< "}"
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1463:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1461 |     stdoutStream <<< job.outputs.map { $0.type.name + ": \"" + $0.file.name + "\"" }.joined(separator: ", ")
1462 |
1463 |     stdoutStream <<< "}"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1464 |     stdoutStream <<< "\n"
1465 |     stdoutStream.flush()
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1464:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1462 |
1463 |     stdoutStream <<< "}"
1464 |     stdoutStream <<< "\n"
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1465 |     stdoutStream.flush()
1466 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1465:5: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1463 |     stdoutStream <<< "}"
1464 |     stdoutStream <<< "\n"
1465 |     stdoutStream.flush()
     |     `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1466 |   }
1467 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1475:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1473 |   private func printActions(_ jobs: [Job]) {
1474 |     defer {
1475 |       stdoutStream.flush()
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1476 |     }
1477 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1535:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1533 |
1534 |       // Print current Job
1535 |       stdoutStream <<< nextId <<< ": " <<< job.kind.rawValue <<< ", {"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1536 |       switch job.kind {
1537 |       // Don't sort for compile jobs. Puts pch last
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1539:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1537 |       // Don't sort for compile jobs. Puts pch last
1538 |       case .compile:
1539 |         stdoutStream <<< inputIds.map(\.description).joined(separator: ", ")
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1540 |       default:
1541 |         stdoutStream <<< inputIds.sorted().map(\.description).joined(separator: ", ")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1541:9: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1539 |         stdoutStream <<< inputIds.map(\.description).joined(separator: ", ")
1540 |       default:
1541 |         stdoutStream <<< inputIds.sorted().map(\.description).joined(separator: ", ")
     |         `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1542 |       }
1543 |       var typeName = job.outputs.first?.type.name
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1547:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1545 |         typeName = "none"
1546 |       }
1547 |       stdoutStream <<< "}, " <<< typeName! <<< "\n"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1548 |       jobIdMap[job] = nextId
1549 |       nextId += 1
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1555:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1553 |   private static func printInputIfNew(_ input: TypedVirtualPath, inputIdMap: inout [TypedVirtualPath: UInt], nextId: inout UInt) {
1554 |     if inputIdMap[input] == nil {
1555 |       stdoutStream <<< nextId <<< ": " <<< "input, "
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1556 |       stdoutStream <<< "\"" <<< input.file <<< "\", " <<< input.type <<< "\n"
1557 |       inputIdMap[input] = nextId
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/Driver.swift:1556:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1554 |     if inputIdMap[input] == nil {
1555 |       stdoutStream <<< nextId <<< ": " <<< "input, "
1556 |       stdoutStream <<< "\"" <<< input.file <<< "\", " <<< input.type <<< "\n"
     |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
1557 |       inputIdMap[input] = nextId
1558 |       nextId += 1
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:25:14: warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
 23 | /// Mapping of input file paths to specific output files.
 24 | public struct OutputFileMap: Hashable, Codable {
 25 |   static let singleInputKey = try! VirtualPath.intern(path: ".")
    |              |- warning: static property 'singleInputKey' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'singleInputKey' 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
 26 |
 27 |   /// The known mapping from input file to specific output files.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:325:17: note: consider making struct 'Handle' conform to the 'Sendable' protocol
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/OutputFileMap.swift:198:11: warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
196 |     private struct CodingKeys: CodingKey {
197 |
198 |       let fileType: FileType
    |           `- warning: stored property 'fileType' of 'Sendable'-conforming struct 'CodingKeys' has non-sendable type 'FileType'; this is an error in the Swift 6 language mode
199 |
200 |       init(fileType: FileType) {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/FileType.swift:17:13: note: consider making enum 'FileType' conform to the 'Sendable' protocol
 15 | /// The raw values for these enumerations describe the default extension for
 16 | /// the file type.
 17 | public enum FileType: String, Hashable, CaseIterable, Codable {
    |             `- note: consider making enum 'FileType' conform to the 'Sendable' protocol
 18 |   /// Swift source file.
 19 |   case swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:80:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 78 |       break
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 81 |       stdoutStream.flush()
 82 |     case .parsableOutput:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:81:7: warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 79 |     case .verbose:
 80 |       stdoutStream <<< arguments.map { $0.spm_shellEscaped() }.joined(separator: " ") <<< "\n"
 81 |       stdoutStream.flush()
    |       `- warning: reference to var 'stdoutStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 82 |     case .parsableOutput:
 83 |       let messages = constructJobBeganMessages(job: job, arguments: arguments, pid: pid)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:790:12: note: var declared here
788 |
789 | /// Public stdout stream instance.
790 | public var stdoutStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
791 |     filePointer: TSCLibc.stdout,
792 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:115:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
113 |       if !output.isEmpty {
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
116 |           stderrStream.flush()
117 |         }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:116:11: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
114 |         Driver.stdErrQueue.sync {
115 |           stderrStream <<< output
116 |           stderrStream.flush()
    |           `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
117 |         }
118 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:170:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
168 |     guard let json = try? message.toJSON() else { return }
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:171:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
169 |     Driver.stdErrQueue.sync {
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
172 |       stderrStream.flush()
173 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Driver/ToolExecutionDelegate.swift:172:7: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
170 |       stderrStream <<< json.count <<< "\n"
171 |       stderrStream <<< String(data: json, encoding: .utf8)! <<< "\n"
172 |       stderrStream.flush()
    |       `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
173 |     }
174 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
[412/429] Compiling SwiftDriver PredictableRandomNumberGenerator.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[413/429] Compiling SwiftDriver RelativePathAdditions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[414/429] Compiling SwiftDriver Sanitizer.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[415/429] Compiling SwiftDriver StringAdditions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[416/429] Compiling SwiftDriver System.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[417/429] Compiling SwiftDriver Triple+Platforms.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[418/429] Compiling SwiftDriver Triple.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[419/429] Compiling SwiftDriver TypedVirtualPath.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[420/429] Compiling SwiftDriver VersionExtensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[421/429] Compiling SwiftDriver VirtualPath.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple+Platforms.swift:411:14: warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
334 |   ///
335 |   /// - SeeAlso: `Triple.supports(_:)`
336 |   public struct FeatureAvailability {
    |                 `- note: consider making struct 'FeatureAvailability' conform to the 'Sendable' protocol
337 |
338 |     public enum Availability {
    :
409 |   /// ARC natively in their respective copies of the Objective-C runtime,
410 |   /// and therefore do not require additional support libraries.
411 |   static let nativeARC = Self(
    |              |- warning: static property 'nativeARC' is not concurrency-safe because non-'Sendable' type 'Triple.FeatureAvailability' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate 'nativeARC' 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
412 |     macOS: .available(since: Triple.Version(10, 11, 0)),
413 |     iOS: .available(since: Triple.Version(9, 0, 0)),
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/Triple.swift:64:23: warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
  61 |
  62 |   /// Represents a version that may be present in the target triple.
  63 |   public struct Version: Equatable, Comparable, CustomStringConvertible {
     |                 `- note: consider making struct 'Version' conform to the 'Sendable' protocol
  64 |     public static let zero = Version(0, 0, 0)
     |                       |- warning: static property 'zero' is not concurrency-safe because non-'Sendable' type 'Triple.Version' may have shared mutable state; this is an error in the Swift 6 language mode
     |                       |- note: annotate 'zero' 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
  65 |
  66 |     public var major: Int
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:33:22: warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 | /// A virtual path.
 32 | public enum VirtualPath: Hashable {
 33 |   private static var pathCache = PathCache()
    |                      |- warning: static property 'pathCache' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'pathCache' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'pathCache' 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
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:35:22: warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 33 |   private static var pathCache = PathCache()
 34 |
 35 |   private static var temporaryFileStore = TemporaryFileStore()
    |                      |- warning: static property 'temporaryFileStore' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: convert 'temporaryFileStore' to a 'let' constant to make 'Sendable' shared state immutable
    |                      |- note: annotate 'temporaryFileStore' 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
 36 |
 37 |   /// A relative path that has not been resolved based on the current working
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:332:23: warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
330 |     }
331 |
332 |     public static let standardOutput = Handle(-1)
    |                       |- warning: static property 'standardOutput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardOutput' 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
333 |     public static let standardInput = Handle(-2)
334 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriver/Utilities/VirtualPath.swift:333:23: warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
323 |   /// in the global path table ensures we only pay the cost at most once per
324 |   /// path string.
325 |   public struct Handle {
    |                 `- note: consider making struct 'Handle' conform to the 'Sendable' protocol
326 |     fileprivate var core: Int
327 |
    :
331 |
332 |     public static let standardOutput = Handle(-1)
333 |     public static let standardInput = Handle(-2)
    |                       |- warning: static property 'standardInput' is not concurrency-safe because non-'Sendable' type 'VirtualPath.Handle' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'standardInput' 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
334 |   }
335 |
[421/429] Write Objects.LinkFileList
[423/433] Compiling SwiftDriverExecution llbuild.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/llbuild.swift:24:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 22 | // We either import the llbuildSwift shared library or the llbuild framework.
 23 | #if canImport(llbuildSwift)
 24 | @_implementationOnly import llbuildSwift
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 25 | @_implementationOnly import llbuild
 26 | #else
[423/433] Linking libSwiftDriverDynamic.dylib
[425/433] Compiling SwiftDriverExecution SwiftDriverExecutor.swift
[426/433] Compiling SwiftDriverExecution MultiJobExecutor.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/MultiJobExecutor.swift:33:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 31 | // We either import the llbuildSwift shared library or the llbuild framework.
 32 | #if canImport(llbuildSwift)
 33 | @_implementationOnly import llbuildSwift
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 34 | @_implementationOnly import llbuild
 35 | #else
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/MultiJobExecutor.swift:561:7: warning: capture of 'self' with non-sendable type 'ExecuteJobRule' in a `@Sendable` closure; this is an error in the Swift 6 language mode
508 | }
509 | /// A rule for a single compiler invocation.
510 | class ExecuteJobRule: LLBuildRule {
    |       `- note: class 'ExecuteJobRule' does not conform to the 'Sendable' protocol
511 |   struct RuleKey: LLBuildKey {
512 |     typealias BuildValue = DriverBuildValue
    :
559 |     // is we should call it after inputsAvailable is called.
560 |     context.jobQueue.addOperation {
561 |       self.executeJob(engine)
    |       `- warning: capture of 'self' with non-sendable type 'ExecuteJobRule' in a `@Sendable` closure; this is an error in the Swift 6 language mode
562 |     }
563 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/MultiJobExecutor.swift:561:23: warning: capture of 'engine' with non-sendable type 'LLTaskBuildEngine' in a `@Sendable` closure; this is an error in the Swift 6 language mode
559 |     // is we should call it after inputsAvailable is called.
560 |     context.jobQueue.addOperation {
561 |       self.executeJob(engine)
    |                       `- warning: capture of 'engine' with non-sendable type 'LLTaskBuildEngine' in a `@Sendable` closure; this is an error in the Swift 6 language mode
562 |     }
563 |   }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/llbuild.swift:117:7: note: class 'LLTaskBuildEngine' does not conform to the 'Sendable' protocol
115 |
116 | // FIXME: Rename to something else.
117 | class LLTaskBuildEngine {
    |       `- note: class 'LLTaskBuildEngine' does not conform to the 'Sendable' protocol
118 |
119 |   let engine: TaskBuildEngine
[427/433] Emitting module SwiftDriverExecution
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/MultiJobExecutor.swift:33:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 31 | // We either import the llbuildSwift shared library or the llbuild framework.
 32 | #if canImport(llbuildSwift)
 33 | @_implementationOnly import llbuildSwift
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 34 | @_implementationOnly import llbuild
 35 | #else
/Users/admin/builder/spi-builder-workspace/Sources/SwiftDriverExecution/llbuild.swift:24:22: warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 22 | // We either import the llbuildSwift shared library or the llbuild framework.
 23 | #if canImport(llbuildSwift)
 24 | @_implementationOnly import llbuildSwift
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'SwiftDriverExecution' may lead to instability during execution
 25 | @_implementationOnly import llbuild
 26 | #else
[428/443] Emitting module swift_driver
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:68:5: warning: setter for 'arguments' is deprecated: Do not modify CommandLine.arguments. It will become read-only in a future version of Swift.
 66 |
 67 |   if ProcessEnv.vars["SWIFT_ENABLE_EXPLICIT_MODULE"] != nil {
 68 |     CommandLine.arguments.append("-explicit-module-build")
    |     `- warning: setter for 'arguments' is deprecated: Do not modify CommandLine.arguments. It will become read-only in a future version of Swift.
 69 |   }
 70 |
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:80:11: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 78 |
 79 |     guard let subcommandPath = subcommandPath,
 80 |           localFileSystem.exists(subcommandPath) else {
    |           `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 81 |       throw Driver.Error.unknownOrMissingSubcommand(subcommand)
 82 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:94:54: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 92 |   let executor = try SwiftDriverExecutor(diagnosticsEngine: diagnosticsEngine,
 93 |                                          processSet: processSet,
 94 |                                          fileSystem: localFileSystem,
    |                                                      `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 95 |                                          env: ProcessEnv.vars)
 96 |   var driver = try Driver(args: arguments,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
[429/443] Compiling swift_driver main.swift
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:68:5: warning: setter for 'arguments' is deprecated: Do not modify CommandLine.arguments. It will become read-only in a future version of Swift.
 66 |
 67 |   if ProcessEnv.vars["SWIFT_ENABLE_EXPLICIT_MODULE"] != nil {
 68 |     CommandLine.arguments.append("-explicit-module-build")
    |     `- warning: setter for 'arguments' is deprecated: Do not modify CommandLine.arguments. It will become read-only in a future version of Swift.
 69 |   }
 70 |
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:80:11: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 78 |
 79 |     guard let subcommandPath = subcommandPath,
 80 |           localFileSystem.exists(subcommandPath) else {
    |           `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 81 |       throw Driver.Error.unknownOrMissingSubcommand(subcommand)
 82 |     }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:94:54: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 92 |   let executor = try SwiftDriverExecutor(diagnosticsEngine: diagnosticsEngine,
 93 |                                          processSet: processSet,
 94 |                                          fileSystem: localFileSystem,
    |                                                      `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 95 |                                          env: ProcessEnv.vars)
 96 |   var driver = try Driver(args: arguments,
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:41:6: error: main actor-isolated var 'driverInterrupted' can not be referenced from a nonisolated context
 37 | let interruptSignalSource = DispatchSource.makeSignalSource(signal: SIGINT)
 38 | let diagnosticsEngine = DiagnosticsEngine(handlers: [Driver.stderrDiagnosticsHandler])
 39 | var driverInterrupted = false
    |     `- note: var declared here
 40 | func getExitCode(_ code: Int32) -> Int32 {
    |      `- note: add '@MainActor' to make global function 'getExitCode' part of global actor 'MainActor'
 41 |   if driverInterrupted {
    |      `- error: main actor-isolated var 'driverInterrupted' can not be referenced from a nonisolated context
 42 |     interruptSignalSource.cancel()
 43 | #if os(Windows)
/Users/admin/builder/spi-builder-workspace/Sources/swift-driver/main.swift:42:5: warning: main actor-isolated let 'interruptSignalSource' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
 35 | import enum TSCUtility.Diagnostics
 36 |
 37 | let interruptSignalSource = DispatchSource.makeSignalSource(signal: SIGINT)
    |     `- note: let declared here
 38 | let diagnosticsEngine = DiagnosticsEngine(handlers: [Driver.stderrDiagnosticsHandler])
 39 | var driverInterrupted = false
 40 | func getExitCode(_ code: Int32) -> Int32 {
    |      `- note: add '@MainActor' to make global function 'getExitCode' part of global actor 'MainActor'
 41 |   if driverInterrupted {
 42 |     interruptSignalSource.cancel()
    |     `- warning: main actor-isolated let 'interruptSignalSource' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
 43 | #if os(Windows)
 44 |     TerminateProcess(GetCurrentProcess(), UINT(0xC0000000 | UINT(2)))
[430/443] Compiling TestUtilities PathExtensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:85:17: warning: 'init(_:relativeTo:)' is deprecated: use throwing `init(validating:relativeTo:)` variant instead
 83 |   // the SDK-versioned sub-directory.
 84 |   if outputDir.basename == "prebuilt-modules" {
 85 |     outputDir = AbsolutePath(collector.versionString, relativeTo: outputDir)
    |                 `- warning: 'init(_:relativeTo:)' is deprecated: use throwing `init(validating:relativeTo:)` variant instead
 86 |   }
 87 |   if !localFileSystem.exists(outputDir) {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:95:18: warning: 'init(_:relativeTo:)' is deprecated: use throwing `init(validating:relativeTo:)` variant instead
 93 |     swiftcPath = try VirtualPath(path: swiftcPathRaw).absolutePath!
 94 |   } else {
 95 |     swiftcPath = AbsolutePath("Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc",
    |                  `- warning: 'init(_:relativeTo:)' is deprecated: use throwing `init(validating:relativeTo:)` variant instead
 96 |                               relativeTo: sdkPath.parentDirectory
 97 |                                                  .parentDirectory
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:74:7: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 72 |     exit(1)
 73 |   }
 74 |   if !localFileSystem.exists(sdkPath) {
    |       `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 75 |     diagnosticsEngine.emit(error: "cannot find sdk: \(sdkPath.pathString)")
 76 |     exit(1)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:87:7: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 85 |     outputDir = AbsolutePath(collector.versionString, relativeTo: outputDir)
 86 |   }
 87 |   if !localFileSystem.exists(outputDir) {
    |       `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 88 |     try localFileSystem.createDirectory(outputDir, recursive: true)
 89 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:88:9: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 86 |   }
 87 |   if !localFileSystem.exists(outputDir) {
 88 |     try localFileSystem.createDirectory(outputDir, recursive: true)
    |         `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 89 |   }
 90 |   let swiftcPathRaw = ProcessEnv.vars["SWIFT_EXEC"]
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:102:7: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
100 |                                                  .parentDirectory)
101 |   }
102 |   if !localFileSystem.exists(swiftcPath) {
    |       `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
103 |     diagnosticsEngine.emit(error: "cannot find swift compiler: \(swiftcPath.pathString)")
104 |     exit(1)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:108:6: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
106 |
107 |   let sysVersionFile = outputDir.appending(component: "SystemVersion.plist")
108 |   if localFileSystem.exists(sysVersionFile) {
    |      `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
109 |     try localFileSystem.removeFileTree(sysVersionFile)
110 |   }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:109:9: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
107 |   let sysVersionFile = outputDir.appending(component: "SystemVersion.plist")
108 |   if localFileSystem.exists(sysVersionFile) {
109 |     try localFileSystem.removeFileTree(sysVersionFile)
    |         `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
110 |   }
111 |   // Copy $SDK/System/Library/CoreServices/SystemVersion.plist file from the SDK
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:114:7: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
112 |   // into the prebuilt module file to keep track of which SDK build we are generating
113 |   // the modules from.
114 |   try localFileSystem.copy(from: sdkPath.appending(component: "System")
    |       `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
115 |                               .appending(component: "Library")
116 |                               .appending(component: "CoreServices")
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:128:9: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
126 |   try withTemporaryFile(suffix: ".swift") {
127 |     let tempPath = $0.path
128 |     try localFileSystem.writeFileContents(tempPath, body: {
    |         `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
129 |       for module in allModules {
130 |         $0 <<< "import " <<< module <<< "\n"
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:135:56: warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
133 |     let executor = try SwiftDriverExecutor(diagnosticsEngine: diagnosticsEngine,
134 |                                            processSet: processSet,
135 |                                            fileSystem: localFileSystem,
    |                                                        `- warning: reference to var 'localFileSystem' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
136 |                                            env: ProcessEnv.vars)
137 |     var args = ["swiftc",
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/FileSystem.swift:1163:12: note: var declared here
1161 |
1162 | /// Public access to the local FS proxy.
1163 | public var localFileSystem: FileSystem = LocalFileSystem()
     |            `- note: var declared here
1164 |
1165 | extension FileSystem {
/Users/admin/builder/spi-builder-workspace/Sources/swift-build-sdk-interfaces/main.swift:157:9: warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
155 |     if verbose {
156 |       Driver.stdErrQueue.sync {
157 |         stderrStream <<< "job count: \(jobs.count + danglingJobs.count)\n"
    |         `- warning: reference to var 'stderrStream' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
158 |         stderrStream.flush()
159 |       }
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCBasic/WritableByteStream.swift:795:12: note: var declared here
793 |
794 | /// Public stderr stream instance.
795 | public var stderrStream: ThreadSafeOutputByteStream = try! ThreadSafeOutputByteStream(LocalFileOutputByteStream(
    |            `- note: var declared here
796 |     filePointer: TSCLibc.stderr,
797 |     closeOnDeinit: false))
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BUILD FAILURE 6.0 macosSpm