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Build Information

Successful build of SwiftFileStore, reference v0.7.0 (61aa52), with Swift 6.1 for Wasm on 29 May 2025 03:40:21 UTC.

Swift 6 data race errors: 5

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.63.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/juyan/swift-filestore.git
Reference: v0.7.0
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/juyan/swift-filestore
 * tag               v0.7.0     -> FETCH_HEAD
HEAD is now at 61aa52c platform support (#9)
Cloned https://github.com/juyan/swift-filestore.git
Revision (git rev-parse @):
61aa52c514e39a70c17ce6421d70807f46282154
SUCCESS checkout https://github.com/juyan/swift-filestore.git at v0.7.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/juyan/swift-filestore.git
https://github.com/juyan/swift-filestore.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftFileStore",
  "name" : "SwiftFileStore",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftFileStore",
      "targets" : [
        "SwiftFileStore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftFileStoreTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftFileStoreTests",
      "path" : "Tests/SwiftFileStoreTests",
      "sources" : [
        "FileObjectStoreTests.swift",
        "MemoryObjectStoreTests.swift",
        "PersistenceLogTests.swift",
        "TestObject.swift",
        "XCTestCase+.swift"
      ],
      "target_dependencies" : [
        "SwiftFileStore"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftFileStore",
      "module_type" : "SwiftTarget",
      "name" : "SwiftFileStore",
      "path" : "Sources/SwiftFileStore",
      "product_memberships" : [
        "SwiftFileStore"
      ],
      "sources" : [
        "FileObjectStore.swift",
        "JSONDataRepresentable.swift",
        "MemoryObjectStore.swift",
        "ObjectStore+Expiry.swift",
        "ObjectStore.swift",
        "Observer.swift",
        "ObserverManager.swift",
        "PersistenceLog.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:7e37457820e5f17452a98118754f345f2619722c485f2db0d8b666940a83afd2
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/10] Compiling SwiftFileStore FileObjectStore.swift
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:114:1: warning: extension declares a conformance of imported type 'String' to imported protocol 'Error'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
112 | }
113 |
114 | extension String: Error {}
    | |- warning: extension declares a conformance of imported type 'String' to imported protocol 'Error'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
115 |
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:71:46: warning: non-sendable result type 'Observer' cannot be sent from actor-isolated context in call to instance method 'getObserver(key:namespace:)'; this is an error in the Swift 6 language mode
 69 |
 70 |     public func observe<T>(key: String, namespace: String, objectType: T.Type) async -> AsyncThrowingStream<T?, Error> where T: DataRepresentable {
 71 |         let observer = await observerManager.getObserver(key: key, namespace: namespace)
    |                                              `- warning: non-sendable result type 'Observer' cannot be sent from actor-isolated context in call to instance method 'getObserver(key:namespace:)'; this is an error in the Swift 6 language mode
 72 |         do {
 73 |             let existingValue = try await read(key: key, namespace: namespace, objectType: objectType)
/host/spi-builder-workspace/Sources/SwiftFileStore/Observer.swift:7:13: note: class 'Observer' does not conform to the 'Sendable' protocol
 5 | import Foundation
 6 |
 7 | final class Observer {
   |             `- note: class 'Observer' does not conform to the 'Sendable' protocol
 8 |     let key: String
 9 |     let namespace: String
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:87:21: warning: capture of 'observer' with non-sendable type 'Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 85 |                 }
 86 |                 continuation.onTermination = { @Sendable _ in
 87 |                     observer.callbacks.removeValue(forKey: callbackID)
    |                     `- warning: capture of 'observer' with non-sendable type 'Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 88 |                 }
 89 |             }
/host/spi-builder-workspace/Sources/SwiftFileStore/Observer.swift:7:13: note: class 'Observer' does not conform to the 'Sendable' protocol
 5 | import Foundation
 6 |
 7 | final class Observer {
   |             `- note: class 'Observer' does not conform to the 'Sendable' protocol
 8 |     let key: String
 9 |     let namespace: String
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:41:14: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 39 |         try FileManager.default.createDirIfNotExist(url: dirURL)
 40 |         try object.serialize().write(to: fileURL)
 41 |         Task {
    |              `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 42 |             await observerManager.publishValue(key: key, namespace: namespace, value: object)
    |                   `- note: closure captures 'self' which is accessible to code in the current task
 43 |         }
 44 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:42:35: warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
 40 |         try object.serialize().write(to: fileURL)
 41 |         Task {
 42 |             await observerManager.publishValue(key: key, namespace: namespace, value: object)
    |                                   |- warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
    |                                   `- note: sending task-isolated 'object' to actor-isolated instance method 'publishValue(key:namespace:value:)' risks causing data races between actor-isolated and task-isolated uses
 43 |         }
 44 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:52:14: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 50 |             try FileManager.default.removeItem(at: fileURL)
 51 |         }
 52 |         Task {
    |              `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 53 |             await observerManager.publishRemoval(namespace: namespace, key: key)
    |                   `- note: closure captures 'self' which is accessible to code in the current task
 54 |         }
 55 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:60:14: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 58 |         let dirURL = rootDir.appendingPathComponent(namespace)
 59 |         try FileManager.default.removeItem(at: dirURL)
 60 |         Task {
    |              `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 61 |             await observerManager.publishRemoval(namespace: namespace)
    |                   `- note: closure captures 'self' which is accessible to code in the current task
 62 |         }
 63 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:75:30: warning: sending 'existingValue' risks causing data races; this is an error in the Swift 6 language mode
 73 |             let existingValue = try await read(key: key, namespace: namespace, objectType: objectType)
 74 |             return AsyncThrowingStream { continuation in
 75 |                 continuation.yield(existingValue)
    |                              |- warning: sending 'existingValue' risks causing data races; this is an error in the Swift 6 language mode
    |                              `- note: task-isolated 'existingValue' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 76 |                 let callbackID = UUID().uuidString
 77 |                 observer.registerCallback(id: callbackID) { data in
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:79:38: warning: sending value of non-Sendable type 'T' risks causing data races; this is an error in the Swift 6 language mode
 77 |                 observer.registerCallback(id: callbackID) { data in
 78 |                     if let d = data, let typed = d as? T {
 79 |                         continuation.yield(typed)
    |                                      |- warning: sending value of non-Sendable type 'T' risks causing data races; this is an error in the Swift 6 language mode
    |                                      `- note: Passing task-isolated value of non-Sendable type 'T' as a 'sending' parameter risks causing races inbetween task-isolated uses and uses reachable from the callee
 80 |                     } else if data == nil {
 81 |                         continuation.yield(nil)
[4/10] Emitting module SwiftFileStore
/host/spi-builder-workspace/Sources/SwiftFileStore/FileObjectStore.swift:114:1: warning: extension declares a conformance of imported type 'String' to imported protocol 'Error'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
112 | }
113 |
114 | extension String: Error {}
    | |- warning: extension declares a conformance of imported type 'String' to imported protocol 'Error'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
115 |
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:14:17: warning: non-sendable type 'T?' cannot be returned from actor-isolated implementation to caller of protocol requirement 'read(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
12 |     public init() {}
13 |
14 |     public func read<T>(key: String, namespace: String, objectType _: T.Type) async throws -> T? where T: DataRepresentable {
   |                 |    `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
   |                 `- warning: non-sendable type 'T?' cannot be returned from actor-isolated implementation to caller of protocol requirement 'read(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
15 |         objects[namespace]?[key].flatMap { try? T.from(data: $0) }
16 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:18:17: warning: non-sendable parameter type 'T' cannot be sent from caller of protocol requirement 'write(key:namespace:object:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
16 |     }
17 |
18 |     public func write<T>(key: String, namespace: String, object: T) async throws where T: DataRepresentable {
   |                 `- warning: non-sendable parameter type 'T' cannot be sent from caller of protocol requirement 'write(key:namespace:object:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
19 |         let data = try object.serialize()
20 |         objects[namespace, default: [:]][key] = data
/host/spi-builder-workspace/Sources/SwiftFileStore/ObjectStore.swift:29:16: note: consider making generic parameter 'T' conform to the 'Sendable' protocol
27 |     ///   - namespace: namespace of the object, such as "Cats"
28 |     ///   - object: The object to write
29 |     func write<T>(key: String, namespace: String, object: T) async throws where T: DataRepresentable
   |                `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
30 |
31 |     /// Remove an object from storage
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:38:17: warning: non-sendable type 'AsyncThrowingStream<T?, any Error>' cannot be returned from actor-isolated implementation to caller of protocol requirement 'observe(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
36 |     }
37 |
38 |     public func observe<T>(key: String, namespace: String, objectType: T.Type) async -> AsyncThrowingStream<T?, Error> where T: DataRepresentable {
   |                 |       `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
   |                 `- warning: non-sendable type 'AsyncThrowingStream<T?, any Error>' cannot be returned from actor-isolated implementation to caller of protocol requirement 'observe(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
39 |         let observer = await observerManager.getObserver(key: key, namespace: namespace)
40 |         do {
/host/spi-builder-workspace/Sources/SwiftFileStore/PersistenceLog.swift:54:17: warning: non-sendable parameter type 'Self.Element' cannot be sent from caller of protocol requirement 'append(element:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
52 |     }
53 |
54 |     public func append(element: ElementType) async throws {
   |                 `- warning: non-sendable parameter type 'Self.Element' cannot be sent from caller of protocol requirement 'append(element:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
55 |         try fileHandle.seekToEnd()
56 |         let data = try element.serialize()
/host/spi-builder-workspace/Sources/SwiftFileStore/PersistenceLog.swift:62:17: warning: non-sendable type '[ElementType]' cannot be returned from actor-isolated implementation to caller of protocol requirement 'flush()'; this is an error in the Swift 6 language mode
15 | }
16 |
17 | public actor PersistenceLogImpl<ElementType>: PersistenceLog where ElementType: DataRepresentable {
   |                                 `- note: consider making generic parameter 'ElementType' conform to the 'Sendable' protocol
18 |     public typealias Element = ElementType
19 |
   :
60 |     }
61 |
62 |     public func flush() async throws -> [ElementType] {
   |                 `- warning: non-sendable type '[ElementType]' cannot be returned from actor-isolated implementation to caller of protocol requirement 'flush()'; this is an error in the Swift 6 language mode
63 |         try fileHandle.seek(toOffset: 0)
64 |         let fileData = try fileHandle.readToEnd()
[5/11] Compiling SwiftFileStore JSONDataRepresentable.swift
[6/11] Compiling SwiftFileStore ObserverManager.swift
[7/11] Compiling SwiftFileStore Observer.swift
[8/11] Compiling SwiftFileStore ObjectStore.swift
[9/11] Compiling SwiftFileStore MemoryObjectStore.swift
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:14:17: warning: non-sendable type 'T?' cannot be returned from actor-isolated implementation to caller of protocol requirement 'read(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
12 |     public init() {}
13 |
14 |     public func read<T>(key: String, namespace: String, objectType _: T.Type) async throws -> T? where T: DataRepresentable {
   |                 |    `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
   |                 `- warning: non-sendable type 'T?' cannot be returned from actor-isolated implementation to caller of protocol requirement 'read(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
15 |         objects[namespace]?[key].flatMap { try? T.from(data: $0) }
16 |     }
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:18:17: warning: non-sendable parameter type 'T' cannot be sent from caller of protocol requirement 'write(key:namespace:object:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
16 |     }
17 |
18 |     public func write<T>(key: String, namespace: String, object: T) async throws where T: DataRepresentable {
   |                 `- warning: non-sendable parameter type 'T' cannot be sent from caller of protocol requirement 'write(key:namespace:object:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
19 |         let data = try object.serialize()
20 |         objects[namespace, default: [:]][key] = data
/host/spi-builder-workspace/Sources/SwiftFileStore/ObjectStore.swift:29:16: note: consider making generic parameter 'T' conform to the 'Sendable' protocol
27 |     ///   - namespace: namespace of the object, such as "Cats"
28 |     ///   - object: The object to write
29 |     func write<T>(key: String, namespace: String, object: T) async throws where T: DataRepresentable
   |                `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
30 |
31 |     /// Remove an object from storage
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:38:17: warning: non-sendable type 'AsyncThrowingStream<T?, any Error>' cannot be returned from actor-isolated implementation to caller of protocol requirement 'observe(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
36 |     }
37 |
38 |     public func observe<T>(key: String, namespace: String, objectType: T.Type) async -> AsyncThrowingStream<T?, Error> where T: DataRepresentable {
   |                 |       `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
   |                 `- warning: non-sendable type 'AsyncThrowingStream<T?, any Error>' cannot be returned from actor-isolated implementation to caller of protocol requirement 'observe(key:namespace:objectType:)'; this is an error in the Swift 6 language mode
39 |         let observer = await observerManager.getObserver(key: key, namespace: namespace)
40 |         do {
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:39:46: warning: non-sendable result type 'Observer' cannot be sent from actor-isolated context in call to instance method 'getObserver(key:namespace:)'; this is an error in the Swift 6 language mode
37 |
38 |     public func observe<T>(key: String, namespace: String, objectType: T.Type) async -> AsyncThrowingStream<T?, Error> where T: DataRepresentable {
39 |         let observer = await observerManager.getObserver(key: key, namespace: namespace)
   |                                              `- warning: non-sendable result type 'Observer' cannot be sent from actor-isolated context in call to instance method 'getObserver(key:namespace:)'; this is an error in the Swift 6 language mode
40 |         do {
41 |             let existingValue = try await read(key: key, namespace: namespace, objectType: objectType)
/host/spi-builder-workspace/Sources/SwiftFileStore/Observer.swift:7:13: note: class 'Observer' does not conform to the 'Sendable' protocol
 5 | import Foundation
 6 |
 7 | final class Observer {
   |             `- note: class 'Observer' does not conform to the 'Sendable' protocol
 8 |     let key: String
 9 |     let namespace: String
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:55:21: warning: capture of 'observer' with non-sendable type 'Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
53 |                 }
54 |                 continuation.onTermination = { @Sendable _ in
55 |                     observer.callbacks.removeValue(forKey: callbackID)
   |                     `- warning: capture of 'observer' with non-sendable type 'Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
56 |                 }
57 |             }
/host/spi-builder-workspace/Sources/SwiftFileStore/Observer.swift:7:13: note: class 'Observer' does not conform to the 'Sendable' protocol
 5 | import Foundation
 6 |
 7 | final class Observer {
   |             `- note: class 'Observer' does not conform to the 'Sendable' protocol
 8 |     let key: String
 9 |     let namespace: String
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:21:31: warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
19 |         let data = try object.serialize()
20 |         objects[namespace, default: [:]][key] = data
21 |         await observerManager.publishValue(key: key, namespace: namespace, value: object)
   |                               |- warning: sending 'object' risks causing data races; this is an error in the Swift 6 language mode
   |                               `- note: sending 'self'-isolated 'object' to actor-isolated instance method 'publishValue(key:namespace:value:)' risks causing data races between actor-isolated and 'self'-isolated uses
22 |     }
23 |
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:43:30: warning: sending 'existingValue' risks causing data races; this is an error in the Swift 6 language mode
41 |             let existingValue = try await read(key: key, namespace: namespace, objectType: objectType)
42 |             return AsyncThrowingStream { continuation in
43 |                 continuation.yield(existingValue)
   |                              |- warning: sending 'existingValue' risks causing data races; this is an error in the Swift 6 language mode
   |                              `- note: task-isolated 'existingValue' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
44 |                 let callbackID = UUID().uuidString
45 |                 observer.registerCallback(id: callbackID) { data in
/host/spi-builder-workspace/Sources/SwiftFileStore/MemoryObjectStore.swift:47:38: warning: sending value of non-Sendable type 'T' risks causing data races; this is an error in the Swift 6 language mode
45 |                 observer.registerCallback(id: callbackID) { data in
46 |                     if let d = data, let typed = d as? T {
47 |                         continuation.yield(typed)
   |                                      |- warning: sending value of non-Sendable type 'T' risks causing data races; this is an error in the Swift 6 language mode
   |                                      `- note: Passing task-isolated value of non-Sendable type 'T' as a 'sending' parameter risks causing races inbetween task-isolated uses and uses reachable from the callee
48 |                     } else if data == nil {
49 |                         continuation.yield(nil)
[10/11] Compiling SwiftFileStore ObjectStore+Expiry.swift
[11/11] Compiling SwiftFileStore PersistenceLog.swift
/host/spi-builder-workspace/Sources/SwiftFileStore/PersistenceLog.swift:54:17: warning: non-sendable parameter type 'Self.Element' cannot be sent from caller of protocol requirement 'append(element:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
52 |     }
53 |
54 |     public func append(element: ElementType) async throws {
   |                 `- warning: non-sendable parameter type 'Self.Element' cannot be sent from caller of protocol requirement 'append(element:)' into actor-isolated implementation; this is an error in the Swift 6 language mode
55 |         try fileHandle.seekToEnd()
56 |         let data = try element.serialize()
/host/spi-builder-workspace/Sources/SwiftFileStore/PersistenceLog.swift:62:17: warning: non-sendable type '[ElementType]' cannot be returned from actor-isolated implementation to caller of protocol requirement 'flush()'; this is an error in the Swift 6 language mode
15 | }
16 |
17 | public actor PersistenceLogImpl<ElementType>: PersistenceLog where ElementType: DataRepresentable {
   |                                 `- note: consider making generic parameter 'ElementType' conform to the 'Sendable' protocol
18 |     public typealias Element = ElementType
19 |
   :
60 |     }
61 |
62 |     public func flush() async throws -> [ElementType] {
   |                 `- warning: non-sendable type '[ElementType]' cannot be returned from actor-isolated implementation to caller of protocol requirement 'flush()'; this is an error in the Swift 6 language mode
63 |         try fileHandle.seek(toOffset: 0)
64 |         let fileData = try fileHandle.readToEnd()
Build complete! (8.65s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftFileStore",
  "name" : "SwiftFileStore",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftFileStore",
      "targets" : [
        "SwiftFileStore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftFileStoreTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftFileStoreTests",
      "path" : "Tests/SwiftFileStoreTests",
      "sources" : [
        "FileObjectStoreTests.swift",
        "MemoryObjectStoreTests.swift",
        "PersistenceLogTests.swift",
        "TestObject.swift",
        "XCTestCase+.swift"
      ],
      "target_dependencies" : [
        "SwiftFileStore"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftFileStore",
      "module_type" : "SwiftTarget",
      "name" : "SwiftFileStore",
      "path" : "Sources/SwiftFileStore",
      "product_memberships" : [
        "SwiftFileStore"
      ],
      "sources" : [
        "FileObjectStore.swift",
        "JSONDataRepresentable.swift",
        "MemoryObjectStore.swift",
        "ObjectStore+Expiry.swift",
        "ObjectStore.swift",
        "Observer.swift",
        "ObserverManager.swift",
        "PersistenceLog.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:7e37457820e5f17452a98118754f345f2619722c485f2db0d8b666940a83afd2
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Done.