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Build Information

Successful build of swift-nats, reference main (205589), with Swift 6.4 for Linux on 25 Sep 2026 09:49:12 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hjuraev/nats-swift.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/hjuraev/nats-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2055899 Merge branch 'fix/connect-confirmation' into 'main'
Cloned https://github.com/hjuraev/nats-swift.git
Revision (git rev-parse @):
2055899d7b687ed7252aacb432500cb30e5bef6c
SUCCESS checkout https://github.com/hjuraev/nats-swift.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/hjuraev/nats-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
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Building for debugging...
[Computing dependencies]
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[Starting]
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[1209 / 1228] Nats
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[1211 / 1229] Nats
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:121:54: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
119 |         logger: Logger = Logger(label: "nats.client"),
120 |         inboxPrefix: String = "_INBOX",
121 |         writeBufferWaterMark: WriteBufferWaterMark = WriteBufferWaterMark(low: 32 * 1024, high: 64 * 1024),
    |                                                      |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                                                      `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
122 |         writeBackpressureTimeout: Duration = .seconds(5),
123 |         writeTimeout: Duration = .seconds(30),
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:67:38: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
 65 |     /// bounds are what stop a peer that stops reading from turning into
 66 |     /// unbounded memory growth on this side.
 67 |     public var writeBufferWaterMark: WriteBufferWaterMark
    |                                      |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                                      `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
 68 |
 69 |     /// How long a write waits for a saturated connection to drain before being
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:121:31: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
119 |         logger: Logger = Logger(label: "nats.client"),
120 |         inboxPrefix: String = "_INBOX",
121 |         writeBufferWaterMark: WriteBufferWaterMark = WriteBufferWaterMark(low: 32 * 1024, high: 64 * 1024),
    |                               |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                               `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
122 |         writeBackpressureTimeout: Duration = .seconds(5),
123 |         writeTimeout: Duration = .seconds(30),
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
[1220 / 1230]
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[1223 / 1232] NatsBenchmarks-product
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[1226 / 1232] NatsBenchmarks-product
[1229 / 1233] Nats
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:121:54: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
119 |         logger: Logger = Logger(label: "nats.client"),
120 |         inboxPrefix: String = "_INBOX",
121 |         writeBufferWaterMark: WriteBufferWaterMark = WriteBufferWaterMark(low: 32 * 1024, high: 64 * 1024),
    |                                                      |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                                                      `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
122 |         writeBackpressureTimeout: Duration = .seconds(5),
123 |         writeTimeout: Duration = .seconds(30),
/host/spi-builder-workspace/Sources/Nats/Client/NatsClient.swift:826:21: warning: conformance of 'MessageToByteHandler<Encoder>' to 'Sendable' is unavailable
 824 |             .channelInitializer { channel in
 825 |                 channel.pipeline.addHandlers([
 826 |                     MessageToByteHandler(ProtocolEncoder(logger: protocolLogger)),
     |                     `- warning: conformance of 'MessageToByteHandler<Encoder>' to 'Sendable' is unavailable
 827 |                     ByteToMessageHandler(ProtocolDecoder(logger: protocolLogger)),
 828 |                     handler
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOCore/Codec.swift:810:1: note: conformance of 'MessageToByteHandler<Encoder>' to 'Sendable' has been explicitly marked unavailable here
808 |
809 | @available(*, unavailable)
810 | extension MessageToByteHandler: Sendable {}
    | `- note: conformance of 'MessageToByteHandler<Encoder>' to 'Sendable' has been explicitly marked unavailable here
811 |
812 | extension MessageToByteHandler {
/host/spi-builder-workspace/Sources/Nats/Client/NatsClient.swift:827:21: warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable
 825 |                 channel.pipeline.addHandlers([
 826 |                     MessageToByteHandler(ProtocolEncoder(logger: protocolLogger)),
 827 |                     ByteToMessageHandler(ProtocolDecoder(logger: protocolLogger)),
     |                     `- warning: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' is unavailable
 828 |                     handler
 829 |                 ])
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOCore/Codec.swift:507:1: note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
505 |
506 | @available(*, unavailable)
507 | extension ByteToMessageHandler: Sendable {}
    | `- note: conformance of 'ByteToMessageHandler<Decoder>' to 'Sendable' has been explicitly marked unavailable here
508 |
509 | // MARK: ByteToMessageHandler: Test Helpers
/host/spi-builder-workspace/Sources/Nats/Client/NatsClient.swift:1095:47: warning: type 'TLSHandshakeObserver' does not conform to the 'Sendable' protocol
1093 |             Task { await self?.markTLSHandshakeCompleted(generation: generation) }
1094 |         }
1095 |         try await channel.pipeline.addHandler(observer, position: .first).get()
     |                                               `- warning: type 'TLSHandshakeObserver' does not conform to the 'Sendable' protocol
1096 |
1097 |         // Add TLS handler at the front of the pipeline (before protocol encoder/decoder)
/host/spi-builder-workspace/Sources/Nats/TLS/TLSHandshakeObserver.swift:15:13: note: class 'TLSHandshakeObserver' does not conform to the 'Sendable' protocol
13 | /// ClientHello from a peer that never sent INFO — both simply run out the
14 | /// connect deadline and report a bare timeout.
15 | final class TLSHandshakeObserver: ChannelInboundHandler {
   |             `- note: class 'TLSHandshakeObserver' does not conform to the 'Sendable' protocol
16 |     typealias InboundIn = Any
17 |     typealias InboundOut = Any
/host/spi-builder-workspace/Sources/Nats/Client/NatsClient.swift:1098:47: warning: conformance of 'NIOSSLHandler' to 'Sendable' is unavailable
1096 |
1097 |         // Add TLS handler at the front of the pipeline (before protocol encoder/decoder)
1098 |         try await channel.pipeline.addHandler(sslHandler, position: .first).get()
     |                                               `- warning: conformance of 'NIOSSLHandler' to 'Sendable' is unavailable
1099 |
1100 |         logger.debug("TLS handler added to pipeline")
/host/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/NIOSSL/NIOSSLHandler.swift:839:1: note: conformance of 'NIOSSLHandler' to 'Sendable' has been explicitly marked unavailable here
 837 |
 838 | @available(*, unavailable)
 839 | extension NIOSSLHandler: Sendable {}
     | `- note: conformance of 'NIOSSLHandler' to 'Sendable' has been explicitly marked unavailable here
 840 |
 841 | extension NIOSSLHandler {
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:67:38: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
 65 |     /// bounds are what stop a peer that stops reading from turning into
 66 |     /// unbounded memory growth on this side.
 67 |     public var writeBufferWaterMark: WriteBufferWaterMark
    |                                      |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                                      `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
 68 |
 69 |     /// How long a write waits for a saturated connection to drain before being
/host/spi-builder-workspace/Sources/Nats/Client/NatsClientOptions.swift:121:31: warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
119 |         logger: Logger = Logger(label: "nats.client"),
120 |         inboxPrefix: String = "_INBOX",
121 |         writeBufferWaterMark: WriteBufferWaterMark = WriteBufferWaterMark(low: 32 * 1024, high: 64 * 1024),
    |                               |- warning: 'WriteBufferWaterMark' is deprecated: renamed to 'ChannelOptions.Types.WriteBufferWaterMark' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
    |                               `- note: use 'ChannelOptions.Types.WriteBufferWaterMark' instead
122 |         writeBackpressureTimeout: Duration = .seconds(5),
123 |         writeTimeout: Duration = .seconds(30),
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
/host/spi-builder-workspace/Sources/Nats/JetStream/KeyValue/KeyValueBucket.swift:102:27: warning: 'as' test is always true
100 |
101 |             return entry
102 |         } catch let error as JetStreamError {
    |                           `- warning: 'as' test is always true
103 |             if case .apiError(let code, _, _) = error, code == 404 {
104 |                 return nil
/host/spi-builder-workspace/Sources/Nats/JetStream/KeyValue/KeyValueBucket.swift:450:27: warning: 'as' test is always true
448 |
449 |             return KeyValueEntry.fromDirectGet(response, bucket: bucket)
450 |         } catch let error as JetStreamError {
    |                           `- warning: 'as' test is always true
451 |             if case .apiError(let code, _, _) = error, code == 404 {
452 |                 return nil
[1234 / 1234] Nats-product
[1234 / 1234] NatsBenchmarks-product
Build complete! (59.36 secs)
Build complete.
{
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    {
      "identity" : "swift-nio",
      "requirement" : {
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  "manifest_display_name" : "swift-nats",
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  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
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      "name" : "tvos",
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    {
      "name" : "NatsBenchmarks",
      "targets" : [
        "NatsBenchmarks"
      ],
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        "executable" : null
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  "swift_languages_versions" : [
    "6"
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  "targets" : [
    {
      "c99name" : "NatsTests",
      "module_type" : "SwiftTarget",
      "name" : "NatsTests",
      "path" : "Tests/NatsTests",
      "sources" : [
        "ErrorTests.swift",
        "Fixtures/TestCredentials.swift",
        "HeadersTests.swift",
        "Integration/AuthenticationIntegrationTests.swift",
        "Integration/ConcurrentConnectTests.swift",
        "Integration/ConnectConfirmationTests.swift",
        "Integration/FetchDeadlineTests.swift",
        "Integration/JetStreamCostTests.swift",
        "Integration/ReconnectionIntegrationTests.swift",
        "Integration/StreamTerminationTests.swift",
        "IntegrationTests.swift",
        "KeyValueTests.swift",
        "MessageTests.swift",
        "SubjectTests.swift",
        "Support/BoundedWait.swift",
        "Support/BurstHarness.swift",
        "Support/NatsServerProcess.swift",
        "Support/StalledPeer.swift",
        "Support/StalledPeerSelfTests.swift",
        "Unit/AuthHandlerTests.swift",
        "Unit/BoundedWriteTests.swift",
        "Unit/ClientLifecycleCorrectnessTests.swift",
        "Unit/ClientLifecycleTests.swift",
        "Unit/ClientStateMachineTests.swift",
        "Unit/ConnectCancellationTests.swift",
        "Unit/ConnectTimeoutTests.swift",
        "Unit/JWTAuthTests.swift",
        "Unit/NKeyAuthTests.swift",
        "Unit/ProtocolDecoderTests.swift",
        "Unit/ProtocolEncoderTests.swift",
        "Unit/ReconnectionPolicyTests.swift",
        "Unit/SharedEventLoopGroupTests.swift",
        "Unit/TLSHandshakeDeadlineTests.swift",
        "Unit/URLParsingTests.swift",
        "Unit/WireParsingTests.swift",
        "Unit/WriteBackpressureTests.swift"
      ],
      "target_dependencies" : [
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      "type" : "test"
    },
    {
      "c99name" : "NatsBenchmarks",
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      "product_memberships" : [
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      "sources" : [
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      "sources" : [
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        "Client/ClientStateMachine.swift",
        "Client/NatsClient.swift",
        "Client/NatsClientOptions.swift",
        "Connection/ConnectionHandler.swift",
        "Connection/OutboundQueue.swift",
        "Connection/Reconnection.swift",
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        "Errors/NatsError.swift",
        "Errors/ProtocolError.swift",
        "Extensions/ByteBuffer+Extensions.swift",
        "Extensions/RFC3339.swift",
        "JetStream/Consumer/Consumer.swift",
        "JetStream/Consumer/ConsumerConfig.swift",
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        "JetStream/KeyValue/KeyValueBucket.swift",
        "JetStream/KeyValue/KeyValueConfig.swift",
        "JetStream/KeyValue/KeyValueContext.swift",
        "JetStream/KeyValue/KeyValueEntry.swift",
        "JetStream/KeyValue/KeyValueScan.swift",
        "JetStream/KeyValue/KeyValueStatus.swift",
        "JetStream/KeyValue/KeyValueWatcher.swift",
        "JetStream/Message/JetStreamMessage.swift",
        "JetStream/Message/PubAck.swift",
        "JetStream/Stream/Stream.swift",
        "JetStream/Stream/StreamConfig.swift",
        "JetStream/Stream/StreamInfo.swift",
        "Messages/NatsHeaders.swift",
        "Messages/NatsMessage.swift",
        "Messages/Subject.swift",
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        "Protocol/ConnectInfo.swift",
        "Protocol/ProtocolDecoder.swift",
        "Protocol/ProtocolEncoder.swift",
        "Protocol/ServerInfo.swift",
        "Protocol/ServerOp.swift",
        "Subscription/Subscription.swift",
        "TLS/TLSConfiguration.swift",
        "TLS/TLSHandshakeObserver.swift"
      ],
      "type" : "library"
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}
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Done.