Swift Package Index

Build Information

Failed to build Realtime, reference 0.0.2 (0b985c), with Swift 6.4 for Linux on 18 Sep 2026 17:30:58 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-1":/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/supabase-community/realtime-swift.git
Reference: 0.0.2
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/supabase-community/realtime-swift
 * tag               0.0.2      -> FETCH_HEAD
HEAD is now at 0b985c6 Remove Starscream Dependency and bump minimum support platform (#11)
Cloned https://github.com/supabase-community/realtime-swift.git
Revision (git rev-parse @):
0b985c687fe963f6bd818ff77a35c27247b98bb4
SUCCESS checkout https://github.com/supabase-community/realtime-swift.git at 0.0.2
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/supabase-community/realtime-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-1":/host -w "$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
Building for debugging...
[Planning deferred tasks]
error: SwiftCompile normal x86_64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/Realtime/RealtimeClient.swift:715:4: error: Objective-C interoperability is disabled
713 |
714 |   /// Sends a hearbeat payload to the phoenix serverss
715 |   @objc func sendHeartbeat() {
    |    `- error: Objective-C interoperability is disabled
716 |     // Do not send if the connection is closed
717 |     guard isConnected else { return }
/host/spi-builder-workspace/Sources/Realtime/Transport.swift:130:14: warning: non-final class 'URLSessionTransport' cannot conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
128 | /// your own WebSocket library or implementation.
129 | @available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
130 | public class URLSessionTransport: NSObject, Transport, URLSessionWebSocketDelegate {
    |              `- warning: non-final class 'URLSessionTransport' cannot conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
131 |   /// The URL to connect to
132 |   internal let url: URL
/host/spi-builder-workspace/Sources/Realtime/Transport.swift:135:15: warning: stored property 'session' of 'Sendable'-conforming class 'URLSessionTransport' is mutable; this is an error in the Swift 6 language mode
133 |
134 |   /// The underling URLsession. Assigned during `connect()`
135 |   private var session: URLSession?
    |               `- warning: stored property 'session' of 'Sendable'-conforming class 'URLSessionTransport' is mutable; this is an error in the Swift 6 language mode
136 |
137 |   /// The ongoing task. Assigned during `connect()`
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Realtime/Channel.swift /host/spi-builder-workspace/Sources/Realtime/Defaults.swift /host/spi-builder-workspace/Sources/Realtime/Delegated.swift /host/spi-builder-workspace/Sources/Realtime/HeartbeatTimer.swift /host/spi-builder-workspace/Sources/Realtime/Message.swift /host/spi-builder-workspace/Sources/Realtime/Push.swift /host/spi-builder-workspace/Sources/Realtime/RealtimeClient.swift /host/spi-builder-workspace/Sources/Realtime/SocketError.swift /host/spi-builder-workspace/Sources/Realtime/StateChangeCallbacks.swift /host/spi-builder-workspace/Sources/Realtime/TimeoutTimer.swift /host/spi-builder-workspace/Sources/Realtime/Transport.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Realtime -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Realtime_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Modules/Realtime.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Modules/Realtime.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Realtime-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Realtime-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Realtime-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Realtime.build/Debug-linux-x86_64/Realtime-t.build/Objects-normal/x86_64/Modules/Realtime.swiftmodule
[28 / 36] Realtime
error: Build failed
BUILD FAILURE 6.4 linux