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Build Information

Failed to build AppSyncRealTimeClient, reference main (57b27d), with Swift 6.2 for Linux on 10 Apr 2026 01:37:12 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/aws-amplify/aws-appsync-realtime-client-ios.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/aws-amplify/aws-appsync-realtime-client-ios
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 57b27d9 chore(deps): bump addressable from 2.8.9 to 2.9.0 (#175)
Cloned https://github.com/aws-amplify/aws-appsync-realtime-client-ios.git
Revision (git rev-parse @):
57b27d931660d7622be5782ce8abae0fbad5becf
SUCCESS checkout https://github.com/aws-amplify/aws-appsync-realtime-client-ios.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.2
Building package at path:  $PWD
https://github.com/aws-amplify/aws-appsync-realtime-client-ios.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:0ddb100795e64f71518020a73ad8441aeb43832ede7f1202ae7f8de93664f90d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.2-latest
Fetching https://github.com/daltoniam/Starscream
[1/5108] Fetching starscream
Fetched https://github.com/daltoniam/Starscream from cache (0.49s)
Computing version for https://github.com/daltoniam/Starscream
Computed https://github.com/daltoniam/Starscream at 4.0.8 (0.94s)
Creating working copy for https://github.com/daltoniam/Starscream
Working copy of https://github.com/daltoniam/Starscream resolved at 4.0.8
warning: 'starscream': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Info.plist
Building for debugging...
[0/4] Write sources
[0/4] Copying PrivacyInfo.xcprivacy
[0/4] Write sources
[3/4] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/24] Emitting module Starscream
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[6/26] Compiling Starscream Transport.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[7/26] Compiling Starscream resource_bundle_accessor.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[8/26] Compiling Starscream Framer.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[9/26] Compiling Starscream HTTPHandler.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[10/26] Compiling Starscream StringHTTPHandler.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[11/26] Compiling Starscream FoundationTransport.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[12/26] Compiling Starscream TCPTransport.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[13/26] Compiling Starscream WebSocketServer.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[14/26] Compiling Starscream WebSocket.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[15/26] Compiling Starscream FoundationSecurity.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[16/26] Compiling Starscream Security.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[17/26] Compiling Starscream Server.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[18/26] Compiling Starscream Engine.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[19/26] Compiling Starscream NativeEngine.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[20/26] Compiling Starscream WSEngine.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[21/26] Compiling Starscream FoundationHTTPHandler.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[22/26] Compiling Starscream FoundationHTTPServerHandler.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[23/26] Compiling Starscream FrameCollector.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[24/26] Compiling Starscream Compression.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[25/26] Compiling Starscream WSCompression.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
[26/26] Compiling Starscream Data+Extensions.swift
/host/spi-builder-workspace/.build/checkouts/Starscream/Sources/Compression/WSCompression.swift:30:8: error: no such module 'zlib'
 28 |
 29 | import Foundation
 30 | import zlib
    |        `- error: no such module 'zlib'
 31 |
 32 | public class WSCompression: CompressionHandler {
BUILD FAILURE 6.2 linux