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Build Information

Failed to build Stubby, reference main (888b26), with Swift 6.3 for Wasm on 17 Apr 2026 13:20:56 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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/bdbergeron/Stubby.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/bdbergeron/Stubby
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 888b26e Update to Swift 6, iOS 16, macOS 13 and improve concurrency safety (#15)
Cloned https://github.com/bdbergeron/Stubby.git
Revision (git rev-parse @):
888b26e2b4dac4731b6c23102480daf3a7ba2241
SUCCESS checkout https://github.com/bdbergeron/Stubby.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/bdbergeron/Stubby.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Fetching https://github.com/swiftlang/swift-docc-plugin
Fetching https://github.com/swiftlang/swift-syntax
Fetching https://github.com/pointfreeco/swift-macro-testing
[1/2277] Fetching swift-docc-plugin
[161/3238] Fetching swift-docc-plugin, swift-macro-testing
[3239/78221] Fetching swift-docc-plugin, swift-macro-testing, swift-syntax
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (0.42s)
[1711/75944] Fetching swift-macro-testing, swift-syntax
Fetched https://github.com/pointfreeco/swift-macro-testing from cache (6.13s)
Fetched https://github.com/swiftlang/swift-syntax from cache (6.19s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.4.6 (8.60s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3672] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.41s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.05s)
Computing version for https://github.com/pointfreeco/swift-macro-testing
Computed https://github.com/pointfreeco/swift-macro-testing at 0.6.5 (0.50s)
Fetching https://github.com/pointfreeco/swift-snapshot-testing
[1/16065] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing from cache (3.48s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 602.0.0 (4.10s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.19.2 (0.39s)
Fetching https://github.com/pointfreeco/swift-custom-dump
[1/5464] Fetching swift-custom-dump
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (0.37s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.5.0 (0.71s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/5723] Fetching xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.71s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (1.07s)
Creating working copy for https://github.com/pointfreeco/swift-macro-testing
Working copy of https://github.com/pointfreeco/swift-macro-testing resolved at 0.6.5
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.19.2
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 602.0.0
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.6
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/602.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/602.0.0/swift-6.3-RELEASE-ubuntu_jammy_x86_64-MacroSupport.tar.gz (0.37s)
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/44] Write sources
[23/44] Compiling _SwiftSyntaxCShims PlatformMutex.c
[24/44] Write swift-version-24593BA9C3E375BF.txt
[26/62] Compiling SwiftSyntax600 Empty.swift
[27/62] Emitting module SwiftSyntax600
[28/62] Emitting module SwiftSyntax509
[29/62] Compiling SwiftSyntax509 Empty.swift
[31/64] Emitting module SwiftSyntax602
[32/64] Compiling SwiftSyntax602 Empty.swift
[35/65] Emitting module SwiftSyntax510
[36/65] Compiling SwiftSyntax510 Empty.swift
[36/66] Wrapping AST for SwiftSyntax509 for debugging
[39/66] Emitting module SwiftSyntax601
[40/66] Compiling SwiftSyntax601 Empty.swift
[40/67] Wrapping AST for SwiftSyntax602 for debugging
[41/67] Wrapping AST for SwiftSyntax600 for debugging
[43/67] Wrapping AST for SwiftSyntax510 for debugging
[44/67] Wrapping AST for SwiftSyntax601 for debugging
[46/130] Compiling SwiftSyntax AbsolutePosition.swift
[47/130] Compiling SwiftSyntax AbsoluteSyntaxInfo.swift
[48/130] Compiling SwiftSyntax ArenaAllocatedBuffer.swift
[49/130] Compiling SwiftSyntax Assert.swift
[50/130] Compiling SwiftSyntax BumpPtrAllocator.swift
[51/130] Compiling SwiftSyntax CommonAncestor.swift
[52/130] Compiling SwiftSyntax Convenience.swift
[53/130] Compiling SwiftSyntax CustomTraits.swift
[54/130] Compiling SwiftSyntax EditorPlaceholder.swift
[55/138] Compiling Stubby URLSession+Stubbed.swift
/host/spi-builder-workspace/Sources/Stubby/URLSession+Stubbed.swift:4:8: error: no such module 'os'
  2 |
  3 | import Foundation
  4 | import os
    |        `- error: no such module 'os'
  5 |
  6 | extension URLSession {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[56/138] Emitting module Stubby
/host/spi-builder-workspace/Sources/Stubby/URLSession+Stubbed.swift:4:8: error: no such module 'os'
  2 |
  3 | import Foundation
  4 | import os
    |        `- error: no such module 'os'
  5 |
  6 | extension URLSession {
[57/138] Compiling Stubby StubbyResponse.swift
/host/spi-builder-workspace/Sources/Stubby/URLSession+Stubbed.swift:4:8: error: no such module 'os'
  2 |
  3 | import Foundation
  4 | import os
    |        `- error: no such module 'os'
  5 |
  6 | extension URLSession {
[58/138] Compiling Stubby StubbyURLProtocol.swift
/host/spi-builder-workspace/Sources/Stubby/URLSession+Stubbed.swift:4:8: error: no such module 'os'
  2 |
  3 | import Foundation
  4 | import os
    |        `- error: no such module 'os'
  5 |
  6 | extension URLSession {
BUILD FAILURE 6.3 wasm