Stubby – Build Information – Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build Stubby, reference main (888b26), with Swift 6.2 for Wasm on 12 Nov 2025 08:31:25 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
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:             6.2
Building package at path:  $PWD
https://github.com/bdbergeron/Stubby.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1
wasm-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:f6b6b9bdb5d5605d727da337418fc455cd8a0394d3a815b70631008c48829755
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest
warning: multiple Swift SDKs match target triple `wasm32-unknown-wasip1` and host triple x86_64-unknown-linux-gnu, selected one at /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift-sdk.json
Fetching https://github.com/swiftlang/swift-docc-plugin
Fetching https://github.com/pointfreeco/swift-macro-testing
Fetching https://github.com/swiftlang/swift-syntax
[1/2160] Fetching swift-docc-plugin
[217/3077] Fetching swift-docc-plugin, swift-macro-testing
Fetched https://github.com/pointfreeco/swift-macro-testing from cache (0.46s)
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (0.47s)
[1/72738] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (6.63s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.4.5 (10.61s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3577] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.85s)
Computing version for https://github.com/pointfreeco/swift-macro-testing
Computed https://github.com/pointfreeco/swift-macro-testing at 0.6.4 (1.24s)
Fetching https://github.com/pointfreeco/swift-snapshot-testing
[1/15599] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing from cache (3.26s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (3.70s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.18.7 (0.35s)
Fetching https://github.com/pointfreeco/swift-custom-dump
[1/4601] Fetching swift-custom-dump
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (0.31s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.3.3 (0.67s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/5555] Fetching xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.83s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 602.0.0 (3.03s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.7.0 (0.36s)
Creating working copy for https://github.com/pointfreeco/swift-macro-testing
Working copy of https://github.com/pointfreeco/swift-macro-testing resolved at 0.6.4
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.18.7
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.3.3
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.7.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.5
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-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 602.0.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/602.0.0/swift-6.2-RELEASE-MacroSupport-ubuntu_jammy_x86_64.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/602.0.0/swift-6.2-RELEASE-MacroSupport-ubuntu_jammy_x86_64.tar.gz (0.54s)
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/11] Write sources
[7/11] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[9/22] 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 {
[10/22] 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 {
[11/22] 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 {
[12/22] 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 {
/host/spi-builder-workspace/Sources/StubbyMacrosPlugin/StubMacro.swift:75:31: warning: 'init(leadingTrivia:_:asyncSpecifier:_:throwsSpecifier:_:trailingTrivia:)' is deprecated: use throwsClause instead of throwsSpecifier [#DeprecatedDeclaration]
 73 |               )
 74 |             },
 75 |             effectSpecifiers: FunctionEffectSpecifiersSyntax(throwsSpecifier: .keyword(.throws)),
    |                               `- warning: 'init(leadingTrivia:_:asyncSpecifier:_:throwsSpecifier:_:trailingTrivia:)' is deprecated: use throwsClause instead of throwsSpecifier [#DeprecatedDeclaration]
 76 |             returnClause: ReturnClauseSyntax(
 77 |               type: IdentifierTypeSyntax(
/host/spi-builder-workspace/Sources/StubbyMacrosPlugin/StubMacro.swift:81:21: warning: 'init(leadingTrivia:_:argument:_:trailingComma:_:trailingTrivia:)' is deprecated: use GenericArgumentSyntax.Argument for 'argument' [#DeprecatedDeclaration]
 79 |                 genericArgumentClause: GenericArgumentClauseSyntax(
 80 |                   arguments: GenericArgumentListSyntax {
 81 |                     GenericArgumentSyntax(argument: IdentifierTypeSyntax(name: .identifier("StubbyResponse")))
    |                     `- warning: 'init(leadingTrivia:_:argument:_:trailingComma:_:trailingTrivia:)' is deprecated: use GenericArgumentSyntax.Argument for 'argument' [#DeprecatedDeclaration]
 82 |                     GenericArgumentSyntax(argument: IdentifierTypeSyntax(name: .identifier("Error")))
 83 |                   }
BUILD FAILURE 6.2 wasm