The Swift Package Index logo.Swift Package Index

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

Build Information

Failed to build FindFont, reference main (b39389), with Swift 6.1 for Wasm on 14 Jul 2025 15:02:13 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tomasf/FindFont.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/tomasf/FindFont
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at b393897 Update README.md
Cloned https://github.com/tomasf/FindFont.git
Revision (git rev-parse @):
b393897d30f7baba2b3daa58ee3f87fac84b3182
SUCCESS checkout https://github.com/tomasf/FindFont.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/tomasf/FindFont.git
https://github.com/tomasf/FindFont.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "FindFont",
  "name" : "FindFont",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "FindFont",
      "targets" : [
        "FindFont"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Fontconfig",
      "module_type" : "SystemLibraryTarget",
      "name" : "Fontconfig",
      "path" : "Sources/Fontconfig",
      "product_memberships" : [
        "FindFont"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    },
    {
      "c99name" : "FindFontTests",
      "module_type" : "SwiftTarget",
      "name" : "FindFontTests",
      "path" : "Tests/FindFontTests",
      "sources" : [
        "Tests.swift"
      ],
      "target_dependencies" : [
        "FindFont"
      ],
      "type" : "test"
    },
    {
      "c99name" : "FindFont",
      "module_type" : "SwiftTarget",
      "name" : "FindFont",
      "path" : "Sources/FindFont",
      "product_memberships" : [
        "FindFont"
      ],
      "sources" : [
        "FindFont+Apple.swift",
        "FindFont+Linux.swift",
        "FindFont+Windows.swift",
        "FindFont.swift"
      ],
      "target_dependencies" : [
        "Fontconfig"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:8f9255989265d824b88e7d572b1a334a0dc9b701075ede1970390db95d315c35
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/7] Compiling FindFont FindFont+Windows.swift
[4/7] Compiling FindFont FindFont+Linux.swift
[5/7] Compiling FindFont FindFont.swift
/host/spi-builder-workspace/Sources/FindFont/FindFont.swift:30:5: error: missing return in static method expected to return 'FontRepository.Match?'
28 |         try matchForLinuxFont(family: name, style: style)
29 | #endif
30 |     }
   |     `- error: missing return in static method expected to return 'FontRepository.Match?'
31 |
32 |     /// Errors that can occur during font lookup.
[6/7] Emitting module FindFont
[7/7] Compiling FindFont FindFont+Apple.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:8f9255989265d824b88e7d572b1a334a0dc9b701075ede1970390db95d315c35
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/6] Compiling FindFont FindFont.swift
/host/spi-builder-workspace/Sources/FindFont/FindFont.swift:30:5: error: missing return in static method expected to return 'FontRepository.Match?'
28 |         try matchForLinuxFont(family: name, style: style)
29 | #endif
30 |     }
   |     `- error: missing return in static method expected to return 'FontRepository.Match?'
31 |
32 |     /// Errors that can occur during font lookup.
[3/6] Compiling FindFont FindFont+Linux.swift
[4/6] Emitting module FindFont
[5/6] Compiling FindFont FindFont+Apple.swift
[6/6] Compiling FindFont FindFont+Windows.swift
BUILD FAILURE 6.1 wasm