Swift Package IndexBuild Information
Failed to build frontmatter, reference main (108b6e), with Swift 6.1 for Wasm on 19 Nov 2025 14:01:30 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swifttoolkit/Frontmatter.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/swifttoolkit/Frontmatter
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 108b6e3 Add license
Cloned https://github.com/swifttoolkit/Frontmatter.git
Revision (git rev-parse @):
108b6e3b7571e532add6634e03080b04e4a47189
SUCCESS checkout https://github.com/swifttoolkit/Frontmatter.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/swifttoolkit/Frontmatter.git
https://github.com/swifttoolkit/Frontmatter.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
{
"identity" : "yams",
"requirement" : {
"range" : [
{
"lower_bound" : "5.3.1",
"upper_bound" : "6.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/jpsim/Yams.git"
}
],
"manifest_display_name" : "frontmatter",
"name" : "frontmatter",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "13.0"
}
],
"products" : [
{
"name" : "Frontmatter",
"targets" : [
"Frontmatter"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "frontmatterTests",
"module_type" : "SwiftTarget",
"name" : "frontmatterTests",
"path" : "Tests/frontmatterTests",
"sources" : [
"Contents.swift",
"Error+Equatable.swift",
"ReadTests.swift",
"StringUtilsTests.swift",
"WriteTests.swift"
],
"target_dependencies" : [
"Frontmatter"
],
"type" : "test"
},
{
"c99name" : "Frontmatter",
"module_type" : "SwiftTarget",
"name" : "Frontmatter",
"path" : "Sources",
"product_dependencies" : [
"Yams"
],
"product_memberships" : [
"Frontmatter"
],
"sources" : [
"frontmatter/Error.swift",
"frontmatter/Frontmatter+Read.swift",
"frontmatter/Frontmatter+Write.swift",
"frontmatter/String+Utils.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.1-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: sha256:4dfe22dedd7a52399668938cbd466a34545eff77bced906005dc4032a6549d90
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.1-latest
Fetching https://github.com/jpsim/Yams.git
[1/11263] Fetching yams
Fetched https://github.com/jpsim/Yams.git from cache (1.81s)
Computing version for https://github.com/jpsim/Yams.git
Computed https://github.com/jpsim/Yams.git at 5.4.0 (4.56s)
Creating working copy for https://github.com/jpsim/Yams.git
Working copy of https://github.com/jpsim/Yams.git resolved at 5.4.0
Building for debugging...
[0/9] Write sources
[2/9] Compiling writer.c
[3/9] Compiling api.c
[4/9] Compiling reader.c
[5/9] Compiling parser.c
[6/9] Write swift-version-24593BA9C3E375BF.txt
[7/9] Compiling emitter.c
[8/9] Compiling scanner.c
[10/29] Compiling Yams Tag.swift
[11/29] Compiling Yams YamlAnchorProviding.swift
[12/31] Compiling Yams YamlError.swift
[13/31] Compiling Yams YamlTagProviding.swift
[14/31] Compiling Yams Node.Scalar.swift
[15/31] Compiling Yams Node.Sequence.swift
[16/31] Compiling Yams Node.swift
[17/31] Compiling Yams Resolver.swift
[18/31] Compiling Yams String+Yams.swift
[19/31] Compiling Yams Parser.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[20/31] Compiling Yams RedundancyAliasingStrategy.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[21/31] Compiling Yams Representer.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[22/31] Emitting module Yams
[23/31] Compiling Yams Mark.swift
[24/31] Compiling Yams Node.Alias.swift
[25/31] Compiling Yams Node.Mapping.swift
[26/31] Compiling Yams Decoder.swift
[27/31] Compiling Yams Emitter.swift
[28/31] Compiling Yams Encoder.swift
[29/31] Compiling Yams AliasDereferencingStrategy.swift
[30/31] Compiling Yams Anchor.swift
[31/31] Compiling Yams Constructor.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:4dfe22dedd7a52399668938cbd466a34545eff77bced906005dc4032a6549d90
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
[2/21] Emitting module Yams
[3/23] Compiling Yams Tag.swift
[4/23] Compiling Yams YamlAnchorProviding.swift
[5/23] Compiling Yams Resolver.swift
[6/23] Compiling Yams String+Yams.swift
[7/23] Compiling Yams Node.Scalar.swift
[8/23] Compiling Yams Node.Sequence.swift
[9/23] Compiling Yams Node.swift
[10/23] Compiling Yams Parser.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[11/23] Compiling Yams RedundancyAliasingStrategy.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[12/23] Compiling Yams Representer.swift
/host/spi-builder-workspace/.build/checkouts/Yams/Sources/Yams/Representer.swift:307:45: error: cannot find 'DBL_DECIMAL_DIG' in scope
305 | // Since `NumberFormatter` creates a string with insufficient precision for Decode,
306 | // it uses with `String(format:...)`
307 | let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
| `- error: cannot find 'DBL_DECIMAL_DIG' in scope
308 | // "%*.g" does not use scientific notation if the exponent is less than –4.
309 | // So fallback to using `NumberFormatter` if string does not uses scientific notation.
[13/23] Compiling Yams AliasDereferencingStrategy.swift
[14/23] Compiling Yams Anchor.swift
[15/23] Compiling Yams Constructor.swift
[16/23] Compiling Yams Mark.swift
[17/23] Compiling Yams Node.Alias.swift
[18/23] Compiling Yams Node.Mapping.swift
[19/23] Compiling Yams YamlError.swift
[20/23] Compiling Yams YamlTagProviding.swift
[21/23] Compiling Yams Decoder.swift
[22/23] Compiling Yams Emitter.swift
[23/23] Compiling Yams Encoder.swift
BUILD FAILURE 6.1 wasm