Swift Package Index

Build Information

Failed to build package-histogram, reference main (93a161), with Swift 6.2 (beta) for Wasm on 23 Jun 2025 03:48:47 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.2-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/HdrHistogram/hdrhistogram-swift.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/HdrHistogram/hdrhistogram-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 93a1618 add Sendable conformance (#27)
Cloned https://github.com/HdrHistogram/hdrhistogram-swift.git
Revision (git rev-parse @):
93a1618c8aa20f6a521a9da656a3e0591889e9dc
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/HdrHistogram/hdrhistogram-swift.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/HdrHistogram/hdrhistogram-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:44384f43f933eaa0f42803e9ef7c3d8388c5841ccc831a15a5edf63d8c273423
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest
Fetching https://github.com/apple/swift-docc-plugin
[1/2082] Fetching swift-docc-plugin
Fetching https://github.com/apple/swift-numerics
Fetched https://github.com/apple/swift-docc-plugin from cache (0.64s)
[1/5757] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (0.64s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.4 (2.16s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3415] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.63s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.60s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.0.3 (0.79s)
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/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.4
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.0.3
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/16] Write sources
[7/16] Compiling _NumericsShims _NumericsShims.c
[8/16] Write swift-version-24593BA9C3E375BF.txt
[10/26] Compiling RealModule AugmentedArithmetic.swift
[11/26] Compiling RealModule Double+Real.swift
[12/27] Compiling RealModule Real.swift
[13/27] Compiling RealModule RealFunctions.swift
[14/27] Emitting module RealModule
[15/27] Compiling RealModule AlgebraicField.swift
[16/27] Compiling RealModule ApproximateEquality.swift
[17/27] Compiling RealModule Float16+Real.swift
[18/27] Compiling RealModule Float80+Real.swift
[19/27] Compiling RealModule ElementaryFunctions.swift
[20/27] Compiling RealModule Float+Real.swift
[21/28] Wrapping AST for RealModule for debugging
[23/33] Compiling ComplexModule Differentiable.swift
[24/33] Compiling ComplexModule Arithmetic.swift
[25/33] Emitting module ComplexModule
[26/33] Compiling ComplexModule Complex.swift
[27/33] Compiling ComplexModule ElementaryFunctions.swift
[28/34] Wrapping AST for ComplexModule for debugging
[30/36] Emitting module Numerics
[31/36] Compiling Numerics Numerics.swift
[32/37] Wrapping AST for Numerics for debugging
[34/39] Emitting module Histogram
[35/39] Compiling Histogram Histogram.swift
/host/spi-builder-workspace/Sources/Histogram/Histogram.swift:1392:25: error: cannot find 'vsnprintf' in scope
1390 |                 // string.
1391 |                 0..<bufferSize ~= format.withCString {
1392 |                     Int(vsnprintf(ptr.baseAddress, bufferSize, $0, va_list))
     |                         `- error: cannot find 'vsnprintf' in scope
1393 |                 }
1394 |             }
BUILD FAILURE 6.2 wasm