Swift Package IndexBuild Information
Failed to build swift-nbt, reference main (20349a), with Swift 6.3 for Wasm on 13 Apr 2026 12:14:13 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>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ezfe/swift-nbt.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/ezfe/swift-nbt
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 20349a3 Merge pull request #2 from thtTNT/main
Cloned https://github.com/ezfe/swift-nbt.git
Revision (git rev-parse @):
20349a3a0a7607352a1d3141160c44a3f0d9ada6
SUCCESS checkout https://github.com/ezfe/swift-nbt.git at main
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/ezfe/swift-nbt.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$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/apple/swift-docc-plugin.git
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/1024jp/GzipSwift.git
[1/1557] Fetching gzipswift
[1512/3828] Fetching gzipswift, swift-docc-plugin
[1762/27365] Fetching gzipswift, swift-docc-plugin, swift-collections
Fetched https://github.com/1024jp/GzipSwift.git from cache (0.24s)
[957/25808] Fetching swift-docc-plugin, swift-collections
Fetched https://github.com/apple/swift-docc-plugin.git from cache (0.44s)
[1883/23537] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.38s)
Computing version for https://github.com/1024jp/GzipSwift.git
Computed https://github.com/1024jp/GzipSwift.git at 5.2.0 (3.78s)
Computing version for https://github.com/apple/swift-docc-plugin.git
Computed https://github.com/apple/swift-docc-plugin.git at 1.4.6 (0.57s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3672] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.74s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.37s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (0.75s)
Creating working copy for https://github.com/apple/swift-docc-plugin.git
Working copy of https://github.com/apple/swift-docc-plugin.git resolved at 1.4.6
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/1024jp/GzipSwift.git
Working copy of https://github.com/1024jp/GzipSwift.git resolved at 5.2.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/20] Write sources
[8/20] Compiling system-zlib anchor.c
[9/20] Write sources
[10/20] Write swift-version-24593BA9C3E375BF.txt
[12/46] Emitting module InternalCollectionsUtilities
[13/48] Compiling InternalCollectionsUtilities UnsafeMutableRawBufferPointer+Extras.swift
[14/48] Compiling InternalCollectionsUtilities UnsafeRawBufferPointer+Extras.swift
[15/48] Compiling InternalCollectionsUtilities String+Padding.swift
[16/48] Compiling InternalCollectionsUtilities _UnsafeBitSet+Index.swift
[17/48] Compiling InternalCollectionsUtilities LifetimeOverride.swift
[18/48] Compiling InternalCollectionsUtilities RandomAccessCollection+Offsets.swift
[19/48] Compiling InternalCollectionsUtilities Span+Extras.swift
[20/48] Compiling InternalCollectionsUtilities _SortedCollection.swift
[21/48] Compiling InternalCollectionsUtilities _UniqueCollection.swift
[22/48] Compiling InternalCollectionsUtilities _UnsafeBitSet+_Word.swift
[23/48] Compiling InternalCollectionsUtilities _UnsafeBitSet.swift
[24/48] Compiling InternalCollectionsUtilities Debugging.swift
[25/48] Compiling InternalCollectionsUtilities Descriptions.swift
[26/48] Compiling InternalCollectionsUtilities FixedWidthInteger+roundUpToPowerOfTwo.swift
[27/48] Compiling InternalCollectionsUtilities Integer rank.swift
[28/48] Compiling InternalCollectionsUtilities UInt+first and last set bit.swift
[29/48] Compiling InternalCollectionsUtilities UInt+reversed.swift
[30/48] Compiling InternalCollectionsUtilities UnsafeBufferPointer+Extras.swift
[31/48] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+Extras.swift
[32/49] Wrapping AST for InternalCollectionsUtilities for debugging
[34/104] Compiling OrderedCollections OrderedDictionary.swift
[35/104] Compiling OrderedCollections OrderedSet+Codable.swift
[36/104] Compiling OrderedCollections OrderedSet+CustomReflectable.swift
[37/104] Compiling OrderedCollections OrderedSet+Descriptions.swift
[38/104] Compiling OrderedCollections OrderedSet+Diffing.swift
[39/104] Compiling OrderedCollections OrderedSet+Equatable.swift
[40/104] Compiling OrderedCollections OrderedSet+ExpressibleByArrayLiteral.swift
[41/104] Compiling OrderedCollections OrderedSet+Hashable.swift
[42/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra intersection.swift
[43/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isDisjoint.swift
[44/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isEqualSet.swift
[45/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isStrictSubset.swift
[46/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isStrictSuperset.swift
[47/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isSubset.swift
[48/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isSuperset.swift
[49/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra subtract.swift
[50/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra subtracting.swift
[51/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra symmetricDifference.swift
[52/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra union.swift
[53/104] Compiling OrderedCollections OrderedSet+Partial SetAlgebra+Basics.swift
[54/104] Compiling OrderedCollections OrderedSet+RandomAccessCollection.swift
[55/104] Compiling OrderedCollections OrderedSet+ReserveCapacity.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[56/104] Emitting module Gzip
/host/spi-builder-workspace/.build/checkouts/GzipSwift/Sources/Gzip/Data+Gzip.swift:34:12: error: no such module 'zlib'
32 | import zlibLinux
33 | #else
34 | import zlib
| `- error: no such module 'zlib'
35 | #endif
36 |
[57/104] Compiling Gzip Data+Gzip.swift
/host/spi-builder-workspace/.build/checkouts/GzipSwift/Sources/Gzip/Data+Gzip.swift:34:12: error: no such module 'zlib'
32 | import zlibLinux
33 | #else
34 | import zlib
| `- error: no such module 'zlib'
35 | #endif
36 |
[58/111] Emitting module NBTStructures
[59/111] Emitting module DataTools
BUILD FAILURE 6.3 wasm