Swift Package IndexBuild Information
Failed to build swift-ntp, reference 0.3.1 (4a2f18), with Swift 6.2 for Wasm on 24 Nov 2025 11:45:01 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/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>&1Build Log
========================================
RunAll
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Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/apple/swift-ntp.git
Reference: 0.3.1
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/apple/swift-ntp
* tag 0.3.1 -> FETCH_HEAD
HEAD is now at 4a2f18f chore: restrict GitHub workflow permissions - future-proof (#9)
Cloned https://github.com/apple/swift-ntp.git
Revision (git rev-parse @):
4a2f18f36e897f5f28bb6a75e0c7223c65021736
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-ntp.git at 0.3.1
========================================
Build
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Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/apple/swift-ntp.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$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: sha256:302e3f347c593123f3d337e3da1bfe6e802bb8867614e9dfa745c72e13ca8eeb
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/embedded-swift-sdk.json
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/swiftlang/swift-docc-plugin.git
[1/2158] Fetching swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin.git from cache (0.45s)
[1/80477] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git from cache (6.43s)
Computing version for https://github.com/swiftlang/swift-docc-plugin.git
Computed https://github.com/swiftlang/swift-docc-plugin.git at 1.4.5 (9.29s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3581] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.53s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.23s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.90.1 (1.21s)
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-atomics.git
[1/1820] Fetching swift-atomics
[693/7002] Fetching swift-atomics, swift-system
Fetching https://github.com/apple/swift-collections.git
Fetched https://github.com/apple/swift-system.git from cache (0.74s)
Fetched https://github.com/apple/swift-atomics.git from cache (0.75s)
[1/18314] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (2.09s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (3.49s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.3 (1.47s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.3.0 (0.86s)
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.90.1
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.3
Creating working copy for https://github.com/swiftlang/swift-docc-plugin.git
Working copy of https://github.com/swiftlang/swift-docc-plugin.git 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
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/37] Write sources
[12/37] Compiling CNIOWindows shim.c
[13/37] Compiling CNIOWindows WSAStartup.c
[13/37] Compiling _AtomicsShims.c
[13/37] Compiling CNIOPosix event_loop_id.c
[14/37] Write sources
[14/37] Compiling CNIOWASI CNIOWASI.c
[18/37] Compiling CNIODarwin shim.c
[19/37] Compiling CNIOLinux shim.c
[20/37] Compiling CNIOLinux liburing_shims.c
[21/37] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[23/45] Emitting module _NIODataStructures
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:27:8: error: The Heap module was unable to identify your C library.
25 | @preconcurrency import Bionic
26 | #else
27 | #error("The Heap module was unable to identify your C library.")
| `- error: The Heap module was unable to identify your C library.
28 | #endif
29 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:170:47: error: 'init(describing:)' is unavailable: unavailable in embedded Swift
168 | return "<empty heap>"
169 | }
170 | let descriptions = self.storage.map { String(describing: $0) }
| `- error: 'init(describing:)' is unavailable: unavailable in embedded Swift
171 | let maxLen: Int = descriptions.map { $0.count }.max()! // storage checked non-empty above
172 | let paddedDescs = descriptions.map { (desc: String) -> String in
Swift.String.init:2:8: note: 'init(describing:)' has been explicitly marked unavailable here
1 | struct String {
2 | public init<Subject>(describing instance: Subject)}
| `- note: 'init(describing:)' has been explicitly marked unavailable here
3 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:208:21: error: cannot find 'log2' in scope
206 |
207 | func height(index: Int) -> Int {
208 | Int(log2(Double(index + 1)))
| `- error: cannot find 'log2' in scope
209 | }
210 | let myHeight = height(index: index)
[24/45] Compiling _NIODataStructures Heap.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:27:8: error: The Heap module was unable to identify your C library.
25 | @preconcurrency import Bionic
26 | #else
27 | #error("The Heap module was unable to identify your C library.")
| `- error: The Heap module was unable to identify your C library.
28 | #endif
29 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:170:47: error: 'init(describing:)' is unavailable: unavailable in embedded Swift
168 | return "<empty heap>"
169 | }
170 | let descriptions = self.storage.map { String(describing: $0) }
| `- error: 'init(describing:)' is unavailable: unavailable in embedded Swift
171 | let maxLen: Int = descriptions.map { $0.count }.max()! // storage checked non-empty above
172 | let paddedDescs = descriptions.map { (desc: String) -> String in
Swift.String.init:2:8: note: 'init(describing:)' has been explicitly marked unavailable here
1 | struct String {
2 | public init<Subject>(describing instance: Subject)}
| `- note: 'init(describing:)' has been explicitly marked unavailable here
3 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIODataStructures/Heap.swift:208:21: error: cannot find 'log2' in scope
206 |
207 | func height(index: Int) -> Int {
208 | Int(log2(Double(index + 1)))
| `- error: cannot find 'log2' in scope
209 | }
210 | let myHeight = height(index: index)
[24/45] Compiling c-nioatomics.c
[24/45] Compiling c-atomics.c
BUILD FAILURE 6.2 wasm