Swift Package IndexBuild Information
Failed to build swift-ntp, reference main (418c59), with Swift 6.2 for Wasm on 5 Jan 2026 17:41:53 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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
========================================
Clone URL: https://github.com/apple/swift-ntp.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/apple/swift-ntp
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 418c594 Fixed: potential arithmetic overflow in NTPPacket.getOffset() (#11)
Cloned https://github.com/apple/swift-ntp.git
Revision (git rev-parse @):
418c5943019f8132740df05ae5b4acc9c23e1cb7
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-ntp.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/apple/swift-ntp.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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:ea378e7d7954b9ce813c0ebc8f6bc113436e2b3d5aa4fd45225da8bf07e6be73
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
[1/81175] Fetching swift-nio
Fetching https://github.com/swiftlang/swift-docc-plugin.git
Fetched https://github.com/apple/swift-nio.git from cache (8.12s)
[1/2158] Fetching swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin.git from cache (0.65s)
Computing version for https://github.com/swiftlang/swift-docc-plugin.git
Computed https://github.com/swiftlang/swift-docc-plugin.git at 1.4.5 (11.00s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3633] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.43s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.91s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.92.0 (1.00s)
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-atomics.git
[1/1820] Fetching swift-atomics
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[7058/25488] Fetching swift-atomics, swift-system, swift-collections
Fetched https://github.com/apple/swift-atomics.git from cache (0.54s)
Fetched https://github.com/apple/swift-system.git from cache (0.55s)
[4608/18431] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.54s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (1.89s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.3 (0.50s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.3.0 (0.65s)
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-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.3
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 2.92.0
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/swiftlang/swift-docc-plugin.git
Working copy of https://github.com/swiftlang/swift-docc-plugin.git resolved at 1.4.5
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/38] Write sources
[12/38] Compiling CNIOWindows shim.c
[13/38] Compiling CNIOWASI CNIOWASI.c
[14/38] Compiling CNIOWindows WSAStartup.c
[14/38] Compiling CNIOOpenBSD shim.c
[14/38] Compiling CNIOPosix event_loop_id.c
[17/38] Write sources
[18/38] Compiling _AtomicsShims.c
[19/38] Compiling CNIOLinux shim.c
[20/38] Compiling CNIODarwin shim.c
[21/38] Compiling CNIOLinux liburing_shims.c
[22/38] Compiling c-nioatomics.c
[23/38] Compiling c-atomics.c
[23/38] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[26/48] Emitting module NIOConcurrencyHelpers
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:32:8: error: The concurrency NIOLock module was unable to identify your C library.
30 | #endif
31 | #else
32 | #error("The concurrency NIOLock module was unable to identify your C library.")
| `- error: The concurrency NIOLock module was unable to identify your C library.
33 | #endif
34 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/atomics.swift:38:8: error: The concurrency atomics module was unable to identify your C library.
36 | @preconcurrency import WASILibc
37 | #else
38 | #error("The concurrency atomics module was unable to identify your C library.")
| `- error: The concurrency atomics module was unable to identify your C library.
39 | #endif
40 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/lock.swift:32:8: error: The concurrency lock module was unable to identify your C library.
30 | #endif
31 | #else
32 | #error("The concurrency lock module was unable to identify your C library.")
| `- error: The concurrency lock module was unable to identify your C library.
33 | #endif
34 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:43:27: error: cannot find type 'pthread_mutex_t' in scope
41 | #else
42 | @usableFromInline
43 | typealias LockPrimitive = pthread_mutex_t
| `- error: cannot find type 'pthread_mutex_t' in scope
44 | #endif
45 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:143:27: error: type of expression is ambiguous without a type annotation
141 | @inlinable
142 | static func create(value: Value) -> Self {
143 | let buffer = Self.create(minimumCapacity: 1) { _ in
| `- error: type of expression is ambiguous without a type annotation
144 | value
145 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:160:14: error: type of expression is ambiguous without a type annotation
158 | @inlinable
159 | func lock() {
160 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
161 | LockOperations.lock(lockPtr)
162 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:167:14: error: type of expression is ambiguous without a type annotation
165 | @inlinable
166 | func unlock() {
167 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
168 | LockOperations.unlock(lockPtr)
169 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:174:14: error: type of expression is ambiguous without a type annotation
172 | @inlinable
173 | deinit {
174 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
175 | LockOperations.destroy(lockPtr)
176 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:181:18: error: type of expression is ambiguous without a type annotation
179 | @inlinable
180 | func withLockPrimitive<T>(_ body: (UnsafeMutablePointer<LockPrimitive>) throws -> T) rethrows -> T {
181 | try self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
182 | try body(lockPtr)
183 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:188:18: error: type of expression is ambiguous without a type annotation
186 | @inlinable
187 | func withLockedValue<T>(_ mutate: (inout Value) throws -> T) rethrows -> T {
188 | try self.withUnsafeMutablePointers { valuePtr, lockPtr in
| `- error: type of expression is ambiguous without a type annotation
189 | LockOperations.lock(lockPtr)
190 | defer { LockOperations.unlock(lockPtr) }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLockedValueBox.swift:75:31: error: type of expression is ambiguous without a type annotation
73 | _ mutate: (_ value: inout Value) throws -> Result
74 | ) rethrows -> Result {
75 | try self._storage.withUnsafeMutablePointerToHeader { value in
| `- error: type of expression is ambiguous without a type annotation
76 | try mutate(&value.pointee)
77 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/atomics.swift:42:9: error: cannot find 'sched_yield' in scope
40 |
41 | private func sys_sched_yield() {
42 | _ = sched_yield()
| `- error: cannot find 'sched_yield' in scope
43 | }
44 | #endif
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/lock.swift:50:49: error: cannot find type 'pthread_mutex_t' in scope
48 | UnsafeMutablePointer.allocate(capacity: 1)
49 | #else
50 | fileprivate let mutex: UnsafeMutablePointer<pthread_mutex_t> =
| `- error: cannot find type 'pthread_mutex_t' in scope
51 | UnsafeMutablePointer.allocate(capacity: 1)
52 | #endif
error: emit-module command failed with exit code 1 (use -v to see invocation)
[27/48] 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)
error: emit-module command failed with exit code 1 (use -v to see invocation)
[28/48] Emitting module _NIOBase64
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/_NIOBase64/Base64.swift:112:39: error: cannot use a value of protocol type 'any Error' in embedded Swift
27 | @inlinable
28 | public func base64Decoded() throws -> [UInt8] {
29 | try self._base64Decoded()
| `- note: called from here
30 | }
31 |
:
38 | @inlinable
39 | public func _base64Decoded() throws -> [UInt8] {
40 | try Base64.decode(string: self)
| `- note: called from here
41 | }
42 | }
:
110 | if bytes[i + 2] != Base64.encodePaddingCharacter {
111 | guard let byte2Index = Base64.encodingTable.firstIndex(of: bytes[i + 2]) else {
112 | throw Base64Error.invalidCharacter
| `- error: cannot use a value of protocol type 'any Error' in embedded Swift
113 | }
114 |
[29/48] Compiling NIOConcurrencyHelpers NIOAtomic.swift
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:32:8: error: The concurrency NIOLock module was unable to identify your C library.
30 | #endif
31 | #else
32 | #error("The concurrency NIOLock module was unable to identify your C library.")
| `- error: The concurrency NIOLock module was unable to identify your C library.
33 | #endif
34 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/atomics.swift:38:8: error: The concurrency atomics module was unable to identify your C library.
36 | @preconcurrency import WASILibc
37 | #else
38 | #error("The concurrency atomics module was unable to identify your C library.")
| `- error: The concurrency atomics module was unable to identify your C library.
39 | #endif
40 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/lock.swift:32:8: error: The concurrency lock module was unable to identify your C library.
30 | #endif
31 | #else
32 | #error("The concurrency lock module was unable to identify your C library.")
| `- error: The concurrency lock module was unable to identify your C library.
33 | #endif
34 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:43:27: error: cannot find type 'pthread_mutex_t' in scope
41 | #else
42 | @usableFromInline
43 | typealias LockPrimitive = pthread_mutex_t
| `- error: cannot find type 'pthread_mutex_t' in scope
44 | #endif
45 |
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:143:27: error: type of expression is ambiguous without a type annotation
141 | @inlinable
142 | static func create(value: Value) -> Self {
143 | let buffer = Self.create(minimumCapacity: 1) { _ in
| `- error: type of expression is ambiguous without a type annotation
144 | value
145 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:160:14: error: type of expression is ambiguous without a type annotation
158 | @inlinable
159 | func lock() {
160 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
161 | LockOperations.lock(lockPtr)
162 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:167:14: error: type of expression is ambiguous without a type annotation
165 | @inlinable
166 | func unlock() {
167 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
168 | LockOperations.unlock(lockPtr)
169 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:174:14: error: type of expression is ambiguous without a type annotation
172 | @inlinable
173 | deinit {
174 | self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
175 | LockOperations.destroy(lockPtr)
176 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:181:18: error: type of expression is ambiguous without a type annotation
179 | @inlinable
180 | func withLockPrimitive<T>(_ body: (UnsafeMutablePointer<LockPrimitive>) throws -> T) rethrows -> T {
181 | try self.withUnsafeMutablePointerToElements { lockPtr in
| `- error: type of expression is ambiguous without a type annotation
182 | try body(lockPtr)
183 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLock.swift:188:18: error: type of expression is ambiguous without a type annotation
186 | @inlinable
187 | func withLockedValue<T>(_ mutate: (inout Value) throws -> T) rethrows -> T {
188 | try self.withUnsafeMutablePointers { valuePtr, lockPtr in
| `- error: type of expression is ambiguous without a type annotation
189 | LockOperations.lock(lockPtr)
190 | defer { LockOperations.unlock(lockPtr) }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/NIOLockedValueBox.swift:75:31: error: type of expression is ambiguous without a type annotation
73 | _ mutate: (_ value: inout Value) throws -> Result
74 | ) rethrows -> Result {
75 | try self._storage.withUnsafeMutablePointerToHeader { value in
| `- error: type of expression is ambiguous without a type annotation
76 | try mutate(&value.pointee)
77 | }
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/atomics.swift:42:9: error: cannot find 'sched_yield' in scope
40 |
41 | private func sys_sched_yield() {
42 | _ = sched_yield()
| `- error: cannot find 'sched_yield' in scope
43 | }
44 | #endif
/host/spi-builder-workspace/.build/checkouts/swift-nio/Sources/NIOConcurrencyHelpers/lock.swift:50:49: error: cannot find type 'pthread_mutex_t' in scope
48 | UnsafeMutablePointer.allocate(capacity: 1)
49 | #else
50 | fileprivate let mutex: UnsafeMutablePointer<pthread_mutex_t> =
| `- error: cannot find type 'pthread_mutex_t' in scope
51 | UnsafeMutablePointer.allocate(capacity: 1)
52 | #endif
/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 |
BUILD FAILURE 6.2 wasm