Swift Package IndexBuild Information
Failed to build PreciseISO8601DateFormatter, reference v1.0.3 (fd0062), with Swift 6.3 for Wasm on 23 Apr 2026 06:16:03 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/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
========================================
Clone URL: https://github.com/shareup/precise-iso-8601-date-formatter.git
Reference: v1.0.3
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/shareup/precise-iso-8601-date-formatter
* tag v1.0.3 -> FETCH_HEAD
HEAD is now at fd00625 Update .swiftformat
Cloned https://github.com/shareup/precise-iso-8601-date-formatter.git
Revision (git rev-parse @):
fd00625bf71b9e1807de0e03e7d2d5e509cee1d4
SUCCESS checkout https://github.com/shareup/precise-iso-8601-date-formatter.git at v1.0.3
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/shareup/precise-iso-8601-date-formatter.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/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/shareup/synchronized.git
[1/226] Fetching synchronized
Fetched https://github.com/shareup/synchronized.git from cache (0.37s)
Computing version for https://github.com/shareup/synchronized.git
Computed https://github.com/shareup/synchronized.git at 4.0.1 (0.97s)
Creating working copy for https://github.com/shareup/synchronized.git
Working copy of https://github.com/shareup/synchronized.git resolved at 4.0.1
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/7] Emitting module Synchronized
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:4:47: error: cannot find type 'os_unfair_lock' in scope
2 |
3 | public final class Lock {
4 | private var backing: UnsafeMutablePointer<os_unfair_lock>
| `- error: cannot find type 'os_unfair_lock' in scope
5 |
6 | public init() {
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:4:54: error: cannot find type 'os_unfair_lock' in scope
2 |
3 | public struct Locked<Element> {
4 | private final class Lock: ManagedBuffer<Element, os_unfair_lock> {
| `- error: cannot find type 'os_unfair_lock' in scope
5 | deinit {
6 | withUnsafeMutablePointerToElements { lock in
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:12:48: error: cannot find type 'os_unfair_lock' in scope
10 | }
11 |
12 | private let buffer: ManagedBuffer<Element, os_unfair_lock>
| `- error: cannot find type 'os_unfair_lock' in scope
13 |
14 | public init(_ element: Element) {
[5/7] Compiling Synchronized Lock.swift
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:4:47: error: cannot find type 'os_unfair_lock' in scope
2 |
3 | public final class Lock {
4 | private var backing: UnsafeMutablePointer<os_unfair_lock>
| `- error: cannot find type 'os_unfair_lock' in scope
5 |
6 | public init() {
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:7:40: error: cannot find type 'os_unfair_lock' in scope
5 |
6 | public init() {
7 | backing = UnsafeMutablePointer<os_unfair_lock>.allocate(capacity: 1)
| `- error: cannot find type 'os_unfair_lock' in scope
8 | backing.initialize(to: os_unfair_lock())
9 | }
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:8:32: error: cannot find 'os_unfair_lock' in scope
6 | public init() {
7 | backing = UnsafeMutablePointer<os_unfair_lock>.allocate(capacity: 1)
8 | backing.initialize(to: os_unfair_lock())
| `- error: cannot find 'os_unfair_lock' in scope
9 | }
10 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:18:9: error: cannot find 'os_unfair_lock_lock' in scope
16 | public func locked<T>(_ block: () throws -> T) rethrows -> T {
17 | // https://developer.apple.com/documentation/os/1646466-os_unfair_lock_lock
18 | os_unfair_lock_lock(backing)
| `- error: cannot find 'os_unfair_lock_lock' in scope
19 | defer { os_unfair_lock_unlock(backing) }
20 | return try block()
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:19:17: error: cannot find 'os_unfair_lock_unlock' in scope
17 | // https://developer.apple.com/documentation/os/1646466-os_unfair_lock_lock
18 | os_unfair_lock_lock(backing)
19 | defer { os_unfair_lock_unlock(backing) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
20 | return try block()
21 | }
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:25:12: error: cannot find 'os_unfair_lock_trylock' in scope
23 | public func tryLocked(_ block: () throws -> Void) rethrows -> Bool {
24 | // https://developer.apple.com/documentation/os/1646469-os_unfair_lock_trylock
25 | if os_unfair_lock_trylock(backing) {
| `- error: cannot find 'os_unfair_lock_trylock' in scope
26 | defer { os_unfair_lock_unlock(backing) }
27 | try block()
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Lock.swift:26:21: error: cannot find 'os_unfair_lock_unlock' in scope
24 | // https://developer.apple.com/documentation/os/1646469-os_unfair_lock_trylock
25 | if os_unfair_lock_trylock(backing) {
26 | defer { os_unfair_lock_unlock(backing) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
27 | try block()
28 | return true
[6/7] Compiling Synchronized RecursiveLock.swift
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:11:15: error: cannot find 'pthread_mutexattr_init' in scope
9 |
10 | var attributes = pthread_mutexattr_t()
11 | guard pthread_mutexattr_init(&attributes) == 0
| `- error: cannot find 'pthread_mutexattr_init' in scope
12 | else { preconditionFailure() }
13 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:14:15: error: cannot find 'pthread_mutexattr_settype' in scope
12 | else { preconditionFailure() }
13 |
14 | guard pthread_mutexattr_settype(&attributes, PTHREAD_MUTEX_RECURSIVE) == 0
| `- error: cannot find 'pthread_mutexattr_settype' in scope
15 | else { preconditionFailure() }
16 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:14:54: error: cannot find 'PTHREAD_MUTEX_RECURSIVE' in scope
12 | else { preconditionFailure() }
13 |
14 | guard pthread_mutexattr_settype(&attributes, PTHREAD_MUTEX_RECURSIVE) == 0
| `- error: cannot find 'PTHREAD_MUTEX_RECURSIVE' in scope
15 | else { preconditionFailure() }
16 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:17:15: error: cannot find 'pthread_mutex_init' in scope
15 | else { preconditionFailure() }
16 |
17 | guard pthread_mutex_init(backing, &attributes) == 0
| `- error: cannot find 'pthread_mutex_init' in scope
18 | else { preconditionFailure() }
19 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:20:9: error: cannot find 'pthread_mutexattr_destroy' in scope
18 | else { preconditionFailure() }
19 |
20 | pthread_mutexattr_destroy(&attributes)
| `- error: cannot find 'pthread_mutexattr_destroy' in scope
21 | }
22 |
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:24:9: error: cannot find 'pthread_mutex_destroy' in scope
22 |
23 | deinit {
24 | pthread_mutex_destroy(backing)
| `- error: cannot find 'pthread_mutex_destroy' in scope
25 | backing.deinitialize(count: 1)
26 | backing.deallocate()
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:30:19: error: cannot find 'pthread_mutex_lock' in scope
28 |
29 | public func locked<T>(_ block: () throws -> T) rethrows -> T {
30 | let ret = pthread_mutex_lock(backing)
| `- error: cannot find 'pthread_mutex_lock' in scope
31 | // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/pthread_mutex_lock.3.html
32 | precondition(ret == 0, "Could not acquire lock: '\(ret)'")
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:33:17: error: cannot find 'pthread_mutex_unlock' in scope
31 | // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/pthread_mutex_lock.3.html
32 | precondition(ret == 0, "Could not acquire lock: '\(ret)'")
33 | defer { pthread_mutex_unlock(backing) }
| `- error: cannot find 'pthread_mutex_unlock' in scope
34 | return try block()
35 | }
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:39:12: error: cannot find 'pthread_mutex_trylock' in scope
37 | public func tryLocked(_ block: () throws -> Void) rethrows -> Bool {
38 | // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/pthread_mutex_trylock.3.html#//apple_ref/doc/man/3/pthread_mutex_trylock
39 | if pthread_mutex_trylock(backing) == 0 {
| `- error: cannot find 'pthread_mutex_trylock' in scope
40 | defer { pthread_mutex_unlock(backing) }
41 | try block()
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/RecursiveLock.swift:40:21: error: cannot find 'pthread_mutex_unlock' in scope
38 | // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/pthread_mutex_trylock.3.html#//apple_ref/doc/man/3/pthread_mutex_trylock
39 | if pthread_mutex_trylock(backing) == 0 {
40 | defer { pthread_mutex_unlock(backing) }
| `- error: cannot find 'pthread_mutex_unlock' in scope
41 | try block()
42 | return true
[7/7] Compiling Synchronized Locked.swift
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:4:54: error: cannot find type 'os_unfair_lock' in scope
2 |
3 | public struct Locked<Element> {
4 | private final class Lock: ManagedBuffer<Element, os_unfair_lock> {
| `- error: cannot find type 'os_unfair_lock' in scope
5 | deinit {
6 | withUnsafeMutablePointerToElements { lock in
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:12:48: error: cannot find type 'os_unfair_lock' in scope
10 | }
11 |
12 | private let buffer: ManagedBuffer<Element, os_unfair_lock>
| `- error: cannot find type 'os_unfair_lock' in scope
13 |
14 | public init(_ element: Element) {
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:6:13: error: failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs)
4 | private final class Lock: ManagedBuffer<Element, os_unfair_lock> {
5 | deinit {
6 | withUnsafeMutablePointerToElements { lock in
| `- error: failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs)
7 | _ = lock.deinitialize(count: 1)
8 | }
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:17:35: error: cannot find 'os_unfair_lock' in scope
15 | buffer = Lock.create(minimumCapacity: 1) { buffer in
16 | buffer.withUnsafeMutablePointerToElements {
17 | $0.initialize(to: os_unfair_lock())
| `- error: cannot find 'os_unfair_lock' in scope
18 | }
19 | return element
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:15:16: error: failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs)
13 |
14 | public init(_ element: Element) {
15 | buffer = Lock.create(minimumCapacity: 1) { buffer in
| `- error: failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs)
16 | buffer.withUnsafeMutablePointerToElements {
17 | $0.initialize(to: os_unfair_lock())
/host/spi-builder-workspace/.build/checkouts/synchronized/Sources/Synchronized/Locked.swift:25:13: error: cannot find 'os_unfair_lock_lock' in scope
23 | public func access<Return>(_ block: (inout Element) throws -> Return) rethrows -> Return {
24 | try buffer.withUnsafeMutablePointers { element, lock in
25 | os_unfair_lock_lock(lock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
26 | defer { os_unfair_lock_unlock(lock) }
27 | return try block(&element.pointee)
BUILD FAILURE 6.3 wasm