Build Information
Failed to build Siesta, reference 1.5.2 (43f340), with Swift 6.3 for macOS (SPM) on 11 Apr 2026 22:42:15 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
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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/bustoutsolutions/siesta.git
Reference: 1.5.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bustoutsolutions/siesta
* tag 1.5.2 -> FETCH_HEAD
HEAD is now at 43f3404 Merge pull request #314 from bustoutsolutions/bump-swift-package-version
Cloned https://github.com/bustoutsolutions/siesta.git
Revision (git rev-parse @):
43f34046ebb5beb6802200353c473af303bbc31e
SUCCESS checkout https://github.com/bustoutsolutions/siesta.git at 1.5.2
Fetching https://github.com/Quick/Nimble
Fetching https://github.com/mattgallagher/CwlCatchException.git
Fetching https://github.com/pcantrell/Quick
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching https://github.com/Alamofire/Alamofire
[1/460] Fetching cwlcatchexception
[296/10158] Fetching cwlcatchexception, quick
[1431/11415] Fetching cwlcatchexception, quick, cwlpreconditiontesting
[1582/42912] Fetching cwlcatchexception, quick, cwlpreconditiontesting, alamofire
[2047/62729] Fetching cwlcatchexception, quick, cwlpreconditiontesting, alamofire, nimble
Fetched https://github.com/Quick/Nimble from cache (4.70s)
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (4.70s)
Fetched https://github.com/Alamofire/Alamofire from cache (4.70s)
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (4.70s)
Fetched https://github.com/pcantrell/Quick from cache (4.70s)
Computing version for https://github.com/Quick/Nimble
Computed https://github.com/Quick/Nimble at 8.0.5 (5.56s)
Computing version for https://github.com/pcantrell/Quick
Computed https://github.com/pcantrell/Quick at 0.0.0 (0.87s)
Computing version for https://github.com/Alamofire/Alamofire
Computed https://github.com/Alamofire/Alamofire at 5.0.5 (0.77s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 1.2.0 (2.30s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 1.2.0 (2.30s)
Creating working copy for https://github.com/Alamofire/Alamofire
Working copy of https://github.com/Alamofire/Alamofire resolved at 5.0.5
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 1.2.0
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 8.0.5
Creating working copy for https://github.com/pcantrell/Quick
Working copy of https://github.com/pcantrell/Quick resolved at 0.0.0
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 1.2.0
========================================
ResolveProductDependencies
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Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "siesta",
"name": "Siesta",
"url": "https://github.com/bustoutsolutions/siesta.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/siesta",
"traits": [
"default"
],
"dependencies": [
{
"identity": "alamofire",
"name": "Alamofire",
"url": "https://github.com/Alamofire/Alamofire",
"version": "5.11.2",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Alamofire",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
Fetching https://github.com/bustoutsolutions/siesta.git
[1/14631] Fetching siesta
Fetched https://github.com/bustoutsolutions/siesta.git from cache (1.64s)
Fetching https://github.com/Alamofire/Alamofire from cache
Fetched https://github.com/Alamofire/Alamofire from cache (0.66s)
Computing version for https://github.com/Alamofire/Alamofire
Computed https://github.com/Alamofire/Alamofire at 5.11.2 (1.28s)
Creating working copy for https://github.com/Alamofire/Alamofire
Working copy of https://github.com/Alamofire/Alamofire resolved at 5.11.2
Creating working copy for https://github.com/bustoutsolutions/siesta.git
Working copy of https://github.com/bustoutsolutions/siesta.git resolved at 1.5.2 (43f3404)
warning: '.resolve-product-dependencies': dependency 'siesta' is not used by any target
Found 1 product dependencies
- Alamofire
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/bustoutsolutions/siesta.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/15] Write sources
[0/15] Copying ResourceStatusOverlay.xib
[0/15] Write sources
[7/15] Write swift-version--6988338F2F200930.txt
[8/80] Compiling CwlMachBadInstructionHandler mach_excServer.c
[9/80] Compiling CwlCatchExceptionSupport CwlCatchException.m
[10/82] Compiling CwlMachBadInstructionHandler CwlMachBadInstructionHandler.m
[12/82] Emitting module Alamofire
[13/85] Compiling Alamofire MultipartFormData.swift
[14/85] Compiling Alamofire MultipartUpload.swift
[15/85] Compiling Alamofire NetworkReachabilityManager.swift
[16/85] Compiling Alamofire ParameterEncoding.swift
[17/85] Compiling Alamofire Protector.swift
[18/85] Compiling Alamofire RedirectHandler.swift
[19/85] Compiling Alamofire AFError.swift
[20/85] Compiling Alamofire Alamofire.swift
[21/85] Compiling Alamofire AlamofireExtended.swift
[22/85] Compiling Alamofire CachedResponseHandler.swift
[23/85] Compiling Alamofire URLRequest+Alamofire.swift
[24/85] Compiling Alamofire URLSessionConfiguration+Alamofire.swift
[25/85] Compiling Alamofire Validation.swift
[26/85] Compiling Alamofire Response.swift
[27/85] Compiling Alamofire ResponseSerialization.swift
[28/85] Compiling Alamofire Result+Alamofire.swift
[29/85] Compiling Alamofire Notifications.swift
[30/85] Compiling Alamofire OperationQueue+Alamofire.swift
[31/85] Compiling Alamofire ParameterEncoder.swift
[32/85] Compiling Alamofire SessionDelegate.swift
[33/85] Compiling Alamofire URLConvertible+URLRequestConvertible.swift
[34/85] Compiling Alamofire URLEncodedFormEncoder.swift
[35/85] Compiling Alamofire RetryPolicy.swift
[36/85] Compiling Alamofire ServerTrustEvaluation.swift
[37/85] Compiling Alamofire Session.swift
[38/85] Compiling Alamofire Request.swift
[39/85] Compiling Alamofire RequestInterceptor.swift
[40/85] Compiling Alamofire RequestTaskMap.swift
[41/85] Compiling Alamofire DispatchQueue+Alamofire.swift
[42/85] Compiling Alamofire EventMonitor.swift
[43/85] Compiling Alamofire HTTPHeaders.swift
[44/85] Compiling Alamofire HTTPMethod.swift
[45/85] Compiling CwlCatchException CwlCatchException.swift
[46/85] Emitting module CwlCatchException
[46/85] Write Objects.LinkFileList
[47/85] Linking libCwlCatchException.dylib
[55/92] Compiling Siesta GCD+Siesta.swift
[56/92] Compiling Siesta Logging.swift
/Users/admin/builder/spi-builder-workspace/Source/Siesta/Support/ARC+Siesta.swift:78:30: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
59 | after the referenced object has been deallocated, making it suitable for use as a Set member and a Dictionary key.
60 | */
61 | internal struct WeakRef<T: AnyObject>: Hashable
| `- note: 'T' previously declared here
62 | {
63 | private(set) weak var value: T?
:
76 | { hasher.combine(originalHash) }
77 |
78 | internal static func == <T>(lhs: WeakRef<T>, rhs: WeakRef<T>) -> Bool
| `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
79 | {
80 | return lhs.originalIdentity == rhs.originalIdentity
/Users/admin/builder/spi-builder-workspace/Source/Siesta/Support/ARC+Siesta.swift:78:30: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
59 | after the referenced object has been deallocated, making it suitable for use as a Set member and a Dictionary key.
60 | */
61 | internal struct WeakRef<T: AnyObject>: Hashable
| `- note: 'T' previously declared here
62 | {
63 | private(set) weak var value: T?
:
76 | { hasher.combine(originalHash) }
77 |
78 | internal static func == <T>(lhs: WeakRef<T>, rhs: WeakRef<T>) -> Bool
| `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
79 | {
80 | return lhs.originalIdentity == rhs.originalIdentity
/Users/admin/builder/spi-builder-workspace/Source/Siesta/Support/ARC+Siesta.swift:78:30: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
59 | after the referenced object has been deallocated, making it suitable for use as a Set member and a Dictionary key.
60 | */
61 | internal struct WeakRef<T: AnyObject>: Hashable
| `- note: 'T' previously declared here
62 | {
63 | private(set) weak var value: T?
:
76 | { hasher.combine(originalHash) }
77 |
78 | internal static func == <T>(lhs: WeakRef<T>, rhs: WeakRef<T>) -> Bool
| `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
79 | {
80 | return lhs.originalIdentity == rhs.originalIdentity
/Users/admin/builder/spi-builder-workspace/Source/Siesta/Support/ARC+Siesta.swift:78:30: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
59 | after the referenced object has been deallocated, making it suitable for use as a Set member and a Dictionary key.
60 | */
61 | internal struct WeakRef<T: AnyObject>: Hashable
| `- note: 'T' previously declared here
62 | {
63 | private(set) weak var value: T?
:
76 | { hasher.combine(originalHash) }
77 |
78 | internal static func == <T>(lhs: WeakRef<T>, rhs: WeakRef<T>) -> Bool
| `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
79 | {
80 | return lhs.originalIdentity == rhs.originalIdentity
[65/92] Compiling Siesta URL+Siesta.swift
[66/92] Compiling Siesta WeakCache.swift
[67/92] Compiling Siesta Ω_Deprecations.swift
[68/92] Emitting module Siesta
/Users/admin/builder/spi-builder-workspace/Source/Siesta/Support/ARC+Siesta.swift:78:30: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
59 | after the referenced object has been deallocated, making it suitable for use as a Set member and a Dictionary key.
60 | */
61 | internal struct WeakRef<T: AnyObject>: Hashable
| `- note: 'T' previously declared here
62 | {
63 | private(set) weak var value: T?
:
76 | { hasher.combine(originalHash) }
77 |
78 | internal static func == <T>(lhs: WeakRef<T>, rhs: WeakRef<T>) -> Bool
| `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
79 | {
80 | return lhs.originalIdentity == rhs.originalIdentity
error: emit-module command failed with exit code 1 (use -v to see invocation)
[87/102] Emitting module CwlPreconditionTesting
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlDarwinDefinitions.swift:44:59: error: cannot find type 'x86_thread_state64_t' in scope
42 | // #define x86_THREAD_STATE64_COUNT ((mach_msg_type_number_t) \
43 | // ( sizeof (x86_thread_state64_t) / sizeof (int) ))
44 | public let x86_THREAD_STATE64_COUNT = UInt32(MemoryLayout<x86_thread_state64_t>.size / MemoryLayout<Int32>.size)
| `- error: cannot find type 'x86_thread_state64_t' in scope
45 |
46 | public let EXC_TYPES_COUNT = 14
[88/102] Compiling CwlPreconditionTesting CwlBadInstructionException.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlDarwinDefinitions.swift:44:59: error: cannot find type 'x86_thread_state64_t' in scope
42 | // #define x86_THREAD_STATE64_COUNT ((mach_msg_type_number_t) \
43 | // ( sizeof (x86_thread_state64_t) / sizeof (int) ))
44 | public let x86_THREAD_STATE64_COUNT = UInt32(MemoryLayout<x86_thread_state64_t>.size / MemoryLayout<Int32>.size)
| `- error: cannot find type 'x86_thread_state64_t' in scope
45 |
46 | public let EXC_TYPES_COUNT = 14
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlBadInstructionException.swift:63:47: error: cannot find 'x86_thread_state64_t' in scope
61 |
62 | // Read the old thread state
63 | var state = old_state.withMemoryRebound(to: x86_thread_state64_t.self, capacity: 1) { return $0.pointee }
| `- error: cannot find 'x86_thread_state64_t' in scope
64 |
65 | // 1. Decrement the stack pointer
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlBadInstructionException.swift:63:25: error: generic parameter 'T' could not be inferred
61 |
62 | // Read the old thread state
63 | var state = old_state.withMemoryRebound(to: x86_thread_state64_t.self, capacity: 1) { return $0.pointee }
| `- error: generic parameter 'T' could not be inferred
64 |
65 | // 1. Decrement the stack pointer
Swift.UnsafePointer.withMemoryRebound:2:13: note: in call to function 'withMemoryRebound(to:capacity:_:)'
1 | generic struct UnsafePointer {
2 | public func withMemoryRebound<T, E, Result>(to type: T.Type, capacity count: Int, _ body: (_ pointer: UnsafePointer<T>) throws(E) -> Result) throws(E) -> Result where E : Error, T : ~Copyable, Result : ~Copyable}
| `- note: in call to function 'withMemoryRebound(to:capacity:_:)'
3 |
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlBadInstructionException.swift:82:35: error: cannot find 'x86_thread_state64_t' in scope
80 |
81 | // Write the new thread state
82 | new_state.withMemoryRebound(to: x86_thread_state64_t.self, capacity: 1) { $0.pointee = state }
| `- error: cannot find 'x86_thread_state64_t' in scope
83 | new_stateCnt.pointee = x86_THREAD_STATE64_COUNT
84 |
[89/102] Compiling CwlPreconditionTesting CwlCatchBadInstruction.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlCatchBadInstruction.swift:185:166: error: cannot find 'x86_THREAD_STATE64' in scope
183 | try kernCheck { context.withUnsafeMutablePointers { masksPtr, countPtr, portsPtr, behaviorsPtr, flavorsPtr in
184 | // 3. Apply the mach port as the handler for this thread
185 | thread_swap_exception_ports(mach_thread_self(), EXC_MASK_BAD_INSTRUCTION, currentExceptionPtr, Int32(bitPattern: UInt32(EXCEPTION_STATE) | MACH_EXCEPTION_CODES), x86_THREAD_STATE64, masksPtr, countPtr, portsPtr, behaviorsPtr, flavorsPtr)
| `- error: cannot find 'x86_THREAD_STATE64' in scope
186 | } }
187 |
[90/102] Compiling CwlPreconditionTesting CwlDarwinDefinitions.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlPreconditionTesting/CwlDarwinDefinitions.swift:44:59: error: cannot find type 'x86_thread_state64_t' in scope
42 | // #define x86_THREAD_STATE64_COUNT ((mach_msg_type_number_t) \
43 | // ( sizeof (x86_thread_state64_t) / sizeof (int) ))
44 | public let x86_THREAD_STATE64_COUNT = UInt32(MemoryLayout<x86_thread_state64_t>.size / MemoryLayout<Int32>.size)
| `- error: cannot find type 'x86_thread_state64_t' in scope
45 |
46 | public let EXC_TYPES_COUNT = 14
BUILD FAILURE 6.3 macosSpm