The Swift Package Index logo.Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build SwiftSlash, reference 4.0.0 (8400ad), with Swift 6.2 (beta) for macOS (SPM) on 24 Jun 2025 00:19:12 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tannerdsilva/SwiftSlash.git
Reference: 4.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tannerdsilva/SwiftSlash
 * tag               4.0.0      -> FETCH_HEAD
HEAD is now at 8400ad9 v4.0.0 release - a new era
Cloned https://github.com/tannerdsilva/SwiftSlash.git
Revision (git rev-parse @):
8400ad9f72c4e91490b40048ac9f8475be562207
SUCCESS checkout https://github.com/tannerdsilva/SwiftSlash.git at 4.0.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/tannerdsilva/SwiftSlash.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64
Building for debugging...
[0/16] Write sources
[8/16] Write swift-version-1EA4D86E10B52AF.txt
[10/20] Emitting module SwiftSlashContained
[11/20] Emitting module SwiftSlashGlobalSerialization
[11/20] Compiling __cswiftslash_types __cswiftslash_types.c
[13/20] Compiling SwiftSlashContained Contained.swift
[14/20] Compiling SwiftSlashGlobalSerialization GlobalSerialization.swift
[14/20] Compiling __cswiftslash_identified_list __cswiftslash_identified_list.c
[15/20] Compiling __cswiftslash_fifo __cswiftslash_fifo.c
[16/22] Compiling __cswiftslash_future __cswiftslash_future.c
[17/27] Compiling __cswiftslash_threads __cswiftslash_threads.c
[18/27] Compiling __cswiftslash_eventtrigger __cswiftslash_eventtrigger.c
[19/27] Compiling __cswiftslash_posix_helpers __cswiftslash_posix_helpers.c
error: emit-module command failed with exit code 1 (use -v to see invocation)
[21/32] Emitting module SwiftSlashFIFO
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSlashFIFO/FIFO.swift:43:34: error: cannot find type 'size_t' in scope
 41 | 	/// - parameters:
 42 | 	///		- maximumElementCount: the maximum number of elements that may be held in the FIFO at any given time.
 43 | 	public init(maximumElementCount:size_t) {
    |                                  `- error: cannot find type 'size_t' in scope
 44 | 		// memory setup
 45 | 		let newPointer = __cswiftslash_fifo_init(true)
[22/32] Compiling SwiftSlashFIFO FIFO.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftSlashFIFO/FIFO.swift:43:34: error: cannot find type 'size_t' in scope
 41 | 	/// - parameters:
 42 | 	///		- maximumElementCount: the maximum number of elements that may be held in the FIFO at any given time.
 43 | 	public init(maximumElementCount:size_t) {
    |                                  `- error: cannot find type 'size_t' in scope
 44 | 		// memory setup
 45 | 		let newPointer = __cswiftslash_fifo_init(true)
BUILD FAILURE 6.2 macosSpm