Swift Package IndexBuild Information
Successful build of Checksum, reference v1.0.2 (9dde3d), with Swift 6.1 for macOS (SPM) on 28 Apr 2026 02:55:56 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCapturesBuild Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rnine/Checksum.git
Reference: v1.0.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/rnine/Checksum
* tag v1.0.2 -> FETCH_HEAD
HEAD is now at 9dde3d1 Changing dispatch queue's QOS from background to user initiated. Removing unneeded dispatch queue in HTTPSource. Initializer and reads are already dispatched from on a dedicated queue.
Cloned https://github.com/rnine/Checksum.git
Revision (git rev-parse @):
9dde3d1d898a5074608a1420791ef0a80c2399f2
SUCCESS checkout https://github.com/rnine/Checksum.git at v1.0.2
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/rnine/Checksum.git
https://github.com/rnine/Checksum.git
{
"dependencies" : [
],
"manifest_display_name" : "Checksum",
"name" : "Checksum",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.11"
},
{
"name" : "ios",
"version" : "9.0"
},
{
"name" : "tvos",
"version" : "9.0"
},
{
"name" : "watchos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "Checksum",
"targets" : [
"Checksum"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "Checksum",
"module_type" : "SwiftTarget",
"name" : "Checksum",
"path" : "Source",
"product_memberships" : [
"Checksum"
],
"sources" : [
"Internal/CCWrapper.swift",
"Internal/Extensions/Data+Source.swift",
"Internal/Extensions/HTTPResponse+ContentRange.swift",
"Internal/Extensions/String+Source.swift",
"Internal/Extensions/URL+Source.swift",
"Internal/Protocols/Source.swift",
"Internal/Protocols/Sourceable.swift",
"Internal/Sources/DataSource.swift",
"Internal/Sources/FileSource.swift",
"Internal/Sources/HTTPSource.swift",
"Public/Enums/ChecksumError.swift",
"Public/Enums/Chunksize.swift",
"Public/Enums/DigestAlgorithm.swift",
"Public/Extensions.swift",
"Public/Protocols/Checksumable.swift"
],
"type" : "library"
}
],
"tools_version" : "5.1"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/17] Compiling Checksum FileSource.swift
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:76:21: warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
74 |
75 | let task = urlSession.dataTask(with: request) { data, response, _ in
76 | defer { self.semaphore.signal() }
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
77 |
78 | guard let httpResponse = response as? HTTPURLResponse,
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:76:21: warning: capture of 'self' with non-sendable type 'HTTPSource' in an isolated local function; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
74 |
75 | let task = urlSession.dataTask(with: request) { data, response, _ in
76 | defer { self.semaphore.signal() }
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in an isolated local function; this is an error in the Swift 6 language mode
77 |
78 | guard let httpResponse = response as? HTTPURLResponse,
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:83:13: warning: mutation of captured var 'readData' in concurrently-executing code
81 | let data = data else { return }
82 |
83 | readData = data
| `- warning: mutation of captured var 'readData' in concurrently-executing code
84 |
85 | if let size = contentRange.size {
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:119:13: warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
117 | }
118 |
119 | self.semaphore.signal()
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
120 | }
121 |
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:116:17: warning: mutation of captured var 'size' in concurrently-executing code
114 | let task = urlSession.dataTask(with: request) { _, response, error in
115 | if error == nil, let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 {
116 | size = Int(httpResponse.expectedContentLength)
| `- warning: mutation of captured var 'size' in concurrently-executing code
117 | }
118 |
[4/17] Compiling Checksum HTTPSource.swift
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:76:21: warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
74 |
75 | let task = urlSession.dataTask(with: request) { data, response, _ in
76 | defer { self.semaphore.signal() }
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
77 |
78 | guard let httpResponse = response as? HTTPURLResponse,
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:76:21: warning: capture of 'self' with non-sendable type 'HTTPSource' in an isolated local function; this is an error in the Swift 6 language mode
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
74 |
75 | let task = urlSession.dataTask(with: request) { data, response, _ in
76 | defer { self.semaphore.signal() }
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in an isolated local function; this is an error in the Swift 6 language mode
77 |
78 | guard let httpResponse = response as? HTTPURLResponse,
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:83:13: warning: mutation of captured var 'readData' in concurrently-executing code
81 | let data = data else { return }
82 |
83 | readData = data
| `- warning: mutation of captured var 'readData' in concurrently-executing code
84 |
85 | if let size = contentRange.size {
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:119:13: warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
9 | import Foundation
10 |
11 | class HTTPSource: InstantiableSource {
| `- note: class 'HTTPSource' does not conform to the 'Sendable' protocol
12 | typealias Provider = URL
13 |
:
117 | }
118 |
119 | self.semaphore.signal()
| `- warning: capture of 'self' with non-sendable type 'HTTPSource' in a '@Sendable' closure
120 | }
121 |
/Users/admin/builder/spi-builder-workspace/Source/Internal/Sources/HTTPSource.swift:116:17: warning: mutation of captured var 'size' in concurrently-executing code
114 | let task = urlSession.dataTask(with: request) { _, response, error in
115 | if error == nil, let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 {
116 | size = Int(httpResponse.expectedContentLength)
| `- warning: mutation of captured var 'size' in concurrently-executing code
117 | }
118 |
[5/18] Compiling Checksum Sourceable.swift
[6/18] Compiling Checksum DataSource.swift
[7/18] Compiling Checksum URL+Source.swift
[8/18] Compiling Checksum Source.swift
[9/18] Compiling Checksum CCWrapper.swift
[10/18] Compiling Checksum Data+Source.swift
[11/18] Emitting module Checksum
[12/18] Compiling Checksum HTTPResponse+ContentRange.swift
[13/18] Compiling Checksum String+Source.swift
[14/18] Compiling Checksum ChecksumError.swift
[15/18] Compiling Checksum Chunksize.swift
[16/18] Compiling Checksum Extensions.swift
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:55:33: warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure
53 | completion: @escaping CompletionHandler) {
54 | DispatchQueue.global(qos: .userInitiated).async {
55 | guard let source = (self as? Sourceable)?.source else {
| `- warning: capture of 'self' with non-sendable type 'Self' in a '@Sendable' closure
56 | queue.async {
57 | completion(.failure(.unusableSource))
Checksum.Checksumable.Self:2:1: note: consider making generic parameter 'Self' conform to the 'Sendable' protocol
1 | protocol Checksumable {
2 | Self : Checksum.Checksumable}
| `- note: consider making generic parameter 'Self' conform to the 'Sendable' protocol
3 |
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:57:21: warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
55 | guard let source = (self as? Sourceable)?.source else {
56 | queue.async {
57 | completion(.failure(.unusableSource))
| |- warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
58 | }
59 |
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:63:43: warning: capture of 'algorithm' with non-sendable type 'DigestAlgorithm' in a '@Sendable' closure
61 | }
62 |
63 | let cc = CCWrapper(algorithm: algorithm)
| `- warning: capture of 'algorithm' with non-sendable type 'DigestAlgorithm' in a '@Sendable' closure
64 | let overallProgress = Progress()
65 |
/Users/admin/builder/spi-builder-workspace/Source/Public/Enums/DigestAlgorithm.swift:13:13: note: consider making enum 'DigestAlgorithm' conform to the 'Sendable' protocol
11 |
12 | /// Represents a type of digest algorithm.
13 | public enum DigestAlgorithm {
| `- note: consider making enum 'DigestAlgorithm' conform to the 'Sendable' protocol
14 | /// MD5 algorithm.
15 | case md5
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:67:54: warning: capture of 'chunkSize' with non-sendable type 'Chunksize' in a '@Sendable' closure
65 |
66 | while !source.eof() {
67 | guard let data = source.read(amount: chunkSize.bytes) else { break }
| `- warning: capture of 'chunkSize' with non-sendable type 'Chunksize' in a '@Sendable' closure
68 |
69 | overallProgress.totalUnitCount = Int64(source.size)
/Users/admin/builder/spi-builder-workspace/Source/Public/Enums/Chunksize.swift:12:13: note: consider making enum 'Chunksize' conform to the 'Sendable' protocol
10 |
11 | /// Represents a size to be used for chunk processing.
12 | public enum Chunksize {
| `- note: consider making enum 'Chunksize' conform to the 'Sendable' protocol
13 | /// Tiny (16kb)
14 | case tiny
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:77:39: warning: capture of 'progress' with non-sendable type 'ProgressHandler?' (aka 'Optional<(Progress) -> ()>') in a '@Sendable' closure
75 | overallProgress.completedUnitCount += Int64(data.count)
76 |
77 | if let progress = progress {
| |- warning: capture of 'progress' with non-sendable type 'ProgressHandler?' (aka 'Optional<(Progress) -> ()>') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
78 | queue.async {
79 | progress(overallProgress)
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:57:21: warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
55 | guard let source = (self as? Sourceable)?.source else {
56 | queue.async {
57 | completion(.failure(.unusableSource))
| |- warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
58 | }
59 |
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:77:39: warning: capture of 'progress' with non-sendable type 'ProgressHandler?' (aka 'Optional<(Progress) -> ()>') in an isolated closure; this is an error in the Swift 6 language mode
75 | overallProgress.completedUnitCount += Int64(data.count)
76 |
77 | if let progress = progress {
| |- warning: capture of 'progress' with non-sendable type 'ProgressHandler?' (aka 'Optional<(Progress) -> ()>') in an isolated closure; this is an error in the Swift 6 language mode
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
78 | queue.async {
79 | progress(overallProgress)
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:79:29: warning: capture of 'progress' with non-sendable type 'ProgressHandler' (aka '(Progress) -> ()') in a '@Sendable' closure
77 | if let progress = progress {
78 | queue.async {
79 | progress(overallProgress)
| |- warning: capture of 'progress' with non-sendable type 'ProgressHandler' (aka '(Progress) -> ()') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
80 | }
81 | }
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:88:35: warning: capture of 'cc' with non-sendable type 'CCWrapper' in a '@Sendable' closure
86 |
87 | queue.async {
88 | if let checksum = cc.hexString() {
| `- warning: capture of 'cc' with non-sendable type 'CCWrapper' in a '@Sendable' closure
89 | completion(.success(checksum))
90 | } else {
/Users/admin/builder/spi-builder-workspace/Source/Internal/CCWrapper.swift:12:22: note: class 'CCWrapper' does not conform to the 'Sendable' protocol
10 | import Foundation
11 |
12 | internal final class CCWrapper {
| `- note: class 'CCWrapper' does not conform to the 'Sendable' protocol
13 | private typealias CC_XXX_Update = (UnsafeRawPointer, CC_LONG) -> Void
14 | private typealias CC_XXX_Final = (UnsafeMutablePointer<UInt8>) -> Void
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:89:21: warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
87 | queue.async {
88 | if let checksum = cc.hexString() {
89 | completion(.success(checksum))
| |- warning: capture of 'completion' with non-sendable type 'CompletionHandler' (aka '(Result<String, ChecksumError>) -> ()') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
90 | } else {
91 | completion(.failure(.unknown))
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:156:25: warning: capture of 'completion' with non-sendable type 'MultipleCompletionHandler' (aka '(Result<Array<(checksumable: any Checksumable, checksum: Optional<String>)>, ChecksumError>) -> ()') in a '@Sendable' closure
154 | if checksums.count == self.count {
155 | queue.async {
156 | completion(.success(checksums))
| |- warning: capture of 'completion' with non-sendable type 'MultipleCompletionHandler' (aka '(Result<Array<(checksumable: any Checksumable, checksum: Optional<String>)>, ChecksumError>) -> ()') in a '@Sendable' closure
| `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
157 | }
158 | }
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:156:45: warning: capture of 'checksums' with non-sendable type '[ChecksumResult]' (aka 'Array<(checksumable: any Checksumable, checksum: Optional<String>)>') in a '@Sendable' closure
154 | if checksums.count == self.count {
155 | queue.async {
156 | completion(.success(checksums))
| `- warning: capture of 'checksums' with non-sendable type '[ChecksumResult]' (aka 'Array<(checksumable: any Checksumable, checksum: Optional<String>)>') in a '@Sendable' closure
157 | }
158 | }
/Users/admin/builder/spi-builder-workspace/Source/Public/Protocols/Checksumable.swift:12:17: note: protocol 'Checksumable' does not conform to the 'Sendable' protocol
10 |
11 | /// The protocol any subject whose checksum may be calculated must conform to.
12 | public protocol Checksumable {
| `- note: protocol 'Checksumable' does not conform to the 'Sendable' protocol
13 | /// :nodoc:
14 | var hashValue: Int { get }
/Users/admin/builder/spi-builder-workspace/Source/Public/Extensions.swift:156:45: warning: reference to captured var 'checksums' in concurrently-executing code
154 | if checksums.count == self.count {
155 | queue.async {
156 | completion(.success(checksums))
| `- warning: reference to captured var 'checksums' in concurrently-executing code
157 | }
158 | }
[17/18] Compiling Checksum DigestAlgorithm.swift
[18/18] Compiling Checksum Checksumable.swift
Build complete! (4.54s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "Checksum",
"name" : "Checksum",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.11"
},
{
"name" : "ios",
"version" : "9.0"
},
{
"name" : "tvos",
"version" : "9.0"
},
{
"name" : "watchos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "Checksum",
"targets" : [
"Checksum"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "Checksum",
"module_type" : "SwiftTarget",
"name" : "Checksum",
"path" : "Source",
"product_memberships" : [
"Checksum"
],
"sources" : [
"Internal/CCWrapper.swift",
"Internal/Extensions/Data+Source.swift",
"Internal/Extensions/HTTPResponse+ContentRange.swift",
"Internal/Extensions/String+Source.swift",
"Internal/Extensions/URL+Source.swift",
"Internal/Protocols/Source.swift",
"Internal/Protocols/Sourceable.swift",
"Internal/Sources/DataSource.swift",
"Internal/Sources/FileSource.swift",
"Internal/Sources/HTTPSource.swift",
"Public/Enums/ChecksumError.swift",
"Public/Enums/Chunksize.swift",
"Public/Enums/DigestAlgorithm.swift",
"Public/Extensions.swift",
"Public/Protocols/Checksumable.swift"
],
"type" : "library"
}
],
"tools_version" : "5.1"
}
Done.