Swift Package IndexBuild Information
Successful build of ZippyJSON, reference master (420517), with Swift 6.1 for macOS (SPM) on 7 Sep 2025 23:04:59 UTC.
Swift 6 data race errors: 2
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: 4.67.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/michaeleisel/ZippyJSON.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/michaeleisel/ZippyJSON
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 4205178 Faster protocol conformance (#72)
Cloned https://github.com/michaeleisel/ZippyJSON.git
Revision (git rev-parse @):
420517819cf843ef175c3baf272f81fe52aa467a
SUCCESS checkout https://github.com/michaeleisel/ZippyJSON.git at master
Fetching https://github.com/michaeleisel/JJLISO8601DateFormatter
Fetching https://github.com/michaeleisel/ZippyJSONCFamily
[9/862] Fetching jjliso8601dateformatter
[88/1481] Fetching jjliso8601dateformatter, zippyjsoncfamily
Fetched https://github.com/michaeleisel/JJLISO8601DateFormatter from cache (1.13s)
Fetched https://github.com/michaeleisel/ZippyJSONCFamily from cache (1.13s)
Computing version for https://github.com/michaeleisel/ZippyJSONCFamily
Computed https://github.com/michaeleisel/ZippyJSONCFamily at 1.2.14 (1.75s)
Computing version for https://github.com/michaeleisel/JJLISO8601DateFormatter
Computed https://github.com/michaeleisel/JJLISO8601DateFormatter at 0.1.7 (0.61s)
Creating working copy for https://github.com/michaeleisel/JJLISO8601DateFormatter
Working copy of https://github.com/michaeleisel/JJLISO8601DateFormatter resolved at 0.1.7
Creating working copy for https://github.com/michaeleisel/ZippyJSONCFamily
Working copy of https://github.com/michaeleisel/ZippyJSONCFamily resolved at 1.2.14
========================================
ResolveProductDependencies
========================================
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",
"dependencies": [
{
"identity": "zippyjson",
"name": "ZippyJSON",
"url": "https://github.com/michaeleisel/ZippyJSON.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ZippyJSON",
"dependencies": [
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"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/JJLISO8601DateFormatter",
"dependencies": [
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{
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"url": "https://github.com/michaeleisel/ZippyJSONCFamily",
"version": "1.2.14",
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Fetching https://github.com/michaeleisel/ZippyJSON.git
[1/1472] Fetching zippyjson
Fetched https://github.com/michaeleisel/ZippyJSON.git from cache (1.03s)
Fetching https://github.com/michaeleisel/ZippyJSONCFamily from cache
Fetching https://github.com/michaeleisel/JJLISO8601DateFormatter from cache
Fetched https://github.com/michaeleisel/ZippyJSONCFamily from cache (0.44s)
Fetched https://github.com/michaeleisel/JJLISO8601DateFormatter from cache (0.44s)
Computing version for https://github.com/michaeleisel/ZippyJSONCFamily
Computed https://github.com/michaeleisel/ZippyJSONCFamily at 1.2.14 (0.50s)
Computing version for https://github.com/michaeleisel/JJLISO8601DateFormatter
Computed https://github.com/michaeleisel/JJLISO8601DateFormatter at 0.1.8 (0.03s)
Creating working copy for https://github.com/michaeleisel/ZippyJSONCFamily
Working copy of https://github.com/michaeleisel/ZippyJSONCFamily resolved at 1.2.14
Creating working copy for https://github.com/michaeleisel/ZippyJSON.git
Working copy of https://github.com/michaeleisel/ZippyJSON.git resolved at master (4205178)
Creating working copy for https://github.com/michaeleisel/JJLISO8601DateFormatter
Working copy of https://github.com/michaeleisel/JJLISO8601DateFormatter resolved at 0.1.8
warning: '.resolve-product-dependencies': dependency 'zippyjson' is not used by any target
Found 2 product dependencies
- JJLISO8601DateFormatter
- ZippyJSONCFamily
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/michaeleisel/ZippyJSON.git
https://github.com/michaeleisel/ZippyJSON.git
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"StickyEncodingTests/BinaryEncodingKeyedContainerNegativeTests.swift",
"StickyEncodingTests/BinaryEncodingKeyedContainerTests.swift",
"StickyEncodingTests/BinaryEncodingSingleValueContainerNegativeTests.swift",
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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...
[0/6] Write sources
[1/6] Write swift-version-2F0A5646E1D333AE.txt
[2/6] Compiling JJLISO8601DateFormatter JJLInternal.c
[3/6] Compiling localtime.c
[4/6] Compiling JJLISO8601DateFormatter JJLISO8601DateFormatter.m
[5/6] Compiling ZippyJSONCFamily JSONSerialization.mm
[7/8] Emitting module ZippyJSON
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:18:17: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
16 | typealias Value = JNTDecoderStorage
17 |
18 | fileprivate var _iso8601Formatter: JJLISO8601DateFormatter = {
| |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var '_iso8601Formatter' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
19 | let formatter = JJLISO8601DateFormatter()
20 | formatter.formatOptions = .withInternetDateTime
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:43:24: warning: static property '_zjd_suppressWarnings' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
41 | @available(*, deprecated, message: "This flag is deprecated because full-precision parsing speed is now on par with imprecise, so it will just always use full-precision")
42 | public var zjd_fullPrecisionFloatParsing = true
43 | private static var _zjd_suppressWarnings: Bool = false
| |- warning: static property '_zjd_suppressWarnings' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_zjd_suppressWarnings' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property '_zjd_suppressWarnings' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | public static var zjd_suppressWarnings: Bool {
45 | get {
[8/8] Compiling ZippyJSON ZippyJSONDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:18:17: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
16 | typealias Value = JNTDecoderStorage
17 |
18 | fileprivate var _iso8601Formatter: JJLISO8601DateFormatter = {
| |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make var '_iso8601Formatter' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
19 | let formatter = JJLISO8601DateFormatter()
20 | formatter.formatOptions = .withInternetDateTime
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:43:24: warning: static property '_zjd_suppressWarnings' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
41 | @available(*, deprecated, message: "This flag is deprecated because full-precision parsing speed is now on par with imprecise, so it will just always use full-precision")
42 | public var zjd_fullPrecisionFloatParsing = true
43 | private static var _zjd_suppressWarnings: Bool = false
| |- warning: static property '_zjd_suppressWarnings' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
| |- note: convert '_zjd_suppressWarnings' to a 'let' constant to make 'Sendable' shared state immutable
| |- note: add '@MainActor' to make static property '_zjd_suppressWarnings' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | public static var zjd_suppressWarnings: Bool {
45 | get {
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:114:33: warning: type 'Any' does not conform to the 'Sendable' protocol
112 | appleDecoder.keyDecodingStrategy = ZippyJSONDecoder.convertKeyDecodingStrategy(keyDecodingStrategy)
113 | appleDecoder.nonConformingFloatDecodingStrategy = ZippyJSONDecoder.convertNonConformingFloatDecodingStrategy(nonConformingFloatDecodingStrategy)
114 | appleDecoder.userInfo = userInfo
| `- warning: type 'Any' does not conform to the 'Sendable' protocol
115 | if !ZippyJSONDecoder.zjd_suppressWarnings {
116 | print("[ZippyJSONDecoder] Warning: fell back to using Apple's JSONDecoder. Reason: \(reason ?? ""). This message will only be printed the first time this happens. To suppress this message entirely, for all reasons, use `ZippyJSONDecoder.zjd_suppressWarnings = true")
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:134:71: warning: converting non-sendable function value to '@Sendable (any Decoder) throws -> Date' may introduce data races
132 | switch strategy {
133 | case .custom(let converter):
134 | return Foundation.JSONDecoder.DateDecodingStrategy.custom(converter)
| `- warning: converting non-sendable function value to '@Sendable (any Decoder) throws -> Date' may introduce data races
135 | case .deferredToDate:
136 | return Foundation.JSONDecoder.DateDecodingStrategy.deferredToDate
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:153:71: warning: converting non-sendable function value to '@Sendable (any Decoder) throws -> Data' may introduce data races
151 | return Foundation.JSONDecoder.DataDecodingStrategy.base64
152 | case .custom(let converter):
153 | return Foundation.JSONDecoder.DataDecodingStrategy.custom(converter)
| `- warning: converting non-sendable function value to '@Sendable (any Decoder) throws -> Data' may introduce data races
154 | case .deferredToData:
155 | return Foundation.JSONDecoder.DataDecodingStrategy.deferredToData
/Users/admin/builder/spi-builder-workspace/Sources/ZippyJSON/ZippyJSONDecoder.swift:166:70: warning: converting non-sendable function value to '@Sendable ([any CodingKey]) -> any CodingKey' may introduce data races
164 | return Foundation.JSONDecoder.KeyDecodingStrategy.useDefaultKeys
165 | case .custom(let converter):
166 | return Foundation.JSONDecoder.KeyDecodingStrategy.custom(converter)
| `- warning: converting non-sendable function value to '@Sendable ([any CodingKey]) -> any CodingKey' may introduce data races
167 | }
168 | }
Build complete! (6.62s)
Build complete.
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Done.