Swift Package IndexBuild Information
Successful build of SwiftCustomLogger, reference 1.1.1 (5eea14), with Swift 6.0 for macOS (SPM) on 18 Apr 2025 19:19:57 UTC.
Swift 6 data race errors: 5
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nerzh/swift-custom-logger.git
Reference: 1.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nerzh/swift-custom-logger
* tag 1.1.1 -> FETCH_HEAD
HEAD is now at 5eea143 Merge pull request #1 from makoni/master
Cloned https://github.com/nerzh/swift-custom-logger.git
Revision (git rev-parse @):
5eea143e6674a7a263b96cdf51e4db8bad07820c
SUCCESS checkout https://github.com/nerzh/swift-custom-logger.git at 1.1.1
Fetching https://github.com/apple/swift-log
[1/3832] Fetching swift-log
Fetched https://github.com/apple/swift-log from cache (1.10s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.6.3 (0.41s)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.6.3
========================================
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": "swift-custom-logger",
"name": "SwiftCustomLogger",
"url": "https://github.com/nerzh/swift-custom-logger.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-custom-logger",
"dependencies": [
{
"identity": "swift-log",
"name": "swift-log",
"url": "https://github.com/apple/swift-log",
"version": "1.6.3",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-log",
"dependencies": [
]
}
]
}
]
}
Fetching https://github.com/nerzh/swift-custom-logger.git
[1/37] Fetching swift-custom-logger
Fetched https://github.com/nerzh/swift-custom-logger.git from cache (0.61s)
Fetching https://github.com/apple/swift-log from cache
Fetched https://github.com/apple/swift-log from cache (0.54s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.6.3 (0.03s)
Creating working copy for https://github.com/nerzh/swift-custom-logger.git
Working copy of https://github.com/nerzh/swift-custom-logger.git resolved at 1.1.1 (5eea143)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.6.3
warning: '.resolve-product-dependencies': dependency 'swift-custom-logger' is not used by any target
Found 1 product dependencies
- swift-log
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.0
Building package at path: $PWD
https://github.com/nerzh/swift-custom-logger.git
https://github.com/nerzh/swift-custom-logger.git
{
"dependencies" : [
{
"identity" : "swift-log",
"requirement" : {
"range" : [
{
"lower_bound" : "1.5.4",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-log"
}
],
"manifest_display_name" : "SwiftCustomLogger",
"name" : "SwiftCustomLogger",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "SwiftCustomLogger",
"targets" : [
"SwiftCustomLogger"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftCustomLogger",
"module_type" : "SwiftTarget",
"name" : "SwiftCustomLogger",
"path" : "Sources/SwiftCustomLogger",
"product_dependencies" : [
"Logging"
],
"product_memberships" : [
"SwiftCustomLogger"
],
"sources" : [
"BasicFormatter.swift",
"CustomHandler.swift",
"LogFormatter.swift",
"Printer.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.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...
[0/3] Write sources
[2/3] Write swift-version-5BDAB9E9C0126B9D.txt
[4/8] Compiling Logging MetadataProvider.swift
[5/8] Emitting module Logging
[6/8] Compiling Logging Locks.swift
[7/8] Compiling Logging Logging.swift
[8/8] Compiling Logging LogHandler.swift
[9/13] Emitting module SwiftCustomLogger
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/BasicFormatter.swift:56:23: warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
2 | import Logging
3 |
4 | public struct BasicFormatter: LogFormatter {
| `- note: consider making struct 'BasicFormatter' conform to the 'Sendable' protocol
5 |
6 | public let timestampFormatter: DateFormatter
:
54 | /// [apple/swift-log](https://github.com/apple/swift-log)'s log format
55 | /// `2024-04-12T10:00:07-0310 error: Test error message`
56 | public static let appleDefault = BasicFormatter(
| |- warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'appleDefault' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
57 | [
58 | .timestamp,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:6:16: warning: stored property 'formatter' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any LogFormatter'; this is an error in the Swift 6 language mode
4 | public struct CustomHandler: LogHandler {
5 |
6 | public let formatter: LogFormatter
| `- warning: stored property 'formatter' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any LogFormatter'; this is an error in the Swift 6 language mode
7 | public let printer: Printer
8 | public var logLevel: Logger.Level = .info
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/LogFormatter.swift:28:17: note: protocol 'LogFormatter' does not conform to the 'Sendable' protocol
26 | }
27 |
28 | public protocol LogFormatter {
| `- note: protocol 'LogFormatter' does not conform to the 'Sendable' protocol
29 | var timestampFormatter: DateFormatter { get }
30 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:7:16: warning: stored property 'printer' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any Printer'; this is an error in the Swift 6 language mode
5 |
6 | public let formatter: LogFormatter
7 | public let printer: Printer
| `- warning: stored property 'printer' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any Printer'; this is an error in the Swift 6 language mode
8 | public var logLevel: Logger.Level = .info
9 | private var prettyMetadata: String?
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:23:17: note: protocol 'Printer' does not conform to the 'Sendable' protocol
21 | #endif
22 |
23 | public protocol Printer {
| `- note: protocol 'Printer' does not conform to the 'Sendable' protocol
24 | func handle(_ formattedLogLine: String)
25 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:4:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
2 | import Logging
3 |
4 | public struct CustomHandler: LogHandler {
| `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
5 |
6 | public let formatter: LogFormatter
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 | /// - function: The function the log line was emitted from.
134 | /// - line: The line the log message was emitted from.
135 | func log(
| `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 | level: Logger.Level,
137 | message: Logger.Message,
:
207 | extension LogHandler {
208 | @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 | public func log(
| `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 | level: Logger.Level,
211 | message: Logger.Message,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:62:16: warning: static property 'stderr' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
47 | }
48 |
49 | private struct OutputStream: TextOutputStream {
| `- note: consider making struct 'OutputStream' conform to the 'Sendable' protocol
50 |
51 | public let file: UnsafeMutablePointer<FILE>
:
60 |
61 | #if canImport(Darwin.C)
62 | static let stderr = OutputStream(file: Darwin.stderr)
| |- warning: static property 'stderr' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'stderr' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
63 | static let stdout = OutputStream(file: Darwin.stdout)
64 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:63:16: warning: static property 'stdout' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
47 | }
48 |
49 | private struct OutputStream: TextOutputStream {
| `- note: consider making struct 'OutputStream' conform to the 'Sendable' protocol
50 |
51 | public let file: UnsafeMutablePointer<FILE>
:
61 | #if canImport(Darwin.C)
62 | static let stderr = OutputStream(file: Darwin.stderr)
63 | static let stdout = OutputStream(file: Darwin.stdout)
| |- warning: static property 'stdout' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'stdout' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 | #elseif canImport(Android)
[10/13] Compiling SwiftCustomLogger LogFormatter.swift
[11/13] Compiling SwiftCustomLogger Printer.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:62:16: warning: static property 'stderr' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
47 | }
48 |
49 | private struct OutputStream: TextOutputStream {
| `- note: consider making struct 'OutputStream' conform to the 'Sendable' protocol
50 |
51 | public let file: UnsafeMutablePointer<FILE>
:
60 |
61 | #if canImport(Darwin.C)
62 | static let stderr = OutputStream(file: Darwin.stderr)
| |- warning: static property 'stderr' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'stderr' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
63 | static let stdout = OutputStream(file: Darwin.stdout)
64 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:63:16: warning: static property 'stdout' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
47 | }
48 |
49 | private struct OutputStream: TextOutputStream {
| `- note: consider making struct 'OutputStream' conform to the 'Sendable' protocol
50 |
51 | public let file: UnsafeMutablePointer<FILE>
:
61 | #if canImport(Darwin.C)
62 | static let stderr = OutputStream(file: Darwin.stderr)
63 | static let stdout = OutputStream(file: Darwin.stdout)
| |- warning: static property 'stdout' is not concurrency-safe because non-'Sendable' type 'OutputStream' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'stdout' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 | #elseif canImport(Android)
[12/13] Compiling SwiftCustomLogger CustomHandler.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/BasicFormatter.swift:56:23: warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
2 | import Logging
3 |
4 | public struct BasicFormatter: LogFormatter {
| `- note: consider making struct 'BasicFormatter' conform to the 'Sendable' protocol
5 |
6 | public let timestampFormatter: DateFormatter
:
54 | /// [apple/swift-log](https://github.com/apple/swift-log)'s log format
55 | /// `2024-04-12T10:00:07-0310 error: Test error message`
56 | public static let appleDefault = BasicFormatter(
| |- warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'appleDefault' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
57 | [
58 | .timestamp,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:6:16: warning: stored property 'formatter' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any LogFormatter'; this is an error in the Swift 6 language mode
4 | public struct CustomHandler: LogHandler {
5 |
6 | public let formatter: LogFormatter
| `- warning: stored property 'formatter' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any LogFormatter'; this is an error in the Swift 6 language mode
7 | public let printer: Printer
8 | public var logLevel: Logger.Level = .info
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/LogFormatter.swift:28:17: note: protocol 'LogFormatter' does not conform to the 'Sendable' protocol
26 | }
27 |
28 | public protocol LogFormatter {
| `- note: protocol 'LogFormatter' does not conform to the 'Sendable' protocol
29 | var timestampFormatter: DateFormatter { get }
30 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:7:16: warning: stored property 'printer' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any Printer'; this is an error in the Swift 6 language mode
5 |
6 | public let formatter: LogFormatter
7 | public let printer: Printer
| `- warning: stored property 'printer' of 'Sendable'-conforming struct 'CustomHandler' has non-sendable type 'any Printer'; this is an error in the Swift 6 language mode
8 | public var logLevel: Logger.Level = .info
9 | private var prettyMetadata: String?
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/Printer.swift:23:17: note: protocol 'Printer' does not conform to the 'Sendable' protocol
21 | #endif
22 |
23 | public protocol Printer {
| `- note: protocol 'Printer' does not conform to the 'Sendable' protocol
24 | func handle(_ formattedLogLine: String)
25 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/CustomHandler.swift:4:15: warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
2 | import Logging
3 |
4 | public struct CustomHandler: LogHandler {
| `- warning: deprecated default implementation is used to satisfy instance method 'log(level:message:metadata:source:file:function:line:)' required by protocol 'LogHandler': You should implement this method instead of using the default implementation
5 |
6 | public let formatter: LogFormatter
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-log/Sources/Logging/LogHandler.swift:209:17: note: 'log(level:message:metadata:source:file:function:line:)' declared here
133 | /// - function: The function the log line was emitted from.
134 | /// - line: The line the log message was emitted from.
135 | func log(
| `- note: requirement 'log(level:message:metadata:source:file:function:line:)' declared here
136 | level: Logger.Level,
137 | message: Logger.Message,
:
207 | extension LogHandler {
208 | @available(*, deprecated, message: "You should implement this method instead of using the default implementation")
209 | public func log(
| `- note: 'log(level:message:metadata:source:file:function:line:)' declared here
210 | level: Logger.Level,
211 | message: Logger.Message,
[13/13] Compiling SwiftCustomLogger BasicFormatter.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftCustomLogger/BasicFormatter.swift:56:23: warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
2 | import Logging
3 |
4 | public struct BasicFormatter: LogFormatter {
| `- note: consider making struct 'BasicFormatter' conform to the 'Sendable' protocol
5 |
6 | public let timestampFormatter: DateFormatter
:
54 | /// [apple/swift-log](https://github.com/apple/swift-log)'s log format
55 | /// `2024-04-12T10:00:07-0310 error: Test error message`
56 | public static let appleDefault = BasicFormatter(
| |- warning: static property 'appleDefault' is not concurrency-safe because non-'Sendable' type 'BasicFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: annotate 'appleDefault' with '@MainActor' if property should only be accessed from the main actor
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
57 | [
58 | .timestamp,
Build complete! (7.20s)
Build complete.
{
"dependencies" : [
{
"identity" : "swift-log",
"requirement" : {
"range" : [
{
"lower_bound" : "1.5.4",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-log"
}
],
"manifest_display_name" : "SwiftCustomLogger",
"name" : "SwiftCustomLogger",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "SwiftCustomLogger",
"targets" : [
"SwiftCustomLogger"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftCustomLogger",
"module_type" : "SwiftTarget",
"name" : "SwiftCustomLogger",
"path" : "Sources/SwiftCustomLogger",
"product_dependencies" : [
"Logging"
],
"product_memberships" : [
"SwiftCustomLogger"
],
"sources" : [
"BasicFormatter.swift",
"CustomHandler.swift",
"LogFormatter.swift",
"Printer.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
Done.