Swift Package IndexBuild Information
Successful build of sstv, reference main (6c3910), with Swift 6.1 for Linux on 19 Apr 2026 09:22:28 UTC.
Swift 6 data race errors: 1
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/kevinnz/SSTV-MEL.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/kevinnz/SSTV-MEL
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 6c3910f Merge pull request #33 from kevinnz/decode-improvement
Cloned https://github.com/kevinnz/SSTV-MEL.git
Revision (git rev-parse @):
6c3910f3455b4cf70ebda2b5adff9e6b2de86c95
SUCCESS checkout https://github.com/kevinnz/SSTV-MEL.git at main
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/kevinnz/SSTV-MEL.git
https://github.com/kevinnz/SSTV-MEL.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:a7bfd71e9384436264431030299dc8a2d42d0664a168cfa1a5dd84c9bc592ccf
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
Fetching https://github.com/apple/swift-argument-parser.git
[1/17529] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser.git from cache (0.93s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.7.1 (2.10s)
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.7.1
[1/1] Compiling plugin GenerateManual
[2/2] Compiling plugin GenerateDoccReference
Building for debugging...
[2/13] Write sources
[6/13] Write swift-version-24593BA9C3E375BF.txt
[8/32] Compiling ArgumentParserToolInfo ToolInfo.swift
[9/32] Emitting module ArgumentParserToolInfo
[11/33] Compiling SSTVCore PD120Mode.swift
[12/33] Compiling SSTVCore PD180Mode.swift
[13/33] Compiling SSTVCore PDModeShared.swift
[14/33] Compiling SSTVCore Robot36Mode.swift
[15/35] Compiling SSTVCore SSTVDecoderCore.swift
[16/35] Compiling SSTVCore SSTVMode.swift
[17/35] Compiling SSTVCore DecoderDelegate.swift
/host/spi-builder-workspace/Sources/SSTVCore/SSTV/DecodingOptions.swift:170:23: warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
40 | /// let buffer = try decoder.decode(audio: audio, options: options)
41 | /// ```
42 | public struct DecodingOptions {
| `- note: consider making struct 'DecodingOptions' conform to the 'Sendable' protocol
43 |
44 | // MARK: - Limits
:
168 |
169 | /// Default options with no adjustments
170 | public static let `default` = DecodingOptions()
| |- warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'default' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
171 |
172 | // MARK: - Computed Properties
[18/35] Compiling SSTVCore DecodingOptions.swift
/host/spi-builder-workspace/Sources/SSTVCore/SSTV/DecodingOptions.swift:170:23: warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
40 | /// let buffer = try decoder.decode(audio: audio, options: options)
41 | /// ```
42 | public struct DecodingOptions {
| `- note: consider making struct 'DecodingOptions' conform to the 'Sendable' protocol
43 |
44 | // MARK: - Limits
:
168 |
169 | /// Default options with no adjustments
170 | public static let `default` = DecodingOptions()
| |- warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'default' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
171 |
172 | // MARK: - Computed Properties
[19/35] Compiling SSTVCore DecodingProgress.swift
[20/35] Compiling SSTVCore SSTVDecoder.swift
[21/35] Compiling SSTVCore WAVReader.swift
[22/35] Compiling SSTVCore FMDemodulator.swift
[23/35] Compiling SSTVCore Goertzel.swift
[24/35] Compiling SSTVCore ImageBuffer.swift
[25/35] Compiling SSTVCore ImageWriter.swift
[26/35] Compiling SSTVCore ModeParameters.swift
[27/35] Emitting module SSTVCore
/host/spi-builder-workspace/Sources/SSTVCore/SSTV/DecodingOptions.swift:170:23: warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
40 | /// let buffer = try decoder.decode(audio: audio, options: options)
41 | /// ```
42 | public struct DecodingOptions {
| `- note: consider making struct 'DecodingOptions' conform to the 'Sendable' protocol
43 |
44 | // MARK: - Limits
:
168 |
169 | /// Default options with no adjustments
170 | public static let `default` = DecodingOptions()
| |- warning: static property 'default' is not concurrency-safe because non-'Sendable' type 'DecodingOptions' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'default' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
171 |
172 | // MARK: - Computed Properties
[28/35] Compiling SSTVCore VISDetector.swift
[29/35] Compiling SSTVCore ImageComparison.swift
[30/36] Wrapping AST for SSTVCore for debugging
[31/36] Wrapping AST for ArgumentParserToolInfo for debugging
[33/82] Emitting module ArgumentParser
[34/88] Compiling ArgumentParser ParentCommand.swift
[35/88] Compiling ArgumentParser AsyncParsableCommand.swift
[36/88] Compiling ArgumentParser CommandConfiguration.swift
[37/88] Compiling ArgumentParser CommandGroup.swift
[38/88] Compiling ArgumentParser EnumerableFlag.swift
[39/88] Compiling ArgumentParser ExpressibleByArgument.swift
[40/88] Compiling ArgumentParser ParsableArguments.swift
[41/88] Compiling ArgumentParser Foundation.swift
[42/88] Compiling ArgumentParser Mutex.swift
[43/88] Compiling ArgumentParser Platform.swift
[44/88] Compiling ArgumentParser SequenceExtensions.swift
[45/88] Compiling ArgumentParser StringExtensions.swift
[46/88] Compiling ArgumentParser SwiftExtensions.swift
[47/88] Compiling ArgumentParser DumpHelpGenerator.swift
[48/88] Compiling ArgumentParser HelpCommand.swift
[49/88] Compiling ArgumentParser HelpGenerator.swift
[50/88] Compiling ArgumentParser MessageInfo.swift
[51/88] Compiling ArgumentParser UsageGenerator.swift
[52/88] Compiling ArgumentParser CollectionExtensions.swift
[53/88] Compiling ArgumentParser InputOrigin.swift
[54/88] Compiling ArgumentParser Name.swift
[55/88] Compiling ArgumentParser Parsed.swift
[56/88] Compiling ArgumentParser ParsedValues.swift
[57/88] Compiling ArgumentParser ParserError.swift
[58/88] Compiling ArgumentParser SplitArguments.swift
[59/88] Compiling ArgumentParser Tree.swift
[60/88] Compiling ArgumentParser CodingKeyValidator.swift
[61/88] Compiling ArgumentParser NonsenseFlagsValidator.swift
[62/88] Compiling ArgumentParser ParsableArgumentsValidation.swift
[63/88] Compiling ArgumentParser PositionalArgumentsValidator.swift
[64/88] Compiling ArgumentParser UniqueNamesValidator.swift
[65/88] Compiling ArgumentParser ArgumentVisibility.swift
[66/88] Compiling ArgumentParser CompletionKind.swift
[67/88] Compiling ArgumentParser Errors.swift
[68/88] Compiling ArgumentParser Flag.swift
[69/88] Compiling ArgumentParser NameSpecification.swift
[70/88] Compiling ArgumentParser Option.swift
[71/88] Compiling ArgumentParser OptionGroup.swift
[72/88] Compiling ArgumentParser BashCompletionsGenerator.swift
[73/88] Compiling ArgumentParser CompletionsGenerator.swift
[74/88] Compiling ArgumentParser FishCompletionsGenerator.swift
[75/88] Compiling ArgumentParser ZshCompletionsGenerator.swift
[76/88] Compiling ArgumentParser Argument.swift
[77/88] Compiling ArgumentParser ArgumentDiscussion.swift
[78/88] Compiling ArgumentParser ArgumentHelp.swift
[79/88] Compiling ArgumentParser ParsableCommand.swift
[80/88] Compiling ArgumentParser ArgumentDecoder.swift
[81/88] Compiling ArgumentParser ArgumentDefinition.swift
[82/88] Compiling ArgumentParser ArgumentSet.swift
[83/88] Compiling ArgumentParser CommandParser.swift
[84/88] Compiling ArgumentParser InputKey.swift
[85/89] Wrapping AST for ArgumentParser for debugging
[87/96] Compiling sstv SSTVCommand.swift
[88/96] Compiling sstv ExitCodes.swift
[89/96] Compiling sstv InfoCommand.swift
/host/spi-builder-workspace/Sources/sstv/InfoCommand.swift:120:33: warning: result of call to 'createFile(atPath:contents:attributes:)' is unused
118 | message: "No data received on stdin.")
119 | }
120 | FileManager.default.createFile(atPath: tempPath, contents: stdinData)
| `- warning: result of call to 'createFile(atPath:contents:attributes:)' is unused
121 | return try WAVReader.read(path: tempPath)
122 | }
[90/96] Emitting module sstv
[91/96] Compiling sstv CLIOutput.swift
[92/96] Compiling sstv CLIDecoderDelegate.swift
/host/spi-builder-workspace/Sources/sstv/CLIDecoderDelegate.swift:101:16: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
99 |
100 | writeToStderr(line)
101 | fflush(stderr)
| `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
102 | }
103 | }
/usr/include/stdio.h:145:14: note: var declared here
143 | extern FILE *stdin; /* Standard input stream. */
144 | extern FILE *stdout; /* Standard output stream. */
145 | extern FILE *stderr; /* Standard error output stream. */
| `- note: var declared here
146 | /* C89/C99 say they're macros. Make them happy. */
147 | #define stdin stdin
[93/96] Compiling sstv DecodeCommand.swift
/host/spi-builder-workspace/Sources/sstv/DecodeCommand.swift:294:33: warning: result of call to 'createFile(atPath:contents:attributes:)' is unused
292 | message: "No data received on stdin.")
293 | }
294 | FileManager.default.createFile(atPath: tempPath, contents: stdinData)
| `- warning: result of call to 'createFile(atPath:contents:attributes:)' is unused
295 | return try WAVReader.read(path: tempPath)
296 | }
[94/97] Wrapping AST for sstv for debugging
[95/97] Write Objects.LinkFileList
[96/97] Linking sstv
Build complete! (36.66s)
Build complete.
{
"dependencies" : [
{
"identity" : "swift-argument-parser",
"requirement" : {
"range" : [
{
"lower_bound" : "1.3.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-argument-parser.git"
}
],
"manifest_display_name" : "sstv",
"name" : "sstv",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "13.0"
},
{
"name" : "ios",
"version" : "16.0"
}
],
"products" : [
{
"name" : "SSTVCore",
"targets" : [
"SSTVCore"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "sstv",
"targets" : [
"sstv"
],
"type" : {
"executable" : null
}
}
],
"targets" : [
{
"c99name" : "sstvTests",
"module_type" : "SwiftTarget",
"name" : "sstvTests",
"path" : "Tests/sstvTests",
"sources" : [
"DecoderStateBehaviorTests.swift",
"DecoderStateTests.swift",
"DecodingOptionsTests.swift",
"DecodingProgressTests.swift",
"FMDemodulatorTests.swift",
"GoertzelTests.swift",
"GoldenFileTests.swift",
"ImageBufferTests.swift",
"ImageWriterTests.swift",
"PD120ModeTests.swift",
"PD180ModeTests.swift",
"Robot36ModeTests.swift",
"SignalSearchTests.swift",
"VISDetectorTests.swift",
"WAVReaderTests.swift"
],
"target_dependencies" : [
"SSTVCore"
],
"type" : "test"
},
{
"c99name" : "sstv",
"module_type" : "SwiftTarget",
"name" : "sstv",
"path" : "Sources/sstv",
"product_dependencies" : [
"ArgumentParser"
],
"product_memberships" : [
"sstv"
],
"sources" : [
"CLIDecoderDelegate.swift",
"CLIOutput.swift",
"DecodeCommand.swift",
"ExitCodes.swift",
"InfoCommand.swift",
"SSTVCommand.swift"
],
"target_dependencies" : [
"SSTVCore"
],
"type" : "executable"
},
{
"c99name" : "SSTVCore",
"module_type" : "SwiftTarget",
"name" : "SSTVCore",
"path" : "Sources/SSTVCore",
"product_memberships" : [
"SSTVCore",
"sstv"
],
"sources" : [
"Audio/WAVReader.swift",
"DSP/FMDemodulator.swift",
"DSP/Goertzel.swift",
"Image/ImageBuffer.swift",
"Image/ImageWriter.swift",
"Modes/ModeParameters.swift",
"Modes/PD120Mode.swift",
"Modes/PD180Mode.swift",
"Modes/PDModeShared.swift",
"Modes/Robot36Mode.swift",
"SSTV/DecoderDelegate.swift",
"SSTV/DecodingOptions.swift",
"SSTV/DecodingProgress.swift",
"SSTV/SSTVDecoder.swift",
"SSTV/SSTVDecoderCore.swift",
"SSTV/SSTVMode.swift",
"SSTV/VISDetector.swift",
"Util/ImageComparison.swift"
],
"type" : "library"
}
],
"tools_version" : "5.9"
}
basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:a7bfd71e9384436264431030299dc8a2d42d0664a168cfa1a5dd84c9bc592ccf
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
Done.