Swift Package IndexBuild Information
Failed to build SJSAssetExportSession, reference 0.5.1 (12243a), with Swift 6.1 for macOS (SPM) on 10 Oct 2026 08:03:15 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/samsonjs/SJSAssetExportSession.git
Reference: 0.5.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samsonjs/SJSAssetExportSession
* tag 0.5.1 -> FETCH_HEAD
HEAD is now at 12243ab Bump version to 0.5.1
Cloned https://github.com/samsonjs/SJSAssetExportSession.git
Revision (git rev-parse @):
12243ab2e3e23465c457019de40d13faa5a88653
SUCCESS checkout https://github.com/samsonjs/SJSAssetExportSession.git at 0.5.1
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Build
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Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/samsonjs/SJSAssetExportSession.git
https://github.com/samsonjs/SJSAssetExportSession.git
{
"dependencies" : [
],
"manifest_display_name" : "SJSAssetExportSession",
"name" : "SJSAssetExportSession",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "ios",
"version" : "17.0"
}
],
"products" : [
{
"name" : "SJSAssetExportSession",
"targets" : [
"SJSAssetExportSession"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SJSAssetExportSessionTests",
"module_type" : "SwiftTarget",
"name" : "SJSAssetExportSessionTests",
"path" : "Tests/SJSAssetExportSessionTests",
"resources" : [
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-4k-hdr-hevc-30fps.mov",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-5.1-audio.mp4",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-720p-h264-24fps.mov",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-no-audio.mp4",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-no-video.m4a",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-spatial-audio.mov",
"rule" : {
"process" : {
}
}
},
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SJSAssetExportSessionTests/Resources/test-x264-1080p-h264-60fps.mp4",
"rule" : {
"process" : {
}
}
}
],
"sources" : [
"AudioMixTests.swift",
"AutoDestructingURL.swift",
"BaseTests.swift",
"DrawFrameTests.swift",
"ExportFidelityTests.swift",
"FrameRateTests.swift",
"ReadmeExamples.swift",
"SJSAssetExportSessionTests.swift",
"SendableWrapper.swift",
"TestVideo.swift"
],
"target_dependencies" : [
"SJSAssetExportSession"
],
"type" : "test"
},
{
"c99name" : "SJSAssetExportSession",
"module_type" : "SwiftTarget",
"name" : "SJSAssetExportSession",
"path" : "Sources/SJSAssetExportSession",
"product_memberships" : [
"SJSAssetExportSession"
],
"sources" : [
"Array+Extensions.swift",
"AudioOutputSettings.swift",
"CMTime+seconds.swift",
"ExportSession+Error.swift",
"ExportSession.swift",
"SampleWriter.swift",
"VideoFrame.swift",
"VideoFrameSource.swift",
"VideoOutputSettings.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/12] Compiling SJSAssetExportSession Array+Extensions.swift
[4/12] Compiling SJSAssetExportSession AudioOutputSettings.swift
[5/12] Compiling SJSAssetExportSession CMTime+seconds.swift
[6/12] Emitting module SJSAssetExportSession
[7/12] Compiling SJSAssetExportSession ExportSession+Error.swift
[8/12] Compiling SJSAssetExportSession VideoOutputSettings.swift
[9/12] Compiling SJSAssetExportSession ExportSession.swift
[10/12] Compiling SJSAssetExportSession VideoFrame.swift
[11/12] Compiling SJSAssetExportSession VideoFrameSource.swift
[12/12] Compiling SJSAssetExportSession SampleWriter.swift
/Users/admin/builder/spi-builder-workspace/Sources/SJSAssetExportSession/SampleWriter.swift:283:37: error: sending 'input' risks causing data races
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'input' risks causing data races
| `- note: 'self'-isolated 'input' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later nonisolated uses
284 | }
285 | guard hasMore else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/SJSAssetExportSession/SampleWriter.swift:283:50: error: sending 'nextSample' risks causing data races
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'nextSample' risks causing data races
| `- note: 'self'-isolated 'nextSample' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later nonisolated uses
284 | }
285 | guard hasMore else { return false }
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/11] Compiling SJSAssetExportSession VideoFrameSource.swift
[3/11] Compiling SJSAssetExportSession VideoFrame.swift
[4/11] Compiling SJSAssetExportSession ExportSession.swift
[5/11] Compiling SJSAssetExportSession ExportSession+Error.swift
[6/11] Compiling SJSAssetExportSession Array+Extensions.swift
[7/11] Compiling SJSAssetExportSession CMTime+seconds.swift
[8/11] Compiling SJSAssetExportSession VideoOutputSettings.swift
[9/11] Emitting module SJSAssetExportSession
[10/11] Compiling SJSAssetExportSession SampleWriter.swift
/Users/admin/builder/spi-builder-workspace/Sources/SJSAssetExportSession/SampleWriter.swift:283:37: error: sending 'input' risks causing data races
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'input' risks causing data races
| `- note: 'self'-isolated 'input' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later nonisolated uses
284 | }
285 | guard hasMore else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/SJSAssetExportSession/SampleWriter.swift:283:50: error: sending 'nextSample' risks causing data races
280 | // A pool per sample: this loop can run for many frames before returning to the
281 | // queue, and whatever the artist autoreleases would otherwise pile up until then.
282 | let hasMore = autoreleasepool {
| `- note: access can happen concurrently
283 | writeNextSample(to: input, from: nextSample)
| |- error: sending 'nextSample' risks causing data races
| `- note: 'self'-isolated 'nextSample' is captured by a actor-isolated closure. actor-isolated uses in closure may race against later nonisolated uses
284 | }
285 | guard hasMore else { return false }
[11/11] Compiling SJSAssetExportSession AudioOutputSettings.swift
BUILD FAILURE 6.1 macosSpm