Swift Package IndexBuild Information
Failed to build swift-midi, reference 1.1.0 (17e72a), with Swift 6.3 for Linux on 25 Jun 2026 14:42:21 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/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-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 84b05a9e9cc18f95437d4cb621188f156013198a
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/orchetect/swift-midi.git
Reference: 1.1.0
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/orchetect/swift-midi
* tag 1.1.0 -> FETCH_HEAD
HEAD is now at 17e72aa Bumped dependency versions
Cloned https://github.com/orchetect/swift-midi.git
Revision (git rev-parse @):
17e72aa3b73b05d195481dd72c05bc91433be119
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/orchetect/swift-midi.git at 1.1.0
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Build
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Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/orchetect/swift-midi.git
WARNING: environment variable DOCKER_REGISTRY is not set
WARNING: environment variable DOCKER_IMAGE is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:b51ca78cca69bdb7bac6de0087100152780ea26ceb84ad1b05e1a88cce39888e
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Fetching https://github.com/orchetect/swift-midi-core
Fetching https://github.com/orchetect/swift-midi-ui
Fetching https://github.com/orchetect/swift-midi-controlsurfaces
Fetching https://github.com/orchetect/swift-midi-file
Fetching https://github.com/orchetect/swift-midi-io
[1/416] Fetching swift-midi-ui
[35/2051] Fetching swift-midi-ui, swift-midi-core
[659/2866] Fetching swift-midi-ui, swift-midi-core, swift-midi-file
[965/4561] Fetching swift-midi-ui, swift-midi-core, swift-midi-file, swift-midi-io
[3664/5100] Fetching swift-midi-ui, swift-midi-core, swift-midi-file, swift-midi-io, swift-midi-controlsurfaces
Fetched https://github.com/orchetect/swift-midi-ui from cache (0.41s)
Fetched https://github.com/orchetect/swift-midi-file from cache (0.41s)
Fetched https://github.com/orchetect/swift-midi-io from cache (0.41s)
Fetching https://github.com/orchetect/swift-midi-sync
Fetched https://github.com/orchetect/swift-midi-controlsurfaces from cache (0.42s)
Fetched https://github.com/orchetect/swift-midi-core from cache (0.42s)
[1/323] Fetching swift-midi-sync
Fetched https://github.com/orchetect/swift-midi-sync from cache (0.40s)
Computing version for https://github.com/orchetect/swift-midi-ui
Computed https://github.com/orchetect/swift-midi-ui at 1.1.0 (1.03s)
Computing version for https://github.com/orchetect/swift-midi-sync
Computed https://github.com/orchetect/swift-midi-sync at 1.0.1 (0.21s)
Fetching https://github.com/orchetect/swift-timecode
[1/27064] Fetching swift-timecode
Fetched https://github.com/orchetect/swift-timecode from cache (1.08s)
Computing version for https://github.com/orchetect/swift-midi-io
Computed https://github.com/orchetect/swift-midi-io at 1.1.0 (1.29s)
Computing version for https://github.com/orchetect/swift-midi-file
Computed https://github.com/orchetect/swift-midi-file at 1.0.1 (0.20s)
Fetching https://github.com/orchetect/swift-data-parsing
[1/880] Fetching swift-data-parsing
Fetched https://github.com/orchetect/swift-data-parsing from cache (0.60s)
Computing version for https://github.com/orchetect/swift-midi-core
Computed https://github.com/orchetect/swift-midi-core at 1.0.1 (0.81s)
Computing version for https://github.com/orchetect/swift-midi-controlsurfaces
Computed https://github.com/orchetect/swift-midi-controlsurfaces at 1.0.1 (0.20s)
Computing version for https://github.com/orchetect/swift-data-parsing
Computed https://github.com/orchetect/swift-data-parsing at 0.1.2 (0.19s)
Computing version for https://github.com/orchetect/swift-timecode
Computed https://github.com/orchetect/swift-timecode at 3.1.2 (0.87s)
Creating working copy for https://github.com/orchetect/swift-data-parsing
Working copy of https://github.com/orchetect/swift-data-parsing resolved at 0.1.2
Creating working copy for https://github.com/orchetect/swift-midi-file
Working copy of https://github.com/orchetect/swift-midi-file resolved at 1.0.1
Creating working copy for https://github.com/orchetect/swift-midi-sync
Working copy of https://github.com/orchetect/swift-midi-sync resolved at 1.0.1
Creating working copy for https://github.com/orchetect/swift-midi-ui
Working copy of https://github.com/orchetect/swift-midi-ui resolved at 1.1.0
Creating working copy for https://github.com/orchetect/swift-midi-core
Working copy of https://github.com/orchetect/swift-midi-core resolved at 1.0.1
Creating working copy for https://github.com/orchetect/swift-midi-io
Working copy of https://github.com/orchetect/swift-midi-io resolved at 1.1.0
Creating working copy for https://github.com/orchetect/swift-midi-controlsurfaces
Working copy of https://github.com/orchetect/swift-midi-controlsurfaces resolved at 1.0.1
Creating working copy for https://github.com/orchetect/swift-timecode
Working copy of https://github.com/orchetect/swift-timecode resolved at 3.1.2
Building for debugging...
[0/14] Write sources
[10/14] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/132] Emitting module SwiftMIDIInternals
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:48:48: error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
46 | leeway: DispatchTimeInterval = .nanoseconds(0),
47 | queue: DispatchQueue? = nil,
48 | eventHandler: @escaping DispatchSource.DispatchSourceHandler = { }
| `- error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
49 | ) {
50 | self.rate = rate
Dispatch.DispatchSource:1:14: note: 'DispatchSource' declared here
1 | public class DispatchSource : DispatchObject, @unchecked Sendable, DispatchSourceProtocol, DispatchSourceRead, DispatchSourceSignal, DispatchSourceTimer, DispatchSourceUserDataAdd, DispatchSourceUserDataOr, DispatchSourceUserDataReplace, DispatchSourceWrite {
| `- note: 'DispatchSource' declared here
2 | deinit
3 | }
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:48:23: error: '@escaping' only applies to function types
46 | leeway: DispatchTimeInterval = .nanoseconds(0),
47 | queue: DispatchQueue? = nil,
48 | eventHandler: @escaping DispatchSource.DispatchSourceHandler = { }
| `- error: '@escaping' only applies to function types
49 | ) {
50 | self.rate = rate
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:123:67: error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
121 |
122 | /// Set the event handler closure that the timer executes
123 | public func setEventHandler(handler: @escaping DispatchSource.DispatchSourceHandler) {
| `- error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
124 | timer.setEventHandler(handler: handler)
125 | }
Dispatch.DispatchSource:1:14: note: 'DispatchSource' declared here
1 | public class DispatchSource : DispatchObject, @unchecked Sendable, DispatchSourceProtocol, DispatchSourceRead, DispatchSourceSignal, DispatchSourceTimer, DispatchSourceUserDataAdd, DispatchSourceUserDataOr, DispatchSourceUserDataReplace, DispatchSourceWrite {
| `- note: 'DispatchSource' declared here
2 | deinit
3 | }
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:123:42: error: '@escaping' only applies to function types
121 |
122 | /// Set the event handler closure that the timer executes
123 | public func setEventHandler(handler: @escaping DispatchSource.DispatchSourceHandler) {
| `- error: '@escaping' only applies to function types
124 | timer.setEventHandler(handler: handler)
125 | }
[13/134] Emitting module SwiftTimecodeCore
[14/144] Emitting module SwiftDataParsing
[15/147] Compiling SwiftMIDIIO SwiftMIDIIO.swift
/host/spi-builder-workspace/.build/checkouts/swift-midi-io/Sources/Unsupported/SwiftMIDIIO.swift:10:8: error: no such module 'CoreMIDI'
8 |
9 | // artificially cause the build to fail by attempting to import an Apple-only framework
10 | import CoreMIDI
| `- error: no such module 'CoreMIDI'
11 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[16/147] Emitting module SwiftMIDIIO
/host/spi-builder-workspace/.build/checkouts/swift-midi-io/Sources/Unsupported/SwiftMIDIIO.swift:10:8: error: no such module 'CoreMIDI'
8 |
9 | // artificially cause the build to fail by attempting to import an Apple-only framework
10 | import CoreMIDI
| `- error: no such module 'CoreMIDI'
11 |
BUILD FAILURE 6.3 linux