Swift Package Index

Build Information

Failed to build swift-midi-io, reference 1.0.0 (f05f81), with Swift 6.1 for Wasm on 27 Apr 2026 07:31:41 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/orchetect/swift-midi-io.git
Reference: 1.0.0
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-io
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at f05f819 Set swift-midi-core dependency to 1.0.0
Cloned https://github.com/orchetect/swift-midi-io.git
Revision (git rev-parse @):
f05f81938be6842d0771ecdfac3cb589181154ea
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/orchetect/swift-midi-io.git at 1.0.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/orchetect/swift-midi-io.git
https://github.com/orchetect/swift-midi-io.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -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
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Fetching https://github.com/orchetect/swift-testing-extensions
Fetching https://github.com/orchetect/swift-midi-core
[1/1074] Fetching swift-testing-extensions
[1075/2546] Fetching swift-testing-extensions, swift-midi-core
Fetched https://github.com/orchetect/swift-testing-extensions from cache (0.31s)
Fetched https://github.com/orchetect/swift-midi-core from cache (0.35s)
Computing version for https://github.com/orchetect/swift-testing-extensions
Computed https://github.com/orchetect/swift-testing-extensions at 0.3.0 (1.92s)
Fetching https://github.com/tsolomko/SWCompression
Fetching https://github.com/swiftlang/swift-syntax.git
[1/17717] Fetching swcompression
[8860/92756] Fetching swcompression, swift-syntax
Fetched https://github.com/tsolomko/SWCompression from cache (5.67s)
Fetched https://github.com/swiftlang/swift-syntax.git from cache (5.68s)
Computing version for https://github.com/orchetect/swift-midi-core
Computed https://github.com/orchetect/swift-midi-core at 1.0.0 (6.45s)
Computing version for https://github.com/tsolomko/SWCompression
Computed https://github.com/tsolomko/SWCompression at 4.8.6 (3.54s)
Fetching https://github.com/tsolomko/BitByteData
[1/3232] Fetching bitbytedata
Fetched https://github.com/tsolomko/BitByteData from cache (0.82s)
Computing version for https://github.com/tsolomko/BitByteData
Computed https://github.com/tsolomko/BitByteData at 2.0.4 (1.82s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.1 (1.52s)
Creating working copy for https://github.com/orchetect/swift-testing-extensions
Working copy of https://github.com/orchetect/swift-testing-extensions resolved at 0.3.0
Creating working copy for https://github.com/orchetect/swift-midi-core
Working copy of https://github.com/orchetect/swift-midi-core resolved at 1.0.0
Creating working copy for https://github.com/tsolomko/BitByteData
Working copy of https://github.com/tsolomko/BitByteData resolved at 2.0.4
Creating working copy for https://github.com/swiftlang/swift-syntax.git
Working copy of https://github.com/swiftlang/swift-syntax.git resolved at 603.0.1
Creating working copy for https://github.com/tsolomko/SWCompression
Working copy of https://github.com/tsolomko/SWCompression resolved at 4.8.6
warning: 'spi-builder-workspace': dependency 'swift-midi-core' is not used by any target
warning: 'spi-builder-workspace': dependency 'swift-testing-extensions' is not used by any target
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module SwiftMIDIIO
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/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 |
[4/4] Compiling SwiftMIDIIO SwiftMIDIIO.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/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 |
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
warning: 'spi-builder-workspace': dependency 'swift-midi-core' is not used by any target
warning: 'spi-builder-workspace': dependency 'swift-testing-extensions' is not used by any target
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/3] Emitting module SwiftMIDIIO
/host/spi-builder-workspace/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 |
[3/3] Compiling SwiftMIDIIO SwiftMIDIIO.swift
/host/spi-builder-workspace/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 6.1 wasm