Build Information
Failed to build MELogger, reference 3.0.2 (c20cca), with Swift 6.3 for Wasm on 19 Apr 2026 03:13:17 UTC.
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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/Mono-Empire/MELogger.git
Reference: 3.0.2
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/Mono-Empire/MELogger
* tag 3.0.2 -> FETCH_HEAD
HEAD is now at c20ccae Add Sendable conformance for Swift 6 compatibility
Cloned https://github.com/Mono-Empire/MELogger.git
Revision (git rev-parse @):
c20ccae4ea9c296d4d14dfb0f144a88591c7cb3a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Mono-Empire/MELogger.git at 3.0.2
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/Mono-Empire/MELogger.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/10] Compiling MELogger FileLoggerDestination.swift
/host/spi-builder-workspace/Sources/MELogger/Destinations/FileLoggerDestination.swift:122:51: error: cannot find 'DispatchSemaphore' in scope
120 |
121 | /// Rotation semaphore
122 | private static let logFileActivitySemaphore = DispatchSemaphore(value: 1)
| `- error: cannot find 'DispatchSemaphore' in scope
123 |
124 | // MARK: - Settings
[4/11] Compiling MELogger MELoggerDestination.swift
[5/11] Compiling MELogger MELoggerProviding.swift
[6/11] Compiling MELogger MELoggerDestinationManager.swift
/host/spi-builder-workspace/Sources/MELogger/Managers/MELoggerDestinationManager.swift:11:56: error: cannot find 'DispatchQueue' in scope
9 | private static let instanceId = UUID()
10 |
11 | private let loggerDestinationEnabledMutatingLock = DispatchQueue(
| `- error: cannot find 'DispatchQueue' in scope
12 | label: "melogger.destination.\(instanceId).enabled.lock"
13 | )
/host/spi-builder-workspace/Sources/MELogger/Managers/MELoggerDestinationManager.swift:15:53: error: cannot find 'DispatchQueue' in scope
13 | )
14 |
15 | private let loggerDestinationListMutatingLock = DispatchQueue(
| `- error: cannot find 'DispatchQueue' in scope
16 | label: "melogger.destination.\(instanceId).list.lock"
17 | )
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/11] Compiling MELogger ConsoleLoggerDestination.swift
[8/11] Emitting module MELogger
/host/spi-builder-workspace/Sources/MELogger/Destinations/FileLoggerDestination.swift:122:51: error: cannot find 'DispatchSemaphore' in scope
120 |
121 | /// Rotation semaphore
122 | private static let logFileActivitySemaphore = DispatchSemaphore(value: 1)
| `- error: cannot find 'DispatchSemaphore' in scope
123 |
124 | // MARK: - Settings
/host/spi-builder-workspace/Sources/MELogger/Managers/MELoggerDestinationManager.swift:11:56: error: cannot find 'DispatchQueue' in scope
9 | private static let instanceId = UUID()
10 |
11 | private let loggerDestinationEnabledMutatingLock = DispatchQueue(
| `- error: cannot find 'DispatchQueue' in scope
12 | label: "melogger.destination.\(instanceId).enabled.lock"
13 | )
/host/spi-builder-workspace/Sources/MELogger/Managers/MELoggerDestinationManager.swift:15:53: error: cannot find 'DispatchQueue' in scope
13 | )
14 |
15 | private let loggerDestinationListMutatingLock = DispatchQueue(
| `- error: cannot find 'DispatchQueue' in scope
16 | label: "melogger.destination.\(instanceId).list.lock"
17 | )
[9/11] Compiling MELogger MockLoggerDestination.swift
[10/11] Compiling MELogger AssertionFailureDestination.swift
[11/11] Compiling MELogger MELogger.swift
BUILD FAILURE 6.3 wasm