Swift Package IndexBuild Information
Failed to build AsyncMonitor, reference main (c2a231), with Swift 6.3 for Linux on 16 Apr 2026 07:01:18 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/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
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/samsonjs/AsyncMonitor.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/samsonjs/AsyncMonitor
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at c2a231a Fix a new warning for Swift 6.2
Cloned https://github.com/samsonjs/AsyncMonitor.git
Revision (git rev-parse @):
c2a231a40f8cb671cd53bc8273375bf8e6f5e74e
SUCCESS checkout https://github.com/samsonjs/AsyncMonitor.git at main
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Build
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Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/samsonjs/AsyncMonitor.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$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: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
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)
[3/9] Compiling AsyncMonitor AsyncSequence+Extensions.swift
[4/9] Compiling AsyncMonitor AnyAsyncCancellable.swift
[5/9] Emitting module AsyncMonitor
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:42:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
40 | func values<Value: Sendable>(
41 | for keyPath: KeyPath<Self, Value>,
42 | options: NSKeyValueObservingOptions = []
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
43 | ) -> AsyncStream<Value> {
44 | let (stream, continuation) = AsyncStream<Value>.makeStream()
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:103:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
101 | func monitorValues<Value: Sendable>(
102 | for keyPath: KeyPath<Self, Value>,
103 | options: NSKeyValueObservingOptions = [],
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
104 | changeHandler: @escaping (Value) -> Void
105 | ) -> any AsyncCancellable {
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:146:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
144 | func monitorValues<Value: Sendable>(
145 | for keyPath: KeyPath<Self, Value>,
146 | options: NSKeyValueObservingOptions = [],
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
147 | changeHandler: @escaping @Sendable (Value) -> Void
148 | ) -> any AsyncCancellable {
[6/9] Compiling AsyncMonitor AsyncCancellable.swift
[7/9] Compiling AsyncMonitor AsyncMonitor.swift
[8/9] Compiling AsyncMonitor ValueLocker.swift
[9/9] Compiling AsyncMonitor NSObject+AsyncKVO.swift
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:42:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
40 | func values<Value: Sendable>(
41 | for keyPath: KeyPath<Self, Value>,
42 | options: NSKeyValueObservingOptions = []
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
43 | ) -> AsyncStream<Value> {
44 | let (stream, continuation) = AsyncStream<Value>.makeStream()
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:103:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
101 | func monitorValues<Value: Sendable>(
102 | for keyPath: KeyPath<Self, Value>,
103 | options: NSKeyValueObservingOptions = [],
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
104 | changeHandler: @escaping (Value) -> Void
105 | ) -> any AsyncCancellable {
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:146:18: error: cannot find type 'NSKeyValueObservingOptions' in scope
144 | func monitorValues<Value: Sendable>(
145 | for keyPath: KeyPath<Self, Value>,
146 | options: NSKeyValueObservingOptions = [],
| `- error: cannot find type 'NSKeyValueObservingOptions' in scope
147 | changeHandler: @escaping @Sendable (Value) -> Void
148 | ) -> any AsyncCancellable {
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:45:20: error: cannot find type 'NSKeyValueObservation' in scope
43 | ) -> AsyncStream<Value> {
44 | let (stream, continuation) = AsyncStream<Value>.makeStream()
45 | let token: NSKeyValueObservation? = self.observe(keyPath, options: options) { object, _ in
| `- error: cannot find type 'NSKeyValueObservation' in scope
46 | continuation.yield(object[keyPath: keyPath])
47 | }
/host/spi-builder-workspace/Sources/AsyncMonitor/NSObject+AsyncKVO.swift:45:50: error: value of type 'Self' has no member 'observe'
43 | ) -> AsyncStream<Value> {
44 | let (stream, continuation) = AsyncStream<Value>.makeStream()
45 | let token: NSKeyValueObservation? = self.observe(keyPath, options: options) { object, _ in
| `- error: value of type 'Self' has no member 'observe'
46 | continuation.yield(object[keyPath: keyPath])
47 | }
BUILD FAILURE 6.3 linux