Swift Package IndexBuild Information
Failed to build InterposeKit, reference 0.0.2 (17853a), with Swift 6.3 for Linux on 11 Apr 2026 01:01:12 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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
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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/steipete/InterposeKit.git
Reference: 0.0.2
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/steipete/InterposeKit
* tag 0.0.2 -> FETCH_HEAD
HEAD is now at 17853ad Update README.md
Cloned https://github.com/steipete/InterposeKit.git
Revision (git rev-parse @):
17853ad69961a5114e25c60c3ce7600feac0eabd
SUCCESS checkout https://github.com/steipete/InterposeKit.git at 0.0.2
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Build
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Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/steipete/InterposeKit.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Building for debugging...
[0/3] Write sources
[1/3] Compiling ITKSuperBuilder.m
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/11] Compiling InterposeKit InterposeError.swift
[5/11] Compiling InterposeKit ClassHook.swift
[6/11] Compiling InterposeKit InterposeKit.swift
/host/spi-builder-workspace/Sources/InterposeKit/InterposeKit.swift:11:29: warning: cast from 'NSObject' to unrelated type 'AnyClass' (aka 'any AnyObject.Type') always fails
9 | _ implementation:(TypedHook<MethodSignature, HookSignature>) -> HookSignature?) throws -> AnyHook {
10 |
11 | if let klass = self as? AnyClass {
| `- warning: cast from 'NSObject' to unrelated type 'AnyClass' (aka 'any AnyObject.Type') always fails
12 | return try Interpose.ClassHook(class: klass, selector: selector, implementation: implementation).apply()
13 | } else {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/11] Emitting module InterposeKit
/host/spi-builder-workspace/Sources/InterposeKit/InterposeKit.swift:11:29: warning: cast from 'NSObject' to unrelated type 'AnyClass' (aka 'any AnyObject.Type') always fails
9 | _ implementation:(TypedHook<MethodSignature, HookSignature>) -> HookSignature?) throws -> AnyHook {
10 |
11 | if let klass = self as? AnyClass {
| `- warning: cast from 'NSObject' to unrelated type 'AnyClass' (aka 'any AnyObject.Type') always fails
12 | return try Interpose.ClassHook(class: klass, selector: selector, implementation: implementation).apply()
13 | } else {
/host/spi-builder-workspace/Sources/InterposeKit/LinuxCompileSupport.swift:40:2: error: Objective-C interoperability is disabled
38 | func imp_getBlock(_ anImp: IMP) -> Any? { return nil }
39 | @discardableResult func imp_removeBlock(_ anImp: IMP) -> Bool { false }
40 | @objc class NSError: NSObject {}
| `- error: Objective-C interoperability is disabled
41 | // AutoreleasingUnsafeMutablePointer is not available on Linux.
42 | typealias NSErrorPointer = UnsafeMutablePointer<NSError?>?
/host/spi-builder-workspace/Sources/InterposeKit/LinuxCompileSupport.swift:45:5: warning: non-'@objc' instance method declared in extension cannot be overridden; use 'public' instead; this will be an error in a future Swift language mode
43 | extension NSObject {
44 | /// :nodoc: value
45 | open func value(forKey key: String) -> Any? { return nil }
| `- warning: non-'@objc' instance method declared in extension cannot be overridden; use 'public' instead; this will be an error in a future Swift language mode
46 | }
47 | /// :nodoc: objc_AssociationPolicy
[8/11] Compiling InterposeKit AnyHook.swift
[9/11] Compiling InterposeKit Watcher.swift
[10/11] Compiling InterposeKit ObjectHook.swift
[11/11] Compiling InterposeKit LinuxCompileSupport.swift
/host/spi-builder-workspace/Sources/InterposeKit/LinuxCompileSupport.swift:40:2: error: Objective-C interoperability is disabled
38 | func imp_getBlock(_ anImp: IMP) -> Any? { return nil }
39 | @discardableResult func imp_removeBlock(_ anImp: IMP) -> Bool { false }
40 | @objc class NSError: NSObject {}
| `- error: Objective-C interoperability is disabled
41 | // AutoreleasingUnsafeMutablePointer is not available on Linux.
42 | typealias NSErrorPointer = UnsafeMutablePointer<NSError?>?
/host/spi-builder-workspace/Sources/InterposeKit/LinuxCompileSupport.swift:45:5: warning: non-'@objc' instance method declared in extension cannot be overridden; use 'public' instead; this will be an error in a future Swift language mode
43 | extension NSObject {
44 | /// :nodoc: value
45 | open func value(forKey key: String) -> Any? { return nil }
| `- warning: non-'@objc' instance method declared in extension cannot be overridden; use 'public' instead; this will be an error in a future Swift language mode
46 | }
47 | /// :nodoc: objc_AssociationPolicy
BUILD FAILURE 6.3 linux