The Swift Package Index logo.Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build LightweightObservable with Swift 5.9 for macOS (SPM).

Build Command

Build command unavailable

Build Log

========================================
RunAll
========================================
Builder version: 4.27.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/fxm90/LightweightObservable.git
Reference: main
Initialized empty Git repository in /Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/fxm90/LightweightObservable
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a54bfdc Refactor CI setup (#10)
Cloned https://github.com/fxm90/LightweightObservable.git
Revision (git rev-parse @):
a54bfdcffe8aca708f78cc7fea222ed593d7abd3
SUCCESS checkout https://github.com/fxm90/LightweightObservable.git at main
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "lightweightobservable",
      "name": "LightweightObservable",
      "url": "https://github.com/fxm90/LightweightObservable.git",
      "version": "unspecified",
      "path": "/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/LightweightObservable",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/fxm90/LightweightObservable.git
[1/1967] Fetching lightweightobservable
Fetched https://github.com/fxm90/LightweightObservable.git (14.56s)
Creating working copy for https://github.com/fxm90/LightweightObservable.git
Working copy of https://github.com/fxm90/LightweightObservable.git resolved at main
warning: '.resolve-product-dependencies': dependency 'lightweightobservable' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD/checkout
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.0.0.app xcrun swift build --arch arm64
Building for debugging...
[1/6] Compiling LightweightObservable Observable+Combine.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:28: error: 'Subscriber' is only available in macOS 10.15 or newer
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:17: note: add @available attribute to enclosing instance method
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:15:1: note: add @available attribute to enclosing extension
extension Observable: Publisher {
^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:33: error: 'Subscriber' is only available in macOS 10.15 or newer
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:21: error: 'Subscribers' is only available in macOS 10.15 or newer
    func request(_: Subscribers.Demand) {
                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:10: note: add @available attribute to enclosing instance method
    func request(_: Subscribers.Demand) {
         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:66:1: note: add @available attribute to enclosing extension
extension Observable.Subscription: Subscription {
^
[2/6] Compiling LightweightObservable Observable+Equatable.swift
[3/6] Compiling LightweightObservable Observable+KeyPath.swift
[4/6] Compiling LightweightObservable Disposable.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/6] Compiling LightweightObservable Observable.swift
[6/6] Emitting module LightweightObservable
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:28: error: 'Subscriber' is only available in macOS 10.15 or newer
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:17: note: add @available attribute to enclosing instance method
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:15:1: note: add @available attribute to enclosing extension
extension Observable: Publisher {
^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:33: error: 'Subscriber' is only available in macOS 10.15 or newer
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:21: error: 'Subscribers' is only available in macOS 10.15 or newer
    func request(_: Subscribers.Demand) {
                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:10: note: add @available attribute to enclosing instance method
    func request(_: Subscribers.Demand) {
         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:66:1: note: add @available attribute to enclosing extension
extension Observable.Subscription: Subscription {
^
error: fatalError
[0/1] Planning build
Building for debugging...
error: emit-module command failed with exit code 1 (use -v to see invocation)
[1/2] Emitting module LightweightObservable
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:28: error: 'Subscriber' is only available in macOS 10.15 or newer
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:17: note: add @available attribute to enclosing instance method
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:15:1: note: add @available attribute to enclosing extension
extension Observable: Publisher {
^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:33: error: 'Subscriber' is only available in macOS 10.15 or newer
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:21: error: 'Subscribers' is only available in macOS 10.15 or newer
    func request(_: Subscribers.Demand) {
                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:10: note: add @available attribute to enclosing instance method
    func request(_: Subscribers.Demand) {
         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:66:1: note: add @available attribute to enclosing extension
extension Observable.Subscription: Subscription {
^
[2/2] Compiling LightweightObservable Observable+Combine.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:28: error: 'Subscriber' is only available in macOS 10.15 or newer
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:24:17: note: add @available attribute to enclosing instance method
    public func receive<S: Subscriber>(subscriber: S) where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:15:1: note: add @available attribute to enclosing extension
extension Observable: Publisher {
^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:33: error: 'Subscriber' is only available in macOS 10.15 or newer
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:39:17: note: add @available attribute to enclosing generic class
    final class Subscription<S: Subscriber> where S.Input == Output, S.Failure == Failure {
                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:21: error: 'Subscribers' is only available in macOS 10.15 or newer
    func request(_: Subscribers.Demand) {
                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:67:10: note: add @available attribute to enclosing instance method
    func request(_: Subscribers.Demand) {
         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/LightweightObservable/Sources/Extensions/Observable+Combine.swift:66:1: note: add @available attribute to enclosing extension
extension Observable.Subscription: Subscription {
^
error: fatalError
BUILD FAILURE 5.9 macosSpm