Swift Package Index

Build Information

Failed to build NotificationTask, reference 0.1.2 (638c59), with Swift 6.3 for macOS (SPM) on 16 Apr 2026 02:59:30 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/samsonjs/NotificationTask.git
Reference: 0.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/samsonjs/NotificationTask
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at 638c594 Add Hashable conformance
Cloned https://github.com/samsonjs/NotificationTask.git
Revision (git rev-parse @):
638c5942c06a66a69ab44ca5ab4e2bd77e5a2297
SUCCESS checkout https://github.com/samsonjs/NotificationTask.git at 0.1.2
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ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "traits": [
    "default"
  ],
  "dependencies": [
    {
      "identity": "notificationtask",
      "name": "NotificationTask",
      "url": "https://github.com/samsonjs/NotificationTask.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/NotificationTask",
      "traits": [
        "default"
      ],
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/samsonjs/NotificationTask.git
[1/30] Fetching notificationtask
Fetched https://github.com/samsonjs/NotificationTask.git from cache (0.63s)
Creating working copy for https://github.com/samsonjs/NotificationTask.git
Working copy of https://github.com/samsonjs/NotificationTask.git resolved at 0.1.2 (638c594)
warning: '.resolve-product-dependencies': dependency 'notificationtask' is not used by any target
Found 0 product dependencies
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/samsonjs/NotificationTask.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--6988338F2F200930.txt
[3/4] Emitting module NotificationTask
/Users/admin/builder/spi-builder-workspace/Sources/NotificationTask/NotificationTask.swift:3:49: warning: conformance of 'Notification' to protocol 'Sendable' was already stated in the type's module 'Foundation'
 1 | public import Foundation
 2 |
 3 | extension Notification: @unchecked @retroactive Sendable {}
   |                                                 `- warning: conformance of 'Notification' to protocol 'Sendable' was already stated in the type's module 'Foundation'
 4 |
 5 | /// Manages a task that observes notifications. The tasks's lifetime is tied to the lifetime of the `NotificationTask` instance, so you
Foundation.Notification:6:11: note: 'Notification' declares conformance to protocol 'Sendable' here
4 | @available(watchOS, unavailable, introduced: 2.0)
5 | @available(*, unavailable)
6 | extension Notification : Sendable {
  |           `- note: 'Notification' declares conformance to protocol 'Sendable' here
7 | }
[4/4] Compiling NotificationTask NotificationTask.swift
/Users/admin/builder/spi-builder-workspace/Sources/NotificationTask/NotificationTask.swift:3:49: warning: conformance of 'Notification' to protocol 'Sendable' was already stated in the type's module 'Foundation'
 1 | public import Foundation
 2 |
 3 | extension Notification: @unchecked @retroactive Sendable {}
   |                                                 `- warning: conformance of 'Notification' to protocol 'Sendable' was already stated in the type's module 'Foundation'
 4 |
 5 | /// Manages a task that observes notifications. The tasks's lifetime is tied to the lifetime of the `NotificationTask` instance, so you
Foundation.Notification:6:11: note: 'Notification' declares conformance to protocol 'Sendable' here
4 | @available(watchOS, unavailable, introduced: 2.0)
5 | @available(*, unavailable)
6 | extension Notification : Sendable {
  |           `- note: 'Notification' declares conformance to protocol 'Sendable' here
7 | }
/Users/admin/builder/spi-builder-workspace/Sources/NotificationTask/NotificationTask.swift:46:23: error: sending 'context' risks causing data races [#SendingRisksDataRace]
44 |             for await notification in center.notifications(named: name) {
45 |                 guard let context else { break }
46 |                 await block(context, notification)
   |                       |- error: sending 'context' risks causing data races [#SendingRisksDataRace]
   |                       `- note: sending main actor-isolated 'context' to nonisolated callee risks causing data races between nonisolated and main actor-isolated uses
47 |             }
48 |         }
[#SendingRisksDataRace]: <https://docs.swift.org/compiler/documentation/diagnostics/sending-risks-data-race>
BUILD FAILURE 6.3 macosSpm