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Build Information

Failed to build HorizonCalendar, reference master (470234), with Swift 5.10 for macOS (SPM) on 13 Oct 2025 22:39:43 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/airbnb/HorizonCalendar.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/airbnb/HorizonCalendar
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 4702347 Add test mode for accessibility testing (fixes crashes) (#340)
Cloned https://github.com/airbnb/HorizonCalendar.git
Revision (git rev-parse @):
470234795d319d0924db5f98ec1f70b03a88f2de
SUCCESS checkout https://github.com/airbnb/HorizonCalendar.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/airbnb/HorizonCalendar.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin FormatSwift
[2/2] Compiling plugin GenerateDoccReference
[3/3] Compiling plugin GenerateManual
Building for debugging...
[3/5] Write sources
[4/5] Write swift-version-33747A42983211AE.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/48] Emitting module HorizonCalendar
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[7/52] Compiling HorizonCalendar DayView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[8/52] Compiling HorizonCalendar DrawingConfig.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[9/52] Compiling HorizonCalendar MonthGridBackgroundView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[10/52] Compiling HorizonCalendar MonthHeaderView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[11/52] Compiling HorizonCalendar LayoutItem.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[12/52] Compiling HorizonCalendar LayoutItemTypeEnumerator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[13/52] Compiling HorizonCalendar PaginationHelpers.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[14/52] Compiling HorizonCalendar ScreenPixelAlignment.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[15/52] Compiling HorizonCalendar ScrollMetricsMutator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[16/52] Compiling HorizonCalendar MonthRange.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[17/52] Compiling HorizonCalendar MonthsLayout.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[18/52] Compiling HorizonCalendar OverlaidItemLocation.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[19/52] Compiling HorizonCalendar OverlayLayoutContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[20/52] Compiling HorizonCalendar DayRange.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[21/52] Compiling HorizonCalendar DayRangeLayoutContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[22/52] Compiling HorizonCalendar DaysOfTheWeekRowSeparatorOptions.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[23/52] Compiling HorizonCalendar DayOfWeekView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[24/52] Compiling HorizonCalendar Shape.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[25/52] Compiling HorizonCalendar SwiftUIWrapperView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[26/52] Compiling HorizonCalendar Month.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[27/52] Compiling HorizonCalendar MonthLayoutContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[28/52] Compiling HorizonCalendar AnyCalendarItemModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[29/52] Compiling HorizonCalendar CalendarItemModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[30/52] Compiling HorizonCalendar CalendarItemViewRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[31/52] Compiling HorizonCalendar CalendarView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[32/52] Compiling HorizonCalendar CalendarViewContent.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[33/52] Compiling HorizonCalendar CalendarViewProxy.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[34/52] Compiling HorizonCalendar CalendarViewRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[35/52] Compiling HorizonCalendar CalendarViewScrollPosition.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[36/52] Compiling HorizonCalendar Day.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[37/52] Compiling HorizonCalendar DayOfWeekPosition.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[38/52] Compiling HorizonCalendar ScrollToItemContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[39/52] Compiling HorizonCalendar SubviewInsertionIndexTracker.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[40/52] Compiling HorizonCalendar UIView+NoAnimation.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[41/52] Compiling HorizonCalendar VisibleItem.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[42/52] Compiling HorizonCalendar VisibleItemsProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[43/52] Compiling HorizonCalendar CGFloat+MaxLayoutValue.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[44/52] Compiling HorizonCalendar Calendar+Helpers.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[45/52] Compiling HorizonCalendar CalendarScrollView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[46/52] Compiling HorizonCalendar ColorViewRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[47/52] Compiling HorizonCalendar Dictionary+MutatingValueForKey.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[48/52] Compiling HorizonCalendar DoubleLayoutPassHelpers.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[49/52] Compiling HorizonCalendar FrameProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[50/52] Compiling HorizonCalendar Hasher+CGRect.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[51/52] Compiling HorizonCalendar ItemView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
[52/52] Compiling HorizonCalendar ItemViewReuseManager.swift
/Users/admin/builder/spi-builder-workspace/Sources/Internal/CalendarScrollView.swift:16:8: error: no such module 'UIKit'
import UIKit
       ^
error: fatalError
Fetching https://github.com/airbnb/swift
[1/4467] Fetching swift
Fetched https://github.com/airbnb/swift from cache (2.92s)
Computing version for https://github.com/airbnb/swift
Computed https://github.com/airbnb/swift at 1.1.0 (2.34s)
Fetching https://github.com/apple/swift-argument-parser
[1/16656] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.38s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.6.2 (0.39s)
Creating working copy for https://github.com/airbnb/swift
Working copy of https://github.com/airbnb/swift resolved at 1.1.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.6.2
[23408/45848876] Downloading https://github.com/calda/SwiftFormat-nightly/releases/download/2025-07-23-b/SwiftFormat.artifactbundle.zip
[74466/56882921] Downloading https://github.com/calda/SwiftFormat-nightly/releases/download/2025-07-23-b/SwiftFormat.artifactbundle.zip, https://github.com/realm/SwiftLint/releases/download/0.55.1/SwiftLintBinary-macos.artifactbundle.zip
Downloading binary artifact https://github.com/realm/SwiftLint/releases/download/0.55.1/SwiftLintBinary-macos.artifactbundle.zip
Downloaded https://github.com/realm/SwiftLint/releases/download/0.55.1/SwiftLintBinary-macos.artifactbundle.zip (1.30s)
[45332534/45848876] Downloading https://github.com/calda/SwiftFormat-nightly/releases/download/2025-07-23-b/SwiftFormat.artifactbundle.zip
Downloading binary artifact https://github.com/calda/SwiftFormat-nightly/releases/download/2025-07-23-b/SwiftFormat.artifactbundle.zip
Downloaded https://github.com/calda/SwiftFormat-nightly/releases/download/2025-07-23-b/SwiftFormat.artifactbundle.zip (3.24s)
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/Tests/Info.plist
BUILD FAILURE 5.10 macosSpm