The Swift Package Index logo.Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build Subviews, reference 0.0.2 (e93045), with Swift 6.2 (beta) for Linux on 20 Jun 2025 08:05:05 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dreymonde/Subviews.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/dreymonde/Subviews
 * tag               0.0.2      -> FETCH_HEAD
HEAD is now at e93045b update README
Cloned https://github.com/dreymonde/Subviews.git
Revision (git rev-parse @):
e93045be3e08ff47adc6bf12f86330cf2016f514
SUCCESS checkout https://github.com/dreymonde/Subviews.git at 0.0.2
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.2
Building package at path:  $PWD
https://github.com/dreymonde/Subviews.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:f81a7bd7aa87a0f81848d48c5bcc03f5f78deebd37fa5f9be9913077205d3687
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.2-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/12] Compiling Subviews Extensions.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[4/13] Compiling Subviews Creatable.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[5/13] Compiling Subviews Align.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[6/13] Compiling Subviews Child.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[7/13] Compiling Subviews Enclosed.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[8/13] Emitting module Subviews
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[9/13] Compiling Subviews AutoParent.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[10/13] Compiling Subviews AutoSuperview.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[11/13] Compiling Subviews Subview.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
[12/13] Compiling Subviews Stacks.swift
/host/spi-builder-workspace/Sources/Subviews/AutoParent.swift:1:8: error: no such module 'UIKit'
 1 | import UIKit
   |        `- error: no such module 'UIKit'
 2 |
 3 | open class ParentViewController: UIViewController, AddsSubviews, AddsChildrenViewControllers {
error: compile command failed due to signal 6 (use -v to see invocation)
swift-frontend: /home/build-user/swift/lib/Sema/MiscDiagnostics.cpp:2701: bool swift::diagnoseArgumentLabelError(ASTContext &, const ArgumentList *, ArrayRef<Identifier>, ParameterContext, InFlightDiagnostic *): Assertion `numMissing > 0 || numExtra > 0 || numWrong > 0' failed.
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0.	Program arguments: /usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/Subviews/AutoParent.swift /host/spi-builder-workspace/Sources/Subviews/AutoSuperview.swift /host/spi-builder-workspace/Sources/Subviews/Child.swift /host/spi-builder-workspace/Sources/Subviews/Enclosed.swift /host/spi-builder-workspace/Sources/Subviews/Extensions.swift /host/spi-builder-workspace/Sources/Subviews/Internal/Align.swift /host/spi-builder-workspace/Sources/Subviews/Internal/Creatable.swift /host/spi-builder-workspace/Sources/Subviews/Stacks.swift /host/spi-builder-workspace/Sources/Subviews/Subview.swift -primary-file /host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift -emit-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Subviews.build/ViewLayoutOption.d -emit-reference-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Subviews.build/ViewLayoutOption.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Subviews.build/ViewLayoutOption.dia -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Modules -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format=dwarf -dwarf-version=4 -module-cache-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/ModuleCache -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -empty-abi-descriptor -enable-anonymous-context-mangled-names -file-compilation-dir /host/spi-builder-workspace -Xcc -g -Xcc -fno-omit-frame-pointer -no-auto-bridging-header-chaining -module-name Subviews -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Subviews.build/ViewLayoutOption.swift.o -index-store-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/index/store -index-system-modules
1.	Swift version 6.2-dev (LLVM 0d47fa0a0fd41fb, Swift 536aa932a9e0ea3)
2.	Compiling with effective version 5.10
3.	While evaluating request TypeCheckPrimaryFileRequest(source_file "/host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift")
4.	While evaluating request TypeCheckFunctionBodyRequest(Subviews.(file).ViewLayoutOption.withSuperview@/host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift:43:24)
5.	While type-checking statement at [/host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift:43:117 - line:50:5] RangeText="{
        ViewLayoutOption {
            guard let superview = $0.superview else {
                return
            }
            layout($0, superview)
        }
    "
6.	While type-checking statement at [/host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift:44:9 - line:49:9] RangeText="ViewLayoutOption {
            guard let superview = $0.superview else {
                return
            }
            layout($0, superview)
        "
7.	While type-checking-target starting at /host/spi-builder-workspace/Sources/Subviews/ViewLayoutOption.swift:44:9
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend 0x000055d8ac479918
1  swift-frontend 0x000055d8ac47743e
2  swift-frontend 0x000055d8ac479fb1
3  libc.so.6      0x00007fc39ab13520
4  libc.so.6      0x00007fc39ab679fc pthread_kill + 300
5  libc.so.6      0x00007fc39ab13476 raise + 22
6  libc.so.6      0x00007fc39aaf97f3 abort + 211
7  libc.so.6      0x00007fc39aaf971b
8  libc.so.6      0x00007fc39ab0ae96
9  swift-frontend 0x000055d8a5de5ca2
10 swift-frontend 0x000055d8a5d4722c
11 swift-frontend 0x000055d8a608a4df
12 swift-frontend 0x000055d8a608ad92
13 swift-frontend 0x000055d8a5ebeba7
14 swift-frontend 0x000055d8a5fc37f8
15 swift-frontend 0x000055d8a5fc337c
16 swift-frontend 0x000055d8a5fbf011
17 swift-frontend 0x000055d8a5fc342d
18 swift-frontend 0x000055d8a5fc107c
19 swift-frontend 0x000055d8a5fc08c4
20 swift-frontend 0x000055d8a5fc045e
21 swift-frontend 0x000055d8a65bf0e2
22 swift-frontend 0x000055d8a6516bd9
23 swift-frontend 0x000055d8a669d398
24 swift-frontend 0x000055d8a602de62
25 swift-frontend 0x000055d8a602fe4b
26 swift-frontend 0x000055d8a602dd45
27 swift-frontend 0x000055d8a4b84129
28 swift-frontend 0x000055d8a4b7a3ea
29 swift-frontend 0x000055d8a4b7a1db
30 swift-frontend 0x000055d8a48233c2
31 swift-frontend 0x000055d8a48147de
32 swift-frontend 0x000055d8a4813878
33 swift-frontend 0x000055d8a458f26b
34 libc.so.6      0x00007fc39aafad90
35 libc.so.6      0x00007fc39aafae40 __libc_start_main + 128
36 swift-frontend 0x000055d8a458e265
BUILD FAILURE 6.2 linux