Swift Package IndexBuild Information
Successful build of UUIDShortener, reference v1.0.0 (ef43dc), with Swift 6.1 for Linux on 26 Apr 2025 19:42:14 UTC.
Swift 6 data race errors: 6
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Dean151/uuid-shortener.git
Reference: v1.0.0
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/Dean151/uuid-shortener
* tag v1.0.0 -> FETCH_HEAD
HEAD is now at ef43dc9 Initial commit
Cloned https://github.com/Dean151/uuid-shortener.git
Revision (git rev-parse @):
ef43dc9e72b6b1f39166175b7bd6a86c34e4bd14
SUCCESS checkout https://github.com/Dean151/uuid-shortener.git at v1.0.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/Dean151/uuid-shortener.git
https://github.com/Dean151/uuid-shortener.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
],
"manifest_display_name" : "UUIDShortener",
"name" : "UUIDShortener",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "UUIDShortener",
"targets" : [
"UUIDShortener"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "UUIDShortenerTests",
"module_type" : "SwiftTarget",
"name" : "UUIDShortenerTests",
"path" : "Tests/UUIDShortenerTests",
"sources" : [
"UUIDShortenerTests.swift"
],
"target_dependencies" : [
"UUIDShortener"
],
"type" : "test"
},
{
"c99name" : "UUIDShortener",
"module_type" : "SwiftTarget",
"name" : "UUIDShortener",
"path" : "Sources/UUIDShortener",
"product_memberships" : [
"UUIDShortener"
],
"sources" : [
"UUIDShortener.swift"
],
"type" : "library"
}
],
"tools_version" : "5.5"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/4] Compiling UUIDShortener UUIDShortener.swift
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:7:23: warning: static property 'base36' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
| |- warning: static property 'base36' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base36' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
8 | /// Base 58 is flicker like convertion, excluding alike characters
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:9:23: warning: static property 'base58' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
8 | /// Base 58 is flicker like convertion, excluding alike characters
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
| |- warning: static property 'base58' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base58' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
10 | /// Base 62 is using all alphanumeric characters
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:11:23: warning: static property 'base62' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
10 | /// Base 62 is using all alphanumeric characters
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
| |- warning: static property 'base62' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base62' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12 | /// Base 64 is using all alphanumeric characters ; plus dash `-` and underscore `_`
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:13:23: warning: static property 'base64' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
12 | /// Base 64 is using all alphanumeric characters ; plus dash `-` and underscore `_`
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
| |- warning: static property 'base64' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base64' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 | /// Base 90 is using all characters that are safe of use inside a cookie value.
15 | public static let base90: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!#$%&'()*+-./:<=>?@[]^_`{|}~"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:15:23: warning: static property 'base90' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
14 | /// Base 90 is using all characters that are safe of use inside a cookie value.
15 | public static let base90: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!#$%&'()*+-./:<=>?@[]^_`{|}~"
| |- warning: static property 'base90' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base90' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
16 |
17 | let characters: [Character]
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:43:16: warning: static property 'base16' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
41 |
42 | extension Alphabet {
43 | static let base16: Alphabet = "0123456789abcdef"
| |- warning: static property 'base16' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base16' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | }
45 |
[4/4] Emitting module UUIDShortener
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:7:23: warning: static property 'base36' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
| |- warning: static property 'base36' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base36' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
8 | /// Base 58 is flicker like convertion, excluding alike characters
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:9:23: warning: static property 'base58' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
8 | /// Base 58 is flicker like convertion, excluding alike characters
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
| |- warning: static property 'base58' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base58' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
10 | /// Base 62 is using all alphanumeric characters
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:11:23: warning: static property 'base62' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
9 | public static let base58: Alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
10 | /// Base 62 is using all alphanumeric characters
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
| |- warning: static property 'base62' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base62' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
12 | /// Base 64 is using all alphanumeric characters ; plus dash `-` and underscore `_`
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:13:23: warning: static property 'base64' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
11 | public static let base62: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
12 | /// Base 64 is using all alphanumeric characters ; plus dash `-` and underscore `_`
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
| |- warning: static property 'base64' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base64' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 | /// Base 90 is using all characters that are safe of use inside a cookie value.
15 | public static let base90: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!#$%&'()*+-./:<=>?@[]^_`{|}~"
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:15:23: warning: static property 'base90' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
13 | public static let base64: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
14 | /// Base 90 is using all characters that are safe of use inside a cookie value.
15 | public static let base90: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!#$%&'()*+-./:<=>?@[]^_`{|}~"
| |- warning: static property 'base90' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base90' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
16 |
17 | let characters: [Character]
/host/spi-builder-workspace/Sources/UUIDShortener/UUIDShortener.swift:43:16: warning: static property 'base16' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
3 | // MARK: - Public
4 |
5 | public struct Alphabet: Equatable, ExpressibleByStringLiteral {
| `- note: consider making struct 'Alphabet' conform to the 'Sendable' protocol
6 | /// Base 36 is using all lowercases alphanumeric characters
7 | public static let base36: Alphabet = "0123456789abcdefghijklmnopqrstuvwxyz"
:
41 |
42 | extension Alphabet {
43 | static let base16: Alphabet = "0123456789abcdef"
| |- warning: static property 'base16' is not concurrency-safe because non-'Sendable' type 'Alphabet' may have shared mutable state; this is an error in the Swift 6 language mode
| |- note: add '@MainActor' to make static property 'base16' part of global actor 'MainActor'
| `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
44 | }
45 |
Build complete! (6.66s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "UUIDShortener",
"name" : "UUIDShortener",
"path" : "/host/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "UUIDShortener",
"targets" : [
"UUIDShortener"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "UUIDShortenerTests",
"module_type" : "SwiftTarget",
"name" : "UUIDShortenerTests",
"path" : "Tests/UUIDShortenerTests",
"sources" : [
"UUIDShortenerTests.swift"
],
"target_dependencies" : [
"UUIDShortener"
],
"type" : "test"
},
{
"c99name" : "UUIDShortener",
"module_type" : "SwiftTarget",
"name" : "UUIDShortener",
"path" : "Sources/UUIDShortener",
"product_memberships" : [
"UUIDShortener"
],
"sources" : [
"UUIDShortener.swift"
],
"type" : "library"
}
],
"tools_version" : "5.5"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.